Prevention of Spotted Pod Borer on beans: Maruca vitrata
Publication: PlantwisePlus Knowledge Bank
Factsheets for Farmers
Recognize the problem
The spotted pod borer feeds on several beans and peas apart from chickpeas. Larvae web together the bean leaves, flowers, buds and new shoots, then feed inside on these plant parts, protected by the webbing. This causes new shoots and buds to appear dry. The larvae also make holes in the pods and feed on the seeds and pods, preventing the pods from becoming fully developed. This damage to the pods and seeds, and the defoliation (leaf drop) the insects cause, means they are regarded as a serious pest.
Background
Larva of M. vitrata.
PPD, Yangon, Myanmar
The damage caused by the pod borers results in yield losses of 20-50%. Pod borers are difficult to control effectively because the webbing around leaves and buds, and the pods around the seeds protect larvae from natural enemies and exposure to pesticides. Therefore, prevention is more effective at reducing the incidence of the spotted pod borer.
Management
Webbing leaves.
PPD, Yangon, Myanmar
•
Use light traps starting at 15 DAS
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Smoking at 30 DAS, then at weekly intervals
•
Hand pick and destroy the larvae once infected plant parts are seen
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Apply neem pesticide at the beginning of flowering until harvesting, use dosage as recommended on the label
•
Apply systemic pesticides and contact pesticides alternatively when 2 larvae/20 plants occur, or take action when 10% infected plants/acre occur. Possible applications include acephate, carbaryl, profenofos, deltamethrin 500cc/ac, chloropyrifos 40%EC, emamectin benzoate 5% + lambda-cyhalothrin 10%WP.
When using a pesticide, always wear protective clothing and follow the instructions on the product label, such as dosage, timing of application, and pre-harvest interval.
Indexing Terms
Descriptors
- acephate
- arthropod pests
- beans
- borers
- botanical insecticides
- carbaryl
- chemical control
- chickpeas
- chlorpyrifos
- control
- cultural control
- deltamethrin
- emamectin
- equipment
- insect control
- insect pests
- insecticides
- lambda-cyhalothrin
- light traps
- peas
- pest control
- pesticides
- pests
- plant pests
- prevention
- profenofos
- publications
- traps
Organism Descriptors
Identifiers
Geographical Location
Broader Terms
Information & Authors
Information
Published In
Applicable geographic locations
Asia, Myanmar
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 2014
Published online: 2 December 2015
Language
English
Authors
Metrics & Citations
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