Which insecticides are used against lepidopterous (caterpillar) larvae?
Correct answer A. Lufenuron, Chlorfluazuron, Flufenoxuron
Explanation
Lufenuron, chlorfluazuron and flufenoxuron are benzoylurea insect growth regulators that block chitin formation, so caterpillars die when they try to moult.
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