Caterpillars
| Contributor: | CABI |
| Date Compiled: | 2024 |
Prevention
| Solution |
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Removing weeds from the fields, plowing and drying the soil, or watering the fields to destroy or deteriorate their pupation sites will help reduce the source of insects.
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Monitoring
| Solution |
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Monitoring practices begins in mid-to-late June, when the adult armyworms begin to migrate. Pay attention to the egg masses and first-generation larvae with yellow-white hairs on the back of vegetable leaves.
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Select 2 crops from representative cruciferous vegetables, beans, lotus root, taro, etc. and select 3 plots of each crop. Use the diagonal 5-point sampling method, once every 10 days, in the early morning or evening, 10 points in each field, and survey 5 plants at each point
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If any traces of larvae or signs of damage are found, take timely preventive measures.
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The best time to eliminate Spodoptera litura is before the third instar larvae.
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Control
Regulations surrounding chemical products can change rapidly – always verify chemicals recommended here with the most recent legislation and lists of products registered for your country
| Solution | Product Category | Production stage (if possible with reference to BBCH scale) | Max nb. of a. i. application/year | Application Details and Notes (commercial product example) | Chemical Group | IRAC Code |
|---|---|---|---|---|---|---|
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Chlorantraniliprole
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Synthetic insecticide
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Treat at the first appearance of parasites. Suspend treatments 14 days before harvest
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2
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MINECTO ALPHA TM (1L/ha)
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Diamides
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28
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The information made available here has been obtained from or is based upon sources believed by CABI to be reliable but is not guaranteed as to accuracy or completeness. Anyone acting or relying on such information does so entirely at their own risk. The efficacy of the IPM methods included above will depend on local conditions and might not always be suitable everywhere within the specified country.