Summer forage guide 2016

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BRASSICA & SUMMER GROW WITH CONFIDENCE INSIST ON THE YELLOW BAG


Brassica and Summer Forage Crop Guide

USING SUMMER FORAGES INTRODUCTION

Spring and summer present an opportunity to plant a forage crop for summer, autumn or winter feed. Depending on the environment, planting time, stock needs, climate and water availability, there is a range of productive varieties available. Forage brassicas are mostly grown in cool temperate parts of southern Australia, however many rape varieties can also be effectively grown in warmer broadacre areas by using an earlier sowing date. In hotter regions, sub-tropical cereals including millet and sorghum are ideal for grazing and fodder production. Chicory is another beneficial inclusion, either as a sole stand or in combination with brassicas or millet. Not only do fodder crops provide valuable feed, they are also an excellent way to provide a pasture break during a re-establishment phase.

Benefits of Summer Forages • Feed at key times when pastures are of low quality or quantity • High yield on a small area • Takes pressure off other areas of the farm • Efficient use of irrigation water • Weed break: selective herbicides • Disease break: host removal and bio-fumigant effect in many cases • Pasture pest break: removal of host and therefore break the lifecycle • Use of paddock while shortcomings such as fertility are being addressed • High quality feed • Animal performance • Home-grown feed at low cost.


CONTENTS HERITAGE SEEDS Summer forage selection guide

4

Success with summer forages

5

Forage brassicas

6

Brassica crop nutrition Forage rape (Leafmore, Interval) Brassica crop protection

7 8–9 10-–11

Leafy turnips (Falcon)

12

Turnips (Dynamo)

13

Swedes (Invitation)

14

Kale (Caledonian)

15

Brassica grazing management

16

Brassica animal health

17

Brassica crop allocation

18–19

Palatability and versatility of forage rape

20-–21

Brassica pests

22

Brassica diseases

23

Chicory (Commander)

24–25

Millet (Pearler, Shirohie)

26

Forage sorghum (Stargrazer)

27

Maize silage (HM-114, HM-151, HM-152)

28–31

Summer forages quick reference guide

32–33

Seed treatments

34


Brassica and Summer Forage Crop GuideGuide

4

SUMMER FORAGE SELECTION GUIDE Summer Conditions

Purpose

Use Pattern

Enterprise intensity

Suitable Species & Variety

Extensive Sheep/Beef

LEAFMORE

Intensive Dairy/Finishing

INTERVAL

Intensive Dairy/Finishing

DYNAMO

Extensive Sheep/Beef

INVITATION

Intensive Dairy/Finishing

CALEDONIAN

Page

9

Re-grazing possible Summer/Autumn Feed

Milder summers (usually most days <32°C)

Single graze only

Winter Keeping

Most Conditions

Summer/Autumn Feed

Summer Feed

Warm-Hot Summers

Maize Silage

13

14

Single graze only

Fast Feed, Re-grazing

Most Systems

Re-grazing

Most Systems

Re-grazing possible, silage, hay

Most Systems

Sown Early: Jul – Sep

Most Systems

Most Systems Summer/Autumn Feed

9

Re-grazing possible, silage, hay

Intensive Dairy/Beef

Longer Season

Temperate Areas

114 CRM

Short Season

Early Harvest

97 CRM

Very Short Season

Late Plant/ Early Harvest

88 CRM

FALCON

COMMANDER

SHIROHIE

LEAFMORE

PEARLER

STARGRAZER

HM-114

HM-152

HM-151

15

12

25

26

9

26

27

31

31

31


Brassica and Summer Forage Crop GuideGuide

SUCCESS WITH SUMMER FORAGES Paddock selection Summer forage crops can be grown in a wide range of soil types, however, it’s often the poorer performing paddocks that are selected. To grow a successful crop, it’s important to address the factors that have led to the paddock’s poor performance to date. To do so, it is advisable to take a soil test ahead of sowing to determine soil acidity and fertility for nutrient correction, lime and to apply suitable starter fertiliser for the crop. Some paddocks are sown to forage brassicas as part of a pasture establishment process to reduce weed problems and to correct problems for future pasture sowing. Heavier soil types and locations that retain moisture will assist yield. Terminating a pasture before moisture runs out in the spring will help maintain sub-soil moisture and offer the crop some resilience in dry times. It’s generally not suitable to grow forage brassicas under flood irrigation.

Paddock preparation Tillage or spray fallowing should be carried out at least 4–6 weeks prior to sowing to control weeds and conserve soil moisture. Initial tillage will encourage a strike of weeds. Further cultivation or chemical control will help ensure weed problems are reduced. In situations with a high level of turf-grass ‘mat’ multiple passes may be needed, although it may be prudent to retain some proportion of turf-mat in soils prone to erosion by wind or on sloping sites. Brassica seeds are very small, so a fine but firm seedbed is ideal, however direct drilling is sometimes required, often with good success, particularly with one-pass machinery.

Sowing To ensure maximum germination, sow brassicas no deeper than approximately 1.5cm into a firm, moist seedbed. Millet should be sown at 2–3cm, sorghum and maize may be sown at 4–6cm which is useful for chasing moisture on heavier soils. Pre-watering may be extremely beneficial, and essential if using water sourced from a deep dam. Light rolling and/ or a light harrowing can be used to aid seed soil contact and encourage better germination provided the soil surface is not likely to crust. An even and quick germination is often the key to success, especially when managing weeds. It’s important to monitor for pests including mites, cut-worm and slugs then respond rapidly with any required treatment. If weed control is required, treat weeds as early as possible to remove competition and to observe stock grazing withholding periods.

Grazing management Sound grazing management of forage crops is essential to maximise yield, feed quality and utilisation. Strip grazing or small block grazing with an electric fence will allow the crop to be utilised more effectively. Losses caused by trampling can be kept to a minimum, gorging can to some degree be managed and by controlling stock movements, the paddock can be utilised effectively. Back-fencing of multiple-graze crops, together with fertiliser top-dressing and timely irrigation will maximise the potential of the paddock. Avoid introducing empty, hungry animals onto a lush crop as various illnesses may result. Stock should have access to good clean water. This is especially important over summer when evaporation rates are higher and will help prevent suppression of appetite and consequent production setbacks. It’s advisable to introduce animals onto a forage crop slowly at first, so that the rumen can adjust to the change to a high quality diet. Brassicas are highly digestible and have a low fibre content, so access to roughage such as hay or a run-off to dry pasture may provide a more balanced diet and improved performance. Leafy millet and sorghum offer a reasonably well balanced feed, but become fibrous and lower in energy and protein as they mature later in the season.

5


Brassica and Summer Forage Crop GuideGuide

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FORAGE BRASSICAS Brassicas are specialty forage crop: potentially high yielding, high quality seasonal crops that are established during the warmer months to fill a summer, autumn or winter feed gap. Sowing rates vary widely, and depend on many factors including: • condition of the seed-bed at sowing time, method and accuracy of sowing equipment • seed size; and • length of time to maturity. Brassicas need a fine, weed-free seed bed, with a pH of 5.5 or above. Crops may respond to boron, molybdenum and phosphorus. Nitrogen application is usually needed, but care should be taken to avoid nitrate poisoning, particularly with drought (or other) stressed crops. Brassica crops will often respond well to appropriate applications of potassium, as this will tend to aid keeping ability and leaf retention. High rates of sulphur are not advised unless the site is particularly low in S. Newly introduced stock should be carefully monitored, and may take a little time to become accustomed to the crop. Flowering crops should not be fed to livestock. Within the brassica options there are good forage solutions as well as great versatility. As maturity times are relatively predictable, brassicas offer a terrific tool for feed budgeting to meet forage demand and output targets. Seek specific advice for your situation.

BRASSICA SOWING AND GRAZING PLANS

Forage Rapes

Leafy Turnips

Spring sown Autumn sown Spring sown Autumn sown

Dynamo Turnips Invitation Swede Caledonian Kale

Plant

Aug

Sep

Oct

Nov

Dec

u

t

Graze

u

Jan

Feb

Mar

Apr

May

Jun

t

u

Plant

u

u

Graze

u

u

Graze u

Graze

u

Plant

u

u

t

t

t

u

t

u

t

u

t

t

t

t

Graze Plant

Sep

t

Plant Plant

Aug

t

Graze Plant

Jul

t

Graze

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable

Forage brassicas may be planned to be offered for specific feed gaps or production targets. There is also a very good opportunity to plan for a series of crops and grazings from more-or-less a singular sowing date. For example, if a number of paddocks were sown in say November with different brassica crop types, then there would be potential for on-going feed: Sep Plan Early crop 8-10 weeks Main season crop 10-14 weeks Late crop 20-24 weeks

Identify suitable paddocks, soil test, spray off

Oct Prepare

Prepare sites fertiliser, lime, cultivate etc

Nov Sow 0–4 wks Leafmore rape Dynamo turnip Caledonian kale

Dec Grow 5–8 wks Manage weeds, pests, irrigation etc

Jan

Feb

Mar

Apr

May

June

C o n t in u o u s f e e d a v a il a b l e a n d o n - g o in g p a s t u re re n e w e l

9–12 wks

13–16 wks

17–20 wks

21–24 wks

25–28 wks

29–32 wks

Look after new pasture

Look after new pasture

1st grazing

Regrowth

2nd grazing

Re-sow to new pasture

Maintain crop care

Grazing

Re-sow to new pasture

Look after new pasture

Look after new pasture

Grazing

Maintain crop care

Maintain crop care

Maintain crop care

Grazing

Grazing

Plan spring crop or pasture


Brassica and Summer Forage Crop GuideGuide

BRASSICA CROP NUTRITION

7

Brassicas are a very nutrient demanding crop, and good results will only be achieved if the fertiliser supply is adequate. Soil testing prior to starting the crop is highly advisable. The results of the test may help to achieve desired yield outcomes, target specific nutrient imbalances or deficiencies, save money and present the paddock in good condition for subsequent crops or pastures. Whilst a high yielding crop will require some expense in terms of fertiliser inputs, as the crop is being grazed in situ, a very high proportion of the nutrients will remain in the same paddock after grazing from passing through the animal, plant trash and the plant roots. Allowing for animal production outputs and some losses through the environment or transferring to laneways, around 75–80% of the nutrients are likely to remain in the paddock. The following constitute general guidelines for good outcomes, however individual situations vary and competent advice should be sought for each circumstance.

SOIL FERTILITY pH (CaCl2)

> 5.5, 5.8–7.0 is preferred. Lime if required, and incorporate with cultivation.

Phosphorus

Olsen P > 20 is preferred. Crops typically benefit from applications of 20–30kg P/ha.

Nitrogen

Crops generally respond well to N. Requirements will vary depending on soil type and paddock history. If too much N is made available and /or in combination with other crop stresses, then nitrate poisoning may result. Do not apply too soon before grazing in particular. Often useful to apply 80-100 kg N/ha split between sowing and top-dressing at around 4-6 weeks after emergence. The balance of the nitrogen need is usually supplied from nutrients available in the paddock. Leaf testing during early growth will offer further guidance on N needs.

Potassium

May be applied in areas where levels are typically low. There is good evidence that adequate K nutrition will aid the prevention of plant diseases and help crops ‘keep’ for longer. High application of K may be at best wasteful or contribute to an imbalance of magnesium.

Sulphur

S is rarely needed for forage brassicas. High levels may induce red-water in grazing stock through the crop’s accumulation of SMCOs. Avoid high rates of S unless soil test levels are particularly low.

Molybdenum

Mo is an essential nutrient for the development of brassicas. May be required where levels are historically low, Mo has not been applied for some years or pH is low. Usually apply in conjunction with Cu for animal health. Liming may increase the availability of Mo.

Boron

May be beneficial on sites with low levels, or on sites with soil types that are subject to quickly drying out. Apply with care specified rates as high levels may create stock toxicity.

Crop requirements for 10t DM/ha 10 t/ha DM

N 250kg

Example fertiliser program P

30kg

K

Fertiliser*

N

P

K

150kg

Pre-sow 350kg/ha 19:8:17:1

67kg

28kg

60kg

@4 wks 125 kg/ha Urea

57kg

-

-

Soil/ mineralisation contribution#

126kg

2kg

90kg

This is an indication of the nutrients held up in the crop to produce at 10 t DM/ha brassica plant canopy. Not all of the nutrients need be applied as fertiliser, as the paddock will often supply much of the nutrition. A soil test and sound agronomic interpretation should be used to develop a specific program.

* Plus trace elements #From background paddock nutrients

The balance of crop requirements may be provided by the back-ground fertility in the paddock. Often direct drilled paddocks may need higher levels of fertiliser, especially N, as compared to cultivated paddocks. This is related to the fact that cultivation increases the rate of oxidation and hence break-down and release of some nutrients. Avoid sowing more than 25kg/ha of N or P in contact with the seed as fertiliser burn may result in a lower rate of establishment. Adopt pre-spreading instead or split the fertiliser need between spreading and drilling. Consider keeping K levels up for longer maturity/keeping resilience and general good crop health. For multiple-graze crops, a top-dressing of N or mixed NPK fertiliser may be prudent in many circumstances. As the crops are grazed ‘in-situ’ a high proportion of the fertiliser is retained on the paddock, which may be considered a capital application, and will contribute positively to following crops or pastures. It is strongly recommended to take a soil test through an accredited laboratory and obtain good advice to set up a fertiliser program.


Brassica and Summer Forage Crop Guide

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FORAGE RAPE Brassica napus

Rape is a fast-maturing leafy, single or multi-graze crop that can be sown for summer, autumn or winter feed. Rape has a broader adaptation than most other brassicas and can be used with great success in drier areas with warmer summer temperatures, particularly if sown in late winter/early spring and established prior to the onset of summer. It typically has higher protein and dry matter than turnips. There is a wide spectrum of varieties available from shorter stature, hardier types suitable for extensive systems to higher yielding taller types intended for intensive dairy and beef operations.

Fit & use pattern Rape can be sown from early spring to late summer depending on its use. Usually rape is sown as a lone stand, but may be used in combination with other summer forages such as millet and chicory, or often sown in early autumn for winter feed in combination with annual or Italian ryegrasses with good results. Rape’s feed value is high, but usually the crop must be mature before grazing, approximately 10–12 weeks after sowing. In some circumstances, and certainly with older cultivars, it is necessary to wait approximately 14 weeks for the crop to turn bronze prior to offering to animals.


Brassica and Summer Forage Crop Guide

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INTERVAL 550mm+

• • • • • Most soil types

5.5–8.0

LEAFMORE 550mm+

Most soil types

5.5–8.0

Tall, fast establishing rape Useful for both summer and winter feed Offers valuable feed opportunities for farmers wanting to finish stock Suitable for autumn and spring sowing Can be used as a summer crop where 1 to 2 grazings are required or as a late-spring/early-summer sown crop • Strong frost tolerance and resistance to powdery mildew.

• • • • • • • •

Cross between Winfred and Emerald Superior cold growth habit and frost tolerance Vigorous establishment and hight yielding Early maturity to first grazing (8–10 weeks) Suitable for autumn and spring sowing Excellent regrowth for up to 4 grazings Multi-stemmed with semi-erect growth habit High forage quality with good leaf to stem ratio and high dry matter.

Sowing Rates Irrigation / high input

3–4kg/ha

Good dryland

3kg/ha

Marginal dryland

2-–3kg/ha

In a forage mix

0.5–2kg/ha

SOWING & GRAZING WINDOW

Spring sown Autumn sown

Plant Graze Plant Graze

Aug

Sep

Oct

Nov

Dec

u

t

u

Jan

Feb

Mar

Apr

May

Jun

t

t

u

u

Jul

Aug

Sep

t

t

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable


Brassica and Summer Forage Crop Guide

10

BRASSICA CROP PROTECTION For good reliable results, brassica crops should be grown on a solid program that addresses threats from weeds and pests. The planning for a crop should include some anticipated prior knowledge of the likely weed spectrum and probable pest issues. The following outline crop protection program is intended for guidance and general principles. Seek specialised advice for your situation. Inspect your crops regularly, and at least twice weekly in establishing crops, especially during warmer months when pests are typically most active and in larger numbers. Importantly, note that synthetic pyrethroids (SPs) and many organo-phosphate (OPs) have wide-spread resistance from Diamond-back moth (DBM, Plutella) and Cabbage white butterfly (CWB). The new option Success™ Neo Insecticide containing Spinetoram is an excellent tool for in-crop caterpillar control. Weed control options have been very limited, but the release of ForageMax™ with Arylex™ active herbicide has offered productivity gains in rape and turnips.

Success™ Neo Insecticide Insecticide for forage brassicas

ForageMax™ with Arylex™ active herbicide Broad-leaved herbicide for forage rape & turnips

✓ Diamondback moth ✓ Cabbage white butterfly ✓ Cabbage cluster caterpillar ✓ Cabbage centre grub ✓ Heliothis ✓ Native Budworm

✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

• • • •

No known insect resistance. 7 day stock withholding period for grazing. No more than 2 applications per crop. Read label for specific instructions and registration details.

Success™ Neo Insecticide and ForageMax™ with Arylex™ active herbicide are registered trademarks of Dow AgroSciences

• • • •

Capeweed (Arctotheca calendula) Cleavers (Galium aparine) Deadnettle (Lamium amplexicaule) Fat hen (Chenopodium album) Fleabane (Conyza spp) Fumitory (Fumaria spp) Mexican poppy (Argemone Mexicana) Milk thistle (Sowthistle) (Sonchus oleraceus) Rough Sowthistle (Sonchus asper) Prickly lettuce (Lactuca serriola) Volunteer legumes Many other weeds Apply from 4–8 leaf stage in rape and turnips. 14 day stock withholding period for grazing. No more than 2 applications per crop. Read label for specific instructions and registration details.


Brassica and Summer Forage Crop Guide

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It is highly recommended that a competent agronomical service be engaged to assist with making chemical recommendations and that suitable equipment and application techniques are employed.

Preparation

Sowing

Knock-down herbicide + knock-down insecticide:

Use seed coated with an approved insecticide. This will aid early control of some sucking and biting insects including mites.

e.g. glyphosate + chlorpyrifos Kill off existing cover and remove residual pest populations. This is especially important for many caterpillar pests. If fallowing, consider a second application again, immediately before seeding.

Consider using a molluscicide (slug-bait) with the seed, especially in damp conditions, clayey or loamy soils, where direct drilling or where there is some plant trash remaining. Hatchling slugs and snails can wipe out emerging crops, and do not need to emerge from the drill-row themselves.

Establishment Check for cutworms and slugs/snails as the crop emerges. DBM will start egg-laying from the cotyledon stage of crops, and emerging grubs can quickly take out a very young crop. Apply selective insecticide once the eggs hatch and grubs start feeding. This may be 10–14 days after the crop is sown. Often a second spray is warranted 3–4 weeks later: continue monitoring as egg-laying will continue through dry, warm weather especially. Selective insecticides are highly preferred as they tend not to target beneficial and predatory insects. Once crops have reached at least 4 leaf stage, check to see if weed control is needed. Selective grass herbicides may be used early, but check the grazing program as stock withholding periods may be long. Rape and turnip crops may have many broad-leaved weeds selectively controlled with ForageMax herbicide. Particularly dry-stressed crops may be subject to an early aphid attack. Control should be taken with urgency as the aphids may carry a number of brassica viruses that will further stunt the crop. Continue to monitor and address slugs or snails in required.

Later crop management Continue to look for cutworms, heliothis, DBM and CWB. Well-grown crops will cope with a small population of grubs, but more than one or two per plant may constitute an economic threat in most circumstances. Aphids are relatively common in maturing crops. If there are just a few plants on the dry edge of a paddock, it is rarely worth addressing. Downy mildew may affect crops as they mature and powdery mildew becomes active in older crops in mid-late summer. Mildew can affect animal acceptance. Sowing resistant varieties and sound crop nutrition will help. Fungicide options are limited. Significant brassica diseases are described on page 23. As temperatures cool through autumn insect activity declines and later planted crops will have fewer issues with caterpillar and grub pests. Slug and snail activity may however increase with cooler, damper conditions.


Brassica and Summer Forage Crop Guide

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LEAFY TURNIPS Brassica campestris spp.rapa

Leafy turnips are a quick maturity rape/turnip hybrid cross. These are also known as hybrid leafy turnips or hybrid forage brassicas. They will grow a small bulb with high leaf yields and can provide quick feed, often in 6-8 weeks. With good grazing management leafy turnips can offer multiple grazings. Leafy turnips can be sown from September to April.

Fit & use pattern Leafy turnips can be sown from September to April. They are often used as a sole stand although it is often rewarding to sow with companion species.

Spring sown

Millet, chicory, white & red clover, plantain

Autumn sown

Annual or Italian ryegrass, forage oats, forage barley, chicory

Similar herbicide techniques as per conventional rape may be used; pre-emergence options may be useful in some circumstances. Fertiliser requirements are similar to that for other brassica forages. Leafy turnips should be grazed once they achieve around 30–40cm in height, or about 8–10 leaves. Repeat grazings are possible each time the crop returns to the desired height. To achieve rapid regrowth, grazing down to a range of 5–10cm is recommended. If grazed lower, regrowth may be slower. If left longer, regrowth may occur from the stem rather than bulb and be restricted. It is common to achieve at least 3–4 grazings under reasonably well managed situations.

FALCON 500mm+

Falcon leafy turnip has many applications: • • • •

Quick feed in 6–8 weeks: Suits sowing from early spring to mid-autumn Excellent companion plant for spring or autumn sown annual forages A break crop as part of a pasture renovation program May be used in a mix with other species for specific outcomes, although has excellent feed quality attributes when sown as a sole variety • Very suitable for dairy, finishing and extensive sheep and cattle enterprises.

Most soil types

5.5 – 8.0

Sowing Rates

Falcon leafy turnip offers advantages over alternatives:

High rainfall / irrigated

5–8kg/ha

Good dryland

4–5kg/ha

Marginal dryland

2–3kg/ha

In a forage mix

1–2kg/ha

• • • •

10–15% yield advantage over older varieties Improved early vigour High stock acceptance and improved palatability Excellent recovery from grazing.

Sowing Time Early spring areas

Aug – Oct (Ideal time for setting up early summer feed)

Late spring areas

Oct – Dec (Quick option to start up a summer feed program)

For fast autumn feed

Feb – April (Fast autumn feed and multiple winter grazings)

SOWING & GRAZING WINDOW

Spring sown Autumn sown

Plant Graze Plant Graze

Aug

Sep

Oct

Nov

Dec

u

t

u

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

t

t

u

u

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable

Sep

t

t


Brassica and Summer Forage Crop Guide

TURNIPS

13

Brassica rapa

Summer turnips offer nutritious, highly palatable feed. They are a vigorous, fast maturing crop and may be grazed 10–12 weeks after sowing. With good crop nutrition and management, crops may hold on and maintain their quality for a considerably longer period. Slower to mature, keeper types are also available, and are more typically used for grazing in later autumn and winter. Tankard-shaped varieties are suited to dairy and beef operations as they are often easily pulled out during grazing. Globe-shaped types generally hold better in the ground and can be used for sheep as well as cattle.

Fit & use pattern Turnips are best sown under good nutrition through spring and early summer, although late summer crops may also prove very useful. Both the leaves and the bulbs are consumed. A higher plant density will offer earlier grazing and more leaf, but lower drought tolerance, while sparser crops have a longer period until maturity, larger bulbs and greater tolerance of dry periods. With close management re-grazing after defoliation is possible, but usually turnips are grazed on a break for highest possible utilisation through summer and early autumn. Turnips are also an excellent option for providing high volume of forage during a pasture renewal program. Break-fence grazing, weed control and attention to crop nutrition provide a good basis for seed-bed preperation for a subsequent pasture or autumn crop.

DYNAMO 550mm+

Most soil types

5.5 – 8.0

Dynamo is a globe-shaped turnip providing a high-yielding summer crop. It offers large volumes of low cost, quality feed when pasture quality and quantity declines. Dynamo produces a good level of bulb (around 45% of total yield), giving it an advantage in seasons when high levels of leaf diseases or pests are present. Ready to graze 10–14 weeks after sowing. Suits dairy systems, sheep and cattle. Sowing Rates Irrigation / high input

3–4kg/ha

Good dryland

3kg/ha

Marginal dryland

2–3kg/ha

In a forage mix

0.5–2kg/ha

SOWING & GRAZING WINDOW Sep Plant Graze

Oct

Nov

Dec

Jan

Feb

u

t

u

Mar

Apr

May

t

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable

Jun

Jul

Aug


Brassica and Summer Forage Crop Guide

14

SWEDES

Brassica napus var. napobrassica

Swedes are a summer planted, slow maturing winter crop and can offer the highest potential total dry matter yield among the brassica options with excellent feed quality. Swedes will maintain their bulb quality better than turnips, especially in cold conditions. Swedes will respond well to rising levels of fertility but may be considered a good option for extensive grazing areas with modest inputs.

Fit & use pattern Swedes are sown from November to January to provide autumn and winter feed for sheep and cattle. The bulbs keep very well and can be an excellent option for feed budgeting in areas with cold winters. Typically swedes suit elevated areas of semi-intensive cattle and sheep production, although can be used with good results in dairy and meat production. Swedes are slow growing, but good feed on offer after 20–24 weeks. Swedes also have some capacity for healing over if the grazing was incomplete or interrupted. Like all brassicas, swedes have best utilisation under break-fence management.

INVITATION 550mm+

Most soil types

5.5 – 8.0

Invitation is a late maturing yellow fleshed swede, with high bulb and leaf yield. Invitation produces excellent total DM yields with good dry rot tolerance and strong resistance to powdery mildew. Invitation produces high leaf yields (around 30% of total yield), which is helpful when introducing swedes into an animal’s diet, particularly for younger stock. Invitation has shown high bulb keeping and leaf retention ability in trials, helping maintain its feed quality and quantity through to the end of winter. Sowing Rates Irrigation / high input

2–3kg/ha

Good dryland

1.5–2kg/ha

Marginal dryland

1–1.5kg/ha

In a forage mix

0.5–1kg/ha

SOWING & GRAZING WINDOW Sep Plant Graze

Oct

Nov

Dec

Jan

Feb

u

t

Mar

Apr

May

Jun

Jul

Aug

u

t

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable


Brassica and Summer Forage Crop Guide

KALE

15

Brassica oleracea

Kale is a long maturing crop that can provide very high yield at modest cost. It is an erect plant, with the stem providing a high proportion of the feed on offer. Feed value is usually somewhere between that of turnips and rape. Kale keeps well in the cooler months and grazing time can be flexible. Most varieties are quite tall and suit cattle only.

Fit & use pattern Kale is normally sown from late October to January to provide feed from mid-autumn through winter. There is re-growth potential if 100–150mm of stem is left, although the first grazing constitutes the main target yield. There are hard-stemmed and soft (marrow) stemmed types available. Hard-stemmed types often have poor utilisation unless sown at very high plant densities, whereas marrow-stemmed types are somewhat higher in overall feed quality, stock acceptance and utilisation. Softstemmed varieties may also be considered for silage (kaleage). Kale is resistant to club root and is a good option for a second brassica in a rotation.

CALEDONIAN 650mm+

Most soil types

5.5 – 8.0

Caledonian is a tall, high yielding kale that provides excellent winter feed for cattle. Caledonian is a marrow stem variety, with soft nutritious stems that offer better ME and greater utilisation than other tall Kales. The main difference is in the lower part of the stems. It has good winter hardiness and, like all kales, has good club root tolerance. Maturity in 5–7 months. Sowing Rates Irrigation / high input

5–6kg/ha

Good dryland

4kg/ha

Marginal dryland

3kg/ha

In a forage mix (rare)

1–3kg/ha

SOWING & GRAZING WINDOW Sep Plant Graze

Oct

Nov

Dec

Jan

Feb

u

t

Mar

Apr

May

Jun

Jul

Aug

u

t

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable


Brassica and Summer Forage Crop Guide

16

BRASSICA GRAZING MANAGEMENT Brassicas require careful grazing management, particularly while they are being introduced to stock. Most animal health issues happen in the first few days of feeding.

Introducing animals Animals coming from other feeds need time to adapt to a brassica diet, so introduce them slowly from an initial 1–2 hours a day up to their maximum daily allowance over 7–10 days. This helps prevent problems like scouring, acidosis and nitrate poisoning due to a sudden change in diet. During the introductory period, animals should be initially put on to the crop when reasonably full, to slow the rate of intake, until they have adjusted to the diet. The brassica portion of the diet should not exceed 70–80% of total intake, while lactating dairy cows should not exceed 30%. Where brassicas make up the majority of daily intake, a source of fibre (e.g. hay, straw, silage) should be offered to slow the rate of brassica intake, and help maintain rumen function. It is best to feed this fibre source before allowing stock access to the brassica. Stock may also need additional trace elements such as copper, selenium, iodine and magnesium. Check with your local vet for details. Always offer plenty of clean water to ensure DM intakes do not drop.

Transition around calving Feeding pregnant stock brassicas too close to giving birth can lead to metabolic problems. Ideally, animals should be transitioned back to a grass based diet two weeks before calving.

Monitor stock Stock should be regularly monitored while grazing brassica crops to check if they are meeting condition/live-weight targets. If animal performance targets are not being met consider if there are any underlying health issues or if not, DM allowance may need to increase. Feeding levels should be monitored to make sure animals are receiving enough. (Check the amount of feed still available in the afternoon, after morning break shifts). Occasionally, some animals, no matter how much brassica they are offered, simply do not do well on these crops. These animals should be removed and put back onto pasture.

Crop utilisation Utilisation of brassicas is highly variable, depending on the soil type, climatic conditions, brassica type and desired animal performance. There is generally a trade-off between

utilisation and animal performance. Where high weight gains are required, lower utilisation must in many cases be accepted. Utilisation of brassica crops may range from less than 50% to more than 90% on turnips and soft-stemmed kales. As a rule of thumb typical utilisation of brassicas in dry conditions is 80% and if increased live-weight gains are required, utilisation of 70% or less should be accepted. In mixed grazing it may be useful to give a mob of fattening lambs the pick of the crop at a low utilisation % and then offer the remainder to a dry stock class. Break feeding is the best method of feeding brassicas, as it allows a higher level of control over animal intake, utilisation, crop regrowth potential and how long the crop will last for. Offering long faces of the crop, with small, frequent shifts so that actual break size is minimised, results in less trampling and wastage, and higher crop utilisation. Where a crop has regrowth potential, such as a rape or leafy turnip, back fencing is recommended to maximise yield potential.

Crop allocation It is important to set targets for stock performance so the correct feeding level can be calculated for brassica crops. To check allocations are correct, grazing needs to be monitored, because stock are the final judge as to whether estimates of DM yield, break size and crop utilisation are correct. Making the stock work to eat the remaining stem or bulb residue means the allowance is too low, and they will likely not gain condition. Accurate yield estimates, break measurements, and estimating crop residuals are essential for allocating the desired animal allowances.


Brassica and Summer Forage Crop Guide

BRASSICA ANIMAL HEALTH Brassicas can sometimes cause animal health issues, but these can be minimised or avoided through good management. Animal health should be closely observed, especially when stock are being initially offered a new forage crop. Most problems are observed within a few days of commencement of grazing, especially if animals are introduced when they are hungry. Stock should be closely monitored, have access to a reliable supply of good quality drinking water and have the option of run-off areas. Animals should be removed if any problems occur. Clinical signs of distress may also indicate a more broad-spread subclinical issue.

Rape scald / photo-sensitivity The reddening of skin on ears and faces of lambs grazing rape. To minimise this ensure the crop is fully mature prior to grazing, i.e. purple colouring can be seen on the edges of rape leaves. Animals showing signs of scald should be removed from crop and offered shade. This condition may be exacerbated by feeding crops off too early, as too high a percentage of the diet, under-stocking, and the possible complications from issues such as mycotoxins from facial eczema, mouldy fodder or infected grain. Green topped turnips may make stock more susceptible than purple types.

Red water Caused by the SMCO (S-methylcysteine sulphoxide) content of brassicas. It is most common in kales, which contain the highest SMCO levels, but all brassicas contain SMCO. Animals with red water pass damaged red blood cells in their urine, which can lead to loss of appetite or poor growth rate. Care must be taken with sulphur based fertilisers which elevate SMCO levels. The SMCO level increases when plants flower. Sheep are more tolerant of SMCOs than cattle. Avoid high rates of sulphur in fertiliser programs, particularly with kale crops.

Bloat Bloat can occur when feeding frosted brassica crops, as plant material breaks down more quickly. This can be avoided by shifting breaks after the frost clears. Bloat may either be in the common ‘frothy’ form, or gaseous form due to animals having access to a fast intake of high quality feed. The overall ration should also be considered, along with offering a slow introduction to forage crops, introducing animals to the crop after they are reasonably well fed, and providing alternative sources of fibre to assist rumen function.

Nitrate poisoning Can occur in any type of brassica crop with high levels of nitrate, and can cause stock death. Test kits are available from vets. Introduce stock slowly to the crop and supply alternative feed such as straw, hay or silage to reduce the rate of intake

Brassica grazing & animal health checklist • Wait until the crop has matured – typically purpling of the margins of mature leaves, after 8–10 weeks or so. • Introduce animals slowly over a period of 7–10 days. Break fencing or a small paddock may assist. • Animals may not have grazed brassicas before, and may take a few days to start accepting it. • Typical % of diet is 70-80% maximum as brassica for beef cattle and sheep and dry dairy stock, 30% maximum for lactating dairy stock. • Have ample clean drinking water available • A source of fibre may be needed to assist rumen function - e.g. straw, dry feed, silage. • Consider back-fencing or rotational grazing, with areas rested to allow potential re-growth. • Animal performance may benefit from additional trace elements such as Cu, Se, I, Mg • Stock should be up-to-date with vaccinations. • Monitor stock regularly and provide run-off areas or an opportunity to readily remove stock if problems arise.

of the brassica. Nitrate issues may occur on many forage types and is often associated with crops grown on or after high legume pastures, ex-vegetable production paddocks with residual fertiliser or after a long dry period with high N mineralisation. Cloudy, over-cast conditions can create an increased risk. Nitrate levels typically decrease during the day, so feeding stock later in the day may reduce the risk, as well as ensuring animals are introduced to new, lush crops in a gradual fashion and when they are less hungry.

Acidosis / Grain poisoning Acidosis typically occurs where stock are being offered grain or other high energy feed at the same time as grazing brassicas. Acute cases have occurred on rape crops, especially where the crop green leaf has been consumed, leaving the stalks and leaf-ribs behind, and stock reintroduced to consume a high proportion of the remnant leaf petiole which is very high in sugars. Stock failing to meet performance targets may have a sub-clinical level of acidosis.

17


Brassica and Summer Forage Crop Guide

18

BRASSICA CROP ALLOCATION Estimating the yield of a brassica crop is critical for allocating the correct break size and animal allowance. Knowing the number of stock to be fed, their intake requirement, likely percentage utilisation, crop face length and crop yield is vital. A similar approach may be used for other forages such as cereals, chicory, millet, sorghum and pastures generally.

Fresh weight Joining both ends of a 3.54m length of poly pipe will give a circle with an area of 1m2. This circle should then be placed over representative areas of the crop. Everything within the circle should be harvested, placed in a bag and weighed to give the fresh weight. For bulb crops sown in rows it may be more appropriate to harvest part of a row. Row width will determine length sampled, e.g. for 30cm wide rows, a 3.33m row sample length will give an area of 1m2. Sampling should be repeated at least five times across the paddock to gain an average fresh weight. The more variable a crop the more samples need to be taken. The fresh weight may be multiplied by 10,000 to convert from kg/m2 to kg/ha.


Brassica and Summer Forage Crop Guide

19

Dry matter % (DM) Three samples per crop should be taken to determine the DM%. For each sample take some whole plants (representative of the crop) and chop into small segments. Weigh the sample to determine fresh weight and then dry at 60-90oC for 24-48hrs, until the weight stops falling. Then weigh the dried sample.

Crop yield (kg DM / ha)

Example: The dry matter % can be calculated by dividing the dry weight by the fresh weight: Fresh weight of sample Dry weight of sample Dry matter %

= = = =

112g 16.8g 16.8g ÷ 112g 15%

Example:

Once the fresh weight yield and the dry matter % are known the crop yield in kg dry matter per hectare can be calculated.

Fresh weight yield = Dry matter % = Crop yield (kg DM/ha) = = = =

90,000kg/ha 15% Fresh weight (kg/ha) x Dry matter % (DM%) 90,000kg/ha x 15% (0.15) 13,500kg DM/ha 1.35kg DM/m2

Dairy example of crop allocation A 5ha (200m x 250m) paddock of rape with a yield of 13.5 t DM/ha ( = 1.35kg DM/m2) 180 cow herd with a daily intake of 18kg DM/head/day, being fed 30% of their ration as rape at 80% utilisation. Each cow (on average) needs

18kg DM/hd/day

% of ration allowed

30% (0.3)

Each cow therefore needs to eat

18kg DM x 30%

% utilisation

80% (0.8)

= 5.4kg DM rape/hd/day

Each cow needs to be offered

5.4 ÷ 80%

crop yield

1.35kg DM/m2

Each cow needs to be offered

6.75 ÷ 1.35

= 5m2 rape crop area/hd/day

180 cows need to be offered

180 x 5

= 900m2 rape crop area/hd/day

If fenced along the 200m face, break width

900 ÷ 200

= 4.5m break width

= 6.75kg DM rape/hd/day

In this example, a 5ha rape crop with 13.5 t DM/ha yield will feed 30% of the ration for 55 days.

The following equation summarises calculation of break width:

Break width m =

( animal requirement DM/hd/day ) x ( % of ration allowed ) x ( number of stock ) ( utilisation % ) x ( DM yield kg/m2 ) x ( length of break m )

Calculations may be performed for all situations. Typical brassica % of diet is 70–80% maximum for beef cattle and sheep and dry dairy stock, 30% maximum for lactating dairy stock. Many crops will continue growing during the grazing period and yield may need to be re-assessed at appropriate intervals. In lax-grazed, extensive situations without break fencing, allow for some concurrent growth during the period of grazing.


Brassica and Summer Forage Crop Guide

20

VERSATILITY AND PALATABILITY OF FORAGE RAPE Versatility and palatability of forage rape Forage rapes have a very broad application. Whilst often used as a spring-summer and summer-autumn crop in southern summer-mild areas, rape has good application as an autumn crop in many production zones, particularly in summer dry areas that are often seeking quick, economical, quality feed in the cooler months. The team at the Heritage Seeds’ research station at Howlong NSW has recently conducted some trial and demonstration work to help ascertain the potential role and benefits of rape as an autumn-sown winter forage crop. For further information contact your Heritage Seeds' territory manager.

Yield and palatability trial 2014 • Replicated plot trial (4 reps) planted at Howlong on 23rd April 2014 • Sowing rate: 4kg/ha • Excellent planting conditions, followed by good growth conditions through autumn-early winter • Entries: Interval, Leafmore, Greenland and Winfred • 13th August (16 WAS) – trial cut to measure yield at a simulated first grazing opportunity (half plot), then sheep introduced to graze the site including the un-cut half of plots with a grazing preference score taken • 15th October (25 WAS) – second cut to measure yield at a simulated second grazing.

Half-plots harvested for dry-matter yield

DM Cut 1 13/08/14

Sheep introduced to graze remaining plot area

Grazing Preference Score 1 to 9=best 15/08/14

DM Cut 2 15/10/14

Dry Matter Total kg/ha

Variety

kg/ha

Sig*

Rank

Score

Sig

Rank

kg/ha

Sig

Rank

kg/ha

Sig

Rank

Interval

3216

a

1

8

a

1

2149

b

3

5365

b

3

Greenland

3004

a

2

3

c

4

3688

a

1

6692

a

1

Leafmore

2199

b

3

6

b

2

3220

a

2

5419

b

2

Winfred

1481

c

4

4

c

3

2051

b

4

3532

c

4

Trial Mean

2475

LSD (5%) %CV

5

2777

5252

418

1

690

671

9

9

13

7

*Entries with the same letter are not significantly different


Brassica and Summer Forage Crop Guide

21

A good quality trial (low CVs) which has produced a strong data set that supports Interval and Leafmore for use as autumn planting options. There are definitely different grazing preferences amongst sheep for the different varieties but if pushed hard enough the sheep did eat all varieties.

Interval rape post-grazing – high utilisation

Greenland rape post-grazing – lower stock acceptance

INTERVAL

LEAFMORE

Highest yield at Cut 1 & very high stock preference. Moderate yield at Cut 2 with good utilisation – overall high yield & high utilisation. Very good choice for early high yields and palatability.

Moderate yield at Cut 1, with good stock acceptance. Good yield at Cut 2 with good utilisation – overall yield was high. Good all-round performance with improved capacity to recover for later yield, thus exhibiting superior multi-graze traits.

The other entries: Greenland exhibited good yield but poor stock acceptance. Winfred has been outclassed in most respects.


22

PHOTO CREDIT: CESAR AUSTRALIA

(many species)

Slug & Snails

PHOTO CREDIT: CESAR AUSTRALIA

(several species)

Mites (RLEM, BOM, TSM)

PHOTO CREDIT: CESAR AUSTRALIA

Elateridae spp & Gonocephalum spp.

Wireworm & False Wireworm

PHOTO CREDIT: CESAR AUSTRALIA

Helicovera spp.

Heliothis

PHOTO CREDIT: DONALD HOBERN

Diarsia intermixta

Chevron Cutworm

Agrotis spp.

Greasy, Pink, Brown (True) Cutworms

(many species)

Aphids

Plutella xylostella

Diamondback Moth (DBM)

Pieris rapa

Cabbage White Butterfly (CWB)

Cultivation and knock-down insecticide before sowing. Monitoring of early crops stages. Chemical control. Cultivation and knock-down insecticide before sowing. Monitoring of crops through lifespan. Chemical control. Cultivation and knock-down insecticide before sowing. Monitoring of crops through lifespan. Chemical control.

Eggs laid in moist, loose soil. Young larvae may chew foliage, larger caterpillars cut stems of seedlings at ground level. Mostly feed at night. Also feed on other crops including establishing pasture. May be found virtually year-round. Eggs dome-shaped and ridged, laid in small clusters. Usually do not cut young foliage at the base, instead eat foliage or roots and bulbs. Usually found at the base of plants during the day. Also feed on many other crops. Eggs single or in small clusters. 1mm diameter, white, domed become orange-brown prior to hatching. Will chew large holes in leaves. Also feed on many other crops

Often one of 3-–4 species, including Bogong moth. Adults grey-brown from 36 to 45mm wingspan. Larvae up to 50mm long, grey to dark grey, often pinkish, plump, found just at or below soil surface, often curled up. Males brown-orange, females mauve, to 38mm. Caterpillars quite fat, to 30mm, shaded dark-brown-black on top and pale underside.

Adults brown with a light pattern to 25mm. Wings held flat. Caterpillar larvae from 1.5mm to 50mm. Light brown with dark heads, developing stripes as they age.

Use seed treated with correct systemic insecticide, monitoring, and an integrated spray program. Sow seed with an approved slug-bait in problem situations. Montitor and re-apply if needed. Cultivation will assist initially.

Especially problematic in emerging and seedling crops. Mites will suck the nutrients from swelled seeds, and young plants. If plants are older, a typical whitening/silvering of part or all of the leaves is evidident. Newly hatched, very small slugs may feed within drill-rows and not emerge to take surface baits. Damage may occur to all parts of plants at any stage. Seedlings especially vulnerable. Older leaves typically have oblong windows rasped out.

Red Legged Earth Mite, Blue Oat Mite, Two Spotted Mite.

Slugs may be black-grey to yellow-brown, from1mm to 35–50mm. Eggs often clusters in soil and trash 1–1.5mm soft, white-transluscent. Snails of various sorts including garden snails and conical (pointed).

Cultivation & fallowing. Knoock-down insecticides. Suitable seed coating insecticide.

Use seed treated with correct systemic insecticide, monitoring, and an integrated spray program.

Initially aphids cause damage through sucking the sap of especially younger leaves, often in stressed plants. Aphids are also important vectors of many harmful brassica viruses.

Grey Cabbage aphid and Green Peach aphid are the most prevalent. Wingless adults are about 2mm long they range from yellow to dark green to grey. Winged adults may also be present, often a darker colour.

Eggs laid on or just below surface. Eat germinating seeds and roots of young seedlings. Usually in upper 5cm of soil. Adults may chew and ringbark seedling stems. Often a pest of weedy or trashy sites, especially lo/no till situations.

Monitoring and an integrated spray program. SP and OP insecticides are largely ineffective.

Females lay about 100 oval yellow eggs, usually on the underside of leaves. Hatching the grubs enter inside the leaf until around 3–4mm long. Larvae feed only on brassicas. Badly affected crops appear to have a 'shot-gun' effect.

Small slender grey moth to about 10mm long. Grubs up to 9-–12mm long are grey-green, slender and very wriggly.

Wire-worm: Dark-grey-brown-black oblong. Also known as click beetle. False wireworm: Adult similar colours but oval shape. Cream-yellow-golden larvae. Distinctly segmented body.

Monitoring and an integrated spray program. SP insecticides have limited value.

Females lay eggs on the undeside of leaves. Initially creamywhite and turning orange before hatching. Only attack plants in the brassica family. Usually slower to damage crops than DBM, but can be devastating in younger crops.

White (male) to cream (female) butterfly up to 50mm wingspan. Caterpillars are bright green, chubby, slow and 2–30mm long, pupae 15mm long and grey-brown.

CONTROL

DAMAGE

DESCRIPTION

COMMON BRASSICA PESTS

Brassica and Summer Forage Crop Guide


23

Images courtesy of Agriseeds NZ and Cesar Australia.

Manganese toxicity

Molybdenum deficiency

Boron deficiency

Leptosphaeria maculans

Black Leg (Dry Rot)

Erysiphe spp.

Powdery mildew

Sclerotinia spp.

Sclerotinia (white mould)

Plasmodiophora brassicae

Club root

Peronospora spp.

Downy mildew

Pythium spp., Phytopthora spp., Rhizoctonia spp.

Damping Off

Longer rotations. Improve soil structure / drainage. Reduce plant trash. Control weeds prior to sowing. Fungicide seed treatment. Cultivation, weed control, good crop rotation. Grazing may limit spread. Fungicide options may be available. Crop rotation - avoid tight or back-back brassicas. Increase soil pH. Improve drainage. Kale is more resistant than other brassicas. Longer crop roations. Lower plant density / wider row-spacing. Maintain crop nutrition to preserve older leaves. Defoliate with grazing. Newer varieties have improved tolerance. Maintain good crop moisture and nutrition. Fungicide options may be available. Fungicide seed treatment. Avoid tight crop rotations and canola stubbles. Fungicide seed treatment. Foliar fungicide options may be available but rarely required. Select sites with good moisture holding capacity. Include B in planting fertiliser at appropriate rates. B foliar sprays. Mo program on farm. Seed treatment that includes Mo. Mo foliar sprays. Improve soil pH to at least 6.0, pref 6.5+ Site selection. Drainage. Liming to improve (lift) pH.

Spores may remian in soil or plant trash, or hosted by weeds. Rapid build up in moist, mild weather. Low pH. Tight brassica crop rotations. Brassica weeds not controlled in pastures/other crops. Wet conditions favour spread. Uncertified, infected seed. Tight crop rotations. Moist, cool conditions. Heavy crops with poor air circulation. Older leaves dying off. Most prevalent in older varieties. Weeds & pest debris will host over-winter the pest. Usually appears late summer & autumn in drought-stressed crops. Wet, windy weather. Spread by wind and in water sources. Rarely an issue in true forage rapes. Canola often far more susceptible. Light, sandy soils subject to drying out. Very low or very high pH. B not included in fertiliser program. Acidic soils. Low soil Mo or Mo availability. Mo not applied for some time. Waterlogging/poorly drained sites. Acidic soil / sub-soil. High Mn sites.

May infect seedlings, leaves and stems. Black dots on young leaves, with leaf yellowing and reddening. Older leaves with yellow-tan lesions and black speckling. Grey sprulation on underside of leaves. Leaves may die prematurely, leading to significant yield loss. Tap roots are thickened and distorted, often forming into a large gall. Roots unable to properly access nutrients and water thus plants wilting and not growing, often in patches through a crop. Plants fail to develop and may die. Decaying material at the base of the plant, often older leaves that are senescing. A wet, soft rot with a covering of white cottony fungus. Black sclerotes may be formed. Powdery, white-light grey patches. Largely on upper leaf surface initially then often spreads to entire leaf. Stems may be affected too. Will cause fast, early yellowing of older leaves thus reducing yield and stock acceptance. Plants become stunted and start to wilt. Leaf margins redden and eventually form grey spots with large numbers of black speckles. Stem and stalks develop large bruised brown-purple-black lesions and entire stem may be dark grey-black when cut open. Badly affected plants may fall over. Leaves, petioles and stems become brittle and split or crack easily. Roots may split. Stems and bulbs develop hollow sections. Main growing point may die and plant develop stunted side shoots. Mo needed for nitrogen metabolism, so early signs similar to nitrogen deficiency. Distorted leave margins follow, and they progressively die back. Younger leaves at heart of plant become narrower and more affected as they try to form. Yellowing of the margin of older leaves, and eventual death of leave margin, combined with cupping of leaves. Red-brown mottled inverveinal necrosis, followed by dead patches and black managese spots

CONTROL OR ADDRESS BY

Wet soil / continous wet conditions. Existing weeds and trash harbouring the spores.

CAUSED/FAVOURED BY

Seedlings fail to emerge / rotting of seed; or poor crop emergence with stunted and wilting seedlings. Brown-watery lesions on lower stem. Seedlings collapse and die.

DESCRIPTION OF CONDITION

COMMON DISEASES & DISORDERS OF BRASSICA

Brassica and Summer Forage Crop Guide


Brassica and Summer Forage Crop Guide

24

CHICORY

Cichorium intybus Chicory is a persistent leafy herb typically lasting 2–3 years with a large tap root. It performs best in fertile, free draining soils in regions of greater than 550mm rainfall. It has potential for high dry matter yields of excellent quality with most growth through warmer periods.

Fit & use pattern Chicory is often used as an annual (summer) forage in combination with millet, clover or forage brassicas. Chicory is chiefly used as a spring-sown option, although there are good applications for early autumn sowing. Commander chicory has been developed and selected for high performance situations that demand: • Fast establishment • Outstanding DM Yield • Upright growth habit to enable high utilisation • Low crown to help cope with wet conditions and treading damage • High tolerance of Sclerotinia Root Rot. Whilst there are a number of more prostrate cultivars available, they do not match the yield potential nor have the combination of these attributes. As chicory is largely used as an 8–10 month forage crop, fast establishment, high yield and superior utilisation are the key factors driving performance. Chicory requires a well prepared seed bed and soil temperatures of greater than 10°C for successful establishment. Renewing poor performing paddocks through a chicory break crop also provides an opportunity for multiple-herbicide applications to reduce the burden

of many problem weeds. Chicory does not host many pasture pests, including black beetle or Argentine stem weevil, so it reduces these pests for the following pasture. Chicory contains two defensive chemicals, lactucin and lauctucopicrin, which make it less susceptible to butterfly and moth damage compared with alternatives like turnips. Tuscan red clover and Storm white clover are very good options for spring sowing with chicory.

Grazing management & animal husbandry Once chicory is established at about the 7–8 leaf stage, it can be grazed. Chicory should be rotationally grazed on a 4–6 week rotation and will require added nitrogen for maximum performance. Pre-grazing covers should exceed 25cm (~2800–3000kg/DM/ha), aiming for a 5cm (1000kg/DM/ha) post grazing residual. At 2800kg/DM/ha cover chicory plants have replenished taproot reserves to fuel vigorous regrowth after grazing. Back-fencing should be used to protect regrowth where stock are on the same paddock for more than three days. Facial eczema and bloat are not a problem on chicory crops. There is evidence to suggest problems with internal parasites are substantially reduced in stock grazing chicory compared to ryegrass-based pastures.


Brassica and Summer Forage Crop Guide

25

DM Yield combined over four trials 2010–2013 Entry

Establishment

Summer

Autumn

Total

Commander

109a

109a

106a

110a

Punter

109a

110a

104ab

110a

Commander + Tuscan

101ab

109a

105a

109a

Puna II

104ab

105a

106a

105ab

Chico

104ab

104a

100ab

103ab

Choice

97ab

100a

97b

98b

Tuscan

93b

66b

97b

70c

Trial Mean (kgDM/ha)

697

2085

803

3582

LSD (5%)

113

243

71

371

(Relative to trial mean 100%, over four trials Te Awamtu 2010–11 & 2011–12, Cambridge 2011–12, Ashurst 2012–13)

COMMANDER 550mm+

4.5 – 7.5

• • • • • • •

Most soil types

Chicory for high performance sites 15–20% higher yield than prostrate types. Performs all year round including winter Fast establishment and regrowth after grazing Erect growth habit offers high utilisation Responds to summer rain and irrigation Low crown gives good persistence over 2–3 years

Sowing Rates Irrigation / high input

6–10kg/ha

Good dryland

4–6kg/ha

Marginal dryland

2–4kg/ha

In a forage mix

2–3kg/ha + 2–3kg Tuscan Red Clover + 2–3kg Storm White Clover

SOWING & GRAZING WINDOW Jul Spring sown

Plant Graze

Aug

Sep

Oct

Nov

Dec

u

t

u

Jan

Feb

Mar

Apr

May

Jun

Jul

t

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable


Brassica and Summer Forage Crop Guide

26

FORAGE MILLET This name is applied to a number of species of which Pearl and Japanese are the most important. Millet is used as a fast, reliable summer forage that may also be taken for silage or hay. Millets are usually sown in late spring as they do not tolerate frost. They are most frequently used as a summer forage or hay/silage crop in summer irrigated areas, and reliable dryland situations. They can be sown alone or mixed with rape, turnips or chicory. Ready for grazing in about 6–8 weeks after sowing. Millet is very palatable and free of prussic acid.

Pearl Millet – Pennisetum glaucum Pearl millet has the capacity to grow very high forage yields. It is the preferred option for the warm sub-tropical and tropical north as pearl millet generally well-out performs Japanese types. Pearl millet should be sown at a soil temperature of 16ºC and rising, preferable 18ºC.

PEARLER 375mm+

• • • • • •

Most soil types

4.3 – 8.0

Hybrid with improved growth rates and overall yields Very rapid regrowth for subsequent grazing or cutting Similar feed qualities as compared with forage oats Higher protein and energy than other millets No prussic acid: safe for grazing at any stage Smaller seed size with lower sowing rates than other options.

Sowing Rates Irrigation / high input

10–15kg/ha

Good dryland

8–10kg/ha

Marginal dryland

4–8kg/ha

Japanese Millet – Echinochloa esculenta A warm-season, fast growing annual grass. Needs soil temperatures of 14°C and rising for good germination. Often grain producing varieties are referred to as ‘Jap’ Millet. The variety Shirohie has improved forage attributes and is the most widely used for grazing and fodder, and is the most useful variety for southern areas. 375mm+

Most soil types

4.3 – 8.0

Sowing Rates

Sowing Rates in Mixes

Irrigation / high input

20–25kg/ha

Rape Mix

Good dryland

10–15kg/ha

Chicory Mix

Marginal dryland

8–12kg millet, 1–2kg rape/ha 6–10kg millet, 2–4kg chicory/ha

5–8kg/ha

SOWING & GRAZING WINDOW Sep Spring sown

Plant Graze

Oct

Nov

Dec

Jan

u

t u

Feb

Mar

Apr

May

t

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable

Jun


Brassica and Summer Forage Crop Guide

FORAGE SORGHUM

27

Sorghum spp.

Sorghum is a warm climate, annual grass used for strip grazing, silage and hay, capable of very high yields under the right conditions. Irrigation is usually essential for best performance. There are many varieties, hybrids and sub-types – select with care to suit your conditions.

Fit & use pattern Forage sorghum is largely used as a standing feed or summer fodder crop for beef and dairy but there is also some scope for use in sheep enterprises. In southern Australia, cool tolerant varieties should be used. Sorghum should be sown when soil temperature is over 16°C and rising. This is usually in a short period from early November to mid-December, although relatively frost-free areas may sow from around mid-October. Sorghum will often offer a first grazing at around 8–10 weeks after sowing. There is good scope for a second grazing of regrowth or an early autumn silage crop. Alternatively, the crop may be taken around late summer for one large silage or hay harvest. Growth rates will rapid decline with the onset of cooler late autumn conditions.

Grazing management & animal husbandry Crops or regrowth less that 50cm high or under drought or other stresses may create issues with prussic acid poisoning, depending on the condition of the crop and the variety. Avoid offering sorghum to hungry stock, and introduce them slowly. Sulphur lick blocks should always be used, and stock closely monitored initially.

STARGRAZER Sorghum x Sudan 350mm+

Most soil types

4.8 – 7.5

Sowing Rates Irrigation / high input

20–25kg/ha

Good dryland

10–15kg/ha

Marginal dryland

• Medium maturity, flowering in approximately 75 days • Fine stems for quality hay/silage with good palatability and digestibility • Vigorous establishment and growth leading to early grazing or quick lead time to cutting for hay or silage • Higher tillering ability with rapid regrowth for subsequent grazing or cutting • Produces large quantities of highly digestible dry matter • Prussic acid levels are low but caution should be used in early growth or stressed condition.

3–8kg/ha

SOWING & GRAZING WINDOW Sep Plant Graze

Oct

Nov

Dec

u

t

Jan

Feb

Mar

Apr

May

u

t

u Earlier than ideal, but acceptable Optimum sowing time t Later than ideal, but acceptable

Jun


Brassica and Summer Forage Crop Guide

28

MAIZE SILAGE Zea mays

Maize (corn) is a short-term, summer growing annual capable of high yields. There are numerous varieties developed through plant breeding for applications such as grain production, sweet corn, grazing and silage. Silage maize is an important supplement for many intensive animal production enterprises including dairy and beef finishing. The feed characteristics of maize include good energy levels, suitable fibre levels and low protein. These features lend well to maize being used as a supplement to pasture growth through winter and early spring in particular when grasses are often of low fibre content and higher in protein. Similarly, maize fed through this period may allow for increased ease of pasture management and may be used as a tool to enable a greater proportion of pasture to be conserved as silage or hay. Irrigation is usually essential for best performance, however with good varietal selection and appropriate preparation and crop establishment, very satisfactory dryland crops may be grown.

Fit & use pattern Maize is normally sown through October and November, with some later plantings into December. Planting should not occur until the potential for frost has passed, and soil temperatures have reached at least 12°C. Harvesting may take place from mid-autumn through to winter in some cases. With good planning, maize may be grown with an alternate winter cropping program such as annual grasses or cereals through winter and spring. Such programs may offer 15–30 tonnes/ha DM from maize and 10–15 t DM/ ha from the cool-season crop, thereby offering very high overall productivity per hectare over the year. The fodder yield and feed characteristics present the main reasons for growing maize, but other benefits may include efficient use of irrigation water due to a relatively high water use efficiency, as a rotational crop to enable pasture renovation and as an opportunity to vary herbicide routines thus assisting with weed management.

Sowing times, yield potential and varietal selection As the feed quality of maize is critically determined by the development and proportion of the cob, varieties need to be adopted that allow for the best opportunity for cob ripening in autumn. Producers who are in areas where early planting is possible with a long, warm summer and extended early autumn warmth will typically use longer season types to achieve maximum yields. Whilst taller, longer season varieties have a very high yield potential, if the crop fails to mature, then the feed quality will not meet expectations. Hence shorter season varieties are more appropriate for areas with a shorter growing season: yield potential is reduced, but feed quality targets are more easily achieved. Crop preparation, planting, nutrition, care and irrigation requirements are well established. Further detail may be found in the Heritage Seeds’ publication HM-CORN available as a hardcopy or on-line at heritageseeds.com.au


Brassica and Summer Forage Crop Guide

29

Longer season varieties

Mid-season varieties

Shorter season varieties

(CRM >110)

(CRM 95–110)

(CRM <95)

HM-114 (114)

These varieties are capable of very high yields and suit areas that allow for an early planting, reliably warm summers and an extended finishing period well into autumn. Often planting from early October with harvest in mid-late autumn.

HM-152 (97)

Suit southern areas looking for a mainseason, reasonably high yielding crop with good energy levels, or may be used as a shorter option for late planting in warm areas. Usually planting from late October to mid-late November with a mid-autumn harvest window.

HM-114 is a leading option for most growing areas, southern-most & coolest areas excepted. (yellow)

HM-151 and HM-152 are suitable choices for southern-most areas (blue) or as a late plant or early harvest option generally.

HM-151 (88)

For areas with lower available seasonal heat units, late planting or intentional early harvest. Do not have the total yield potential of longer CRM types, but will more reliably finish and consequently offer higher ME% (energy). An early harvest suits many cooler southern regions to allow for prompt pasture or winter crop planting in autumn.


Brassica and Summer Forage Crop Guide

30

MAIZE SILAGE Silage harvesting Timing

Drought-stressed crops

Harvest timing is a compromise between maximum dry matter yield, moisture content and potential feed quality. Ideally, harvest should occur 10–14 days prior to full grain maturity. When the maturing grain reaches the milk line score (MLS) of 2.5, the milk line is halfway down the grain. This often coincides with the cob husk turning from green to white and the dying off of lower leaves. Dry matter production is near to the maximum and moisture content is 63–67%, which is ideal for fermentation.

Drought stressed corn can be harvested at a DM content of 30–40%. When a crop grown with high nitrogen inputs becomes drought-stressed, there may be the risk of nitrate poisoning if the crop is grazed or fed as green chop. Ensiling will reduce this risk as nitrate concentrations fall by 40–60% during the first 3–4 weeks of storage. Harvest should be delayed while plants have green leaf if there is a chance of rain.

Feed quality declines if crops are held over for more than 10–14 days past the optimum harvest time, as yield is lost and the chopped material becomes difficult to compact, resulting in poor fermentation.

Frosted crops After frost damage, the crop will generally have a higher moisture content than is apparent looking at the damaged leaves. Leaves usually constitute 15% of the total dry matter; the remainder of the plant still retains moisture. Frosted maize must be allowed to dry to at least 30% DM. When frost occurs early in grain fill, the moisture content will be too high for immediate harvest and ensiling and could either be cut and fed as green chop or left standing to dry down. When frosts occur close to the intended time of harvest, the crop should be ensiled as soon as possible as leaf loss is likely to be greater and can reduce yield.

TESTIMONIAL “I tried some HM-114 corn as one of my silage options comparing it to some proven competitor lines. Visually it looked far superior under the lateral irrigator, with impressive seedling vigour and uniformity. Very happy with performance in the paddock and the pit and was well superior in ME to the competitor planted directly beside it. I will certainly be expanding my area planted to HM-114 in the future.

TERRY TOUT, DAIRYFARMER – TAMWORTH, NORTHERN NSW.

Cutting height The lower the cutting height, the higher the dry matter yield. However higher cutting heights increase silage quality by increasing the proportion of grain in the chop. As a guide, raising the cutting height from 15cm to 45cm would reduce yield by 15% and raise digestibility by 2%. Also consider the effect of stubble burden for the next crop.

Chop length Aim for a chop length of 10–15mm. Very fine chopping will also crack more grain which is desirable. If harvesting is delayed (DM >38%) the chop length should be set as fine as possible to aid effective compaction.


Brassica and Summer Forage Crop Guide

MAIZE SILAGE

31

Varieties

HM-114

2015–16 Yeilds, 12 sites, CV<16% Western Victoria - irrigated Berrigan - irrigated

Longer season variety –114 CRM

• • • • • • •

Excellent early vigour Very good standability Extremely low level basal tillering Tight husk cover High digestibility Excellent starch & sugar content Leading variety for silage yield

Coleambly - irrigated Leeton - irrigated Gunnedah - irrigated Narribri - irrigated Dalby - irrigated Darling Downs - Irrigated (late sown)

A longer season variety specifically selected for silage yield and feed quality. Suits majority of maize silage production areas through Australia.

Darling Downs - Irrigated South Burnett - Dryland Killarney - Dryland Darling Downs - Dryland 0%

20% 40% 60% 80% 100% 120% 140% HM-114 placed 1st or 2nd in 9/12 trials in 2015–16.

HM-152

HM-151

Mid-season variety – 97 CRM

Short season variety – 88 CRM

• • • • • • •

• • • • • • •

High cob % of total yield Good silage yield for maturity Suitable for medium-high population density Very good drought tolerance Good stay-green High digestibility Excellent starch & sugar content.

Maturity sits between P9400 and Maximus. Ideal variety for high-input silage maize in areas with short-medium length growing season. Good later planting or earlier harvest option where longer season varieties are normally grown.

High cob % of total yield Very good silage yield for maturity Suitable for high or low population density Excellent drought tolerance Good stay-green High digestibility Excellent starch & sugar content.

One of the shortest season varieties available with very high feed quality attributes. Will suit southern most areas with low heat units or as a very useful late-season planting option generally.

Why choose a short-season variety? Shorter season varieties may be suitable for: • Main-season sowing time, with the intention for an earlier harvest • High feed quality at harvest in areas that typically have lower growing season temperatures and cooler autumn conditions. i.e. short season varieties will finish reliably • A later sowing option e.g. late pasture silage in November, maize planted December • Flexibility for logistics such as planters, harvesting and irrigation • A more reliable (finishing) option where water is limited or unpredictable. Shorter season varieties suit much of the southern dairy and intensive beef zone. Whilst a higher yielding, late maturity variety may meet silage yield expectations, there may be a penalty in terms of getting the paddock back into grass pasture. Harvesting maize much later than early April will severely reduce the opportunity for new pasture establishment in the autumn. This may lead to reduced grass yield and impact on the winter and early spring grazing opportunities with some loss of pasture production potential.


Brassica and Summer Forage Crop Guide

32

SUMMER FORAGES QUICK REFERENCE GUIDE Variety

Leafmore

Interval

Falcon

Dynamo

Invitation

Type

Hardy Rape

Tall Rape

Leafy Turnip

Summer Turnip

Swede

D, B, L, W

D, B

D, B, L, W

D, B, L, W

D, B, L, W

3–4

3–4

5–8

2

2

3

3

4–5

1.5

1.5

Marginal dryland

2.5

2.5

2–3

1

1

In a mix (typical)

0.5–2.0

0.5–2.0

0.5–2.0

0.5–1.0

0.5–1.0

Spring/Summer

Aug–Dec

Sep–Dec

Aug–Dec

Sep–Jan

Nov–Jan

Autumn

Feb–Apr

Feb–Apr

Feb–Apr

Feb–Mar

Suggested min 9am Soil Co at sowing date

8–10

8–10

8–10

10–12

10–12

4

Weeks to first graze

8–10

10–12

6–8

10–12

16–24

5

Re–growth capacity

Excellent

Good

Excellent

Nil

Nil

3–4

1–3

3–4+

1

1

Mod–High

High

Mod–High

High

V. High

Spring

Yes

Yes

Yes

Summer

Yes

Yes

Yes

Yes

Early Autumn

Yes

Yes

Yes

Yes

Yes

Late Autumn/Winter

Yes

Yes

Yes

Yes

Whole crop %DM

14–15

14–15

14–15

9–10

10–11

Whole crop ME MJ/kgDM

11–13

11–13

11–13

11–13

13–14

Whole crop CP%

17–20

17–20

17–20

14–16

12–14

Whole crop NDF%

22–25

22–25

16–19

22–28

14–15

65

65

65

55

25–35

Leaf ME MJ/kgDM

11–12

11–12

11–12

11–12

11–12

Leaf CP%

18–20

18–20

18–23

18–20

18–20

35

35

35

45

65–75

Stalk/Bulb ME MJ/kgDM

10–11

10–11

10–11

12–13

12–13

Stalk/Bulb CP%

15–17

15–17

13–16

12–14

10–12

fair

fair

Stock Classes1 Fodder Options

High input/irrig. Sowing rate (kg/ha)2

Sowing time3

Good dryland

Guide to number of grazings typically possible Total Yield Potential

Feed Seasonality

Nutritional Features6

Leaf % of DM

Stalk/Bulb % of DM

Rape

Co–species Compatibility7

Turnip

fair

fair

fair

Swede

fair

fair

fair

poor

Kale

poor

fair

poor

fair

good

Chicory

good

good

good

good

fair

Millet

good

good

good

good

fair

Sorghum

poor

poor

poor

poor

poor

Clovers

good

good

good

good

good

Ann./Italian ryegrass8

good

good

good

fair

poor

poor


Brassica and Summer Forage Crop Guide

33

Caledonian

Commander

Pearler

Shirohie

Stargrazer

HM–151

HM–152

HM–114

Soft–stem Kale

High Yield Chicory

Hybrid Millet

Millet

Forage Sorghum

Silage Maize

Silage Maize

Silage Maize

D, B

D, B, L, W

D, B, L, W

D, B, L, W

D, B

D, B, L

D, B, L

D, B, L

Kaleage

Silage

Silage, Hay

Silage, Hay

Silage, Hay

Silage

Silage

Silage

5–6

6–10

10–15

20–25

20–25

seeds/ha

85–110,000

85–110,000

85–110,000

4

4–6

8–10

10–15

10–15

seeds/ha

60–85,000

60–85,000

60–85,000

3

2–4

4–8

5–8

3–8

seeds/ha

45–60,000

45–60,000

45–60,000

1–2

1.5–3.0

4–10

3–12

3–10

Nov–Jan

Aug–Nov

Oct–Dec

Oct–Dec

Oct–Dec

Oct–Dec

Oct–Dec

Oct–Dec

Feb–Apr

10–12

8–10

16–18

14–16

14–16

14–16

14–16

14–16

20–24

7–10

7–10

7–10

7–10

88 CRM

97 CRM

114 CRM

Limited

Excellent

Excellent

Excellent

Excellent

1

Many

2–3+

2–3+

1–2+

n/a

n/a

n/a

V. High

High

High

Mod–High

High–V. High

High

High–V.High

V.High

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

16–18

16

20

20

20

33–38

11–12

11–12

9–10

8–9

9–10

10.5–11.2

14–18

11–13

12–18

10–14

15–18

8.0–8.5

25–28

18–24

50–65

55–70

50–60

42–45

25–40

11–12

19–21

60–75

10–12

10–17

fair

good

good

good

poor

fair

good

good

good

poor

good

fair

fair

fair

poor

4. Typical minimum growth times with suitable moisture and growing conditions. Slow germination and plant stresses will likely delay crop development.

fair

poor

poor

poor

5. Plant potential due to specific characteristics, provided moisture, nutrients and management are adequate.

good

good

fair

fair poor

good

good

poor

fair

good

good

fair

good

good

good

fair

poor

good

good

good

poor

1. D Dairy, B Beef, L Lamb/Intensive sheep, W Wool/extensive sheep 2. Sowing rates and relative success will depend on various field factors and management applied. Higher rates for high production expectations. 3. Earlier pre–summer dates will largely only suit warm–temperate areas. Cooler areas should sow towards the end of the window. Summer–Autumn sowing dates are the reverse: cooler areas sow earlier for best results.

6. Indicative figures only. Plant density and growing conditions may markedly affect nutritional factors. Chicory, Millet and Sorghum figures refer to leafy, vegetative growth with minimal stem, prior to onset of reproductive phase. 7. Crop grow characteristics typically observed, and resulting comments made as suggestions for best outcomes. 8. Ryegrasses will only suit spring sowing in cool–mild summer situations. Co–species may reduce ryegrass potentail density over time.


Brassica and Summer Forage Crop Guide

34

SEED TREATMENT Tailored seed coatings are primarily used to enhance seed establishment, the delivery of rhizobia for legume inoculation and to improve handling and ballistics properties for aerial seeding. Heritage Seeds offers a range of seed technology options that have been developed for specific plant species. There are generally two types of coatings available: • Lime-based coating: Typically used for legumes and tropical grasses (resulting in a ‘build-up’, ie. weight gain of the seed) • Film-coating: Typically used for grasses or field crops to deliver a chemical seed coating (negligible weight gain for the seed).

AgriCote

OptiCote

Heritage Seeds premium seed coating technology AgriCote is available for pasture legumes, tropical grasses and forage herb species. It is designed to deliver significant advantages to plant establishment through insect protection (Gaucho®), fungicide protection, inoculant bacteria (on most legumes) and micronutrients. This coating technology also significantly improves the handling aspects of some seeds, enabling more efficient distribution across the paddock, which is particularly important for aerial application of some tropical species.

Offers both fungicide and insecticide protection for sorghum and corn crops. A film coating of Vitavax® and Gaucho is used on corn. Thiram and Gaucho/Cruiser® are used for sorghum.

Gaucho film coat

OptiCote PLUS Consists of the ingredients of OptiCote as mentioned above, but also includes Concept II® seed safener, for the use of Dual Gold herbicide in sorghum. ®Concept II, Cruiser and Dual Gold are registered trademarks of Syngenta. ®Gaucho, Poncho Plus are registered trademarks of Bayer. ®Vitavax is a registered trademark of Crompton.

A film-coat of Gaucho insecticide is designed to protect seedlings from biting and sucking insects (including red-legged earth mites) for up to four weeks during establishment. Gaucho Film Coat offers ‘stress shield’ benefits, which help to protect treated plants during extended dry periods. Gaucho Film Coat also includes a fungicide which protects the seed against fungal diseases.

Poncho Film Coat Poncho Plus insecticide is designed to protect seedlings from chewing as well as biting and sucking insects for up to four weeks during establishment. It includes the active ingredient in Gaucho Film Coat offers ‘stress shield’ benefits, which help to protect treated plants during extended dry periods. Poncho Film Coat also includes a fungicide which protects the seed against fungal diseases.

Untreated vs Treated


Brassica and Summer Forage Crop Guide

NOTES

35

OTHER PUBLICATIONS FROM HERITAGE SEEDS

For a copy of any of these guides please e-mail heritage@heritageseeds.com.au or call 1800 007 333


CONTACTS For enquiries relating to our products please contact your local Territory Manager: CENTRAL HIGHLANDS / NORTHERN AUSTRALIA / ATHERTON TABLELANDS Arthur Salisbury Territory Manager 0413 442 816 asalisbury@heritageseeds.com.au SOUTH WEST QUEENSLAND & DARLING DOWNS Chris Collyer Territory Manager 0427 007 900 ccollyer@heritageseeds.com.au

NORTH COAST NEW SOUTH WALES & HUNTER VALLEY James Lyon Territory Manager

Rob Winter Territory Manager & Regional Agronomist – Southern

0413 442 809 jlyon@heritageseeds.com.au

0427 010 870 rwinter@heritageseeds.com.au

SOUTHERN & CENTRAL NEW SOUTH WALES

SOUTH AUSTRALIA

James Stonestreet Territory Manager 0437 950 496 jstonestreet@heritageseeds.com.au

SOUTH EAST & CENTRAL QUEENSLAND & BURNETT

NORTHERN VICTORIA & RIVERINA Reece Hardwidge Territory Manager

Geoff Chambers Territory Manager

0428 178 719 rhardwidge@heritageseeds.com.au

0427 010 757 gchambers@heritageseeds.com.au NORTH WEST NEW SOUTH WALES Tony Stewart Territory Manager & Regional Agronomist – Northern 0427 010 854 tstewart@heritageseeds.com.au

TASMANIA

GIPPSLAND & SOUTH COAST NEW SOUTH WALES Emma McDonald Territory Manager 0438 736 943 emcdonald@heritageseeds.com.au WESTERN & CENTRAL VICTORIA Mark Rouse Territory Manager 0413 442 804 mrouse@heritageseeds.com.au

Kirk Brehaut Territory Manager 0491 219 291 kbrehaut@heritageseeds.com.au WESTERN AUSTRALIA Tim O’Dea Territory Manager 0429 203 505 todea@heritageseeds.com.au COMMERCIAL MANAGER – SOUTHERN REGION Tom Dickson 0413 442 814 tdickson@heritageseeds.com.au COMMERCIAL MANAGER – NORTHERN REGION Adrian Dridan 0413 442 800 adridan@heritageseeds.com.au

FREECALL 1800 007 333 www.heritageseeds.com.au Applicable Heritage Seeds’ varieties are protected under the PBR Act 1994

Disclaimer: The information presented in this publication is offered in good faith, based on seed industry data and relevant advice. Every effort has been made to ensure accuracy and freedom from error. Heritage Seeds, its agents or advisors, accepts no responsibility for any loss or actions arising from viewing the publication’s content. Copyright Heritage Seeds © 2016


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