Potato leafroll virus-Kenya: Potato leafroll virus luteovirus (PVY);
Publication: PlantwisePlus Knowledge Bank
Pest Management Decision Guides
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Prevention
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Rotate with non solanaceae crops such as maize, sorghum, beans, etc.
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Plant certified potato seed from certified suppliers such as KALRO Tigoni and ADC Molo.
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Plant potato varieties that have some tolerance such as Sherekea, Kenya Baraka, Dutch Robin and Annet.
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Keep the field free of potential hosts of aphids like black nightshade, potato volunteers from previous seasons, and other weeds.
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Plant at the onset of the rains to avoid aphid infestation.
Monitoring
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Additional relevant crops: tobacco, potato, tomato, sodom apple, black nightshade.
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Check for the upward and inward rolling of leaflet margin.
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Check for dead spots on the leaves, branches and tubers. Check also for malformed tubers and dwarf plants.
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Check if the lower leaves are turning brown.
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High population of ants on or around the plants feeding on honey dew.
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Start direct control when 5-winged aphids are caught on the traps or on the lower side of the leaf.
Direct Control
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Uproot infected plants and burn or bury atleast two feet deep.
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Place 4 yellow traps per acre to trap the adult aphid.
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Protect and conserve natural enemies of aphids such as lace wing, lady birds or parasitic wasps/Amphitech (Aphidius transcaspinus) by using less strong synthetic pesticides.
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Place honey traps under the plants to lure ants away from aphids to help control them.
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Control aphids by spraying Azadirachtin (Neemroc EC and Nimbecidine EC: 20-50ml per 20L of water).
Restrictions
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Always wear protective equipment when spraying chemicals
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Follow the instructions on the product label, such as dosage, timing of application, max number of sprays, restricted re-entry interval
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Always consult recent list of registered pesticides (PCPB)
Direct Control
Control aphids by spraying Lambda-cyhalothrin, 17.5g/L e.g. DUDUTHRIN1.7 EC or KARATE 17.5 EC at a rate of 60ml in 20L of water
WHO Class II (Moderately hazardous) and PHI of 3-7 days
Control aphids by spraying Bifenthrin (e.g. Defender 2.5% or Brigade at the rate of 20ml per 20L of water).
Defender: PHI: 7 days, WHO Class II, MRL -0.3mg/Kg Brigade PHI - 3 days
Indexing Terms
Descriptors
- arthropod pests
- azadirachtin
- bifenthrin
- biological control
- biological control agents
- botanical insecticides
- burning
- chemical control
- control
- cultivars
- cultural control
- disease control
- disease vectors
- extension
- insect control
- insect pests
- insecticides
- lambda-cyhalothrin
- monitoring
- natural enemies
- parasites
- parasitoids
- pathogens
- pest control
- pest management
- pesticides
- pests
- plant disease control
- plant diseases
- plant pathogens
- plant pests
- plant viruses
- planting season
- planting stock
- potatoes
- predators
- predatory insects
- rotations
- tobacco
- tomatoes
- traps
- varietal tolerance
- vector control
- vectors
- weed control
- weeds
- wild relatives
- yellow traps
Organism Descriptors
Identifiers
- Aphidius colemani
- Aphidius transcaspinus
- aphids
- biocontrol agents
- biological control organisms
- black nightshade
- cultivated varieties
- lacewings
- ladybirds
- ladybugs
- Lycopersicon esculentum
- pest arthropods
- pest insects
- pest management decision guides
- phytopathogens
- Potato leaf roll virus
- Potato leafroll virus luteovirus
- predaceous insects
- predacious insects
- Sodom apple
- Sodom's apple
- viruses of plants
- wasps
- biocontrol
- flaming
- advisory services
- extension activities
- planting materials
- crop rotation
- rotational cropping
- subsaharan Africa
Geographical Locations
Broader Terms
- Braconidae
- Hymenoptera
- insects
- Hexapoda
- arthropods
- invertebrates
- animals
- eukaryotes
- Sternorrhyncha
- Hemiptera
- Asclepiadaceae
- Gentianales
- eudicots
- angiosperms
- Spermatophyta
- plants
- Calotropis
- Neuroptera
- Coleoptera
- Glyptapanteles
- Luteoviridae
- positive-sense ssRNA Viruses
- ssRNA Viruses
- RNA Viruses
- viruses
- Solanaceae
- Solanales
- Nicotiana
- Polerovirus
- Solanum
- Aphidius
- Africa
- ACP Countries
- Anglophone Africa
- Commonwealth of Nations
- East Africa
- Africa South of Sahara
- lower-middle income countries
- medium Human Development Index countries
Information & Authors
Information
Published In
Pest Management Decision Guides
Pest Management Decision Guide: Green and Yellow List
Applicable geographic locations
Africa, Kenya
Copyright
© CABI 2014. This article is published under aCreative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0)Published under a CC-BY-SA 4.0 licence
History
Issue publication date: 1 January 2016
Published online: 12 July 2016
Language
English
Authors
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