
The toxicity of tetrahydrofuran lignan grandisin was evaluated against larvae of Chrysomya megacephala F. (Diptera: Calliphoridae). The bioassay involved topical treatment on larvae, topical treatment on egg masses, and incorporation in the larval diet. Grandisin showed inhibition of postembryonic development by ovicidal (30%) and larvicidal (38%) effects and reduced larval weight (4 mg), when topically applied on egg masses and starving larvae (L1) at a concentration of 100 microg/microl. These findings elucidated the effect of grandisin on the C. megacephala life cycle and its potential to control C. megacephala populations.
Insecticides, Diptera, Toxicity Tests, Metamorphosis, Biological, Animals, Furans, Insect Control, Piper, Lignans
Insecticides, Diptera, Toxicity Tests, Metamorphosis, Biological, Animals, Furans, Insect Control, Piper, Lignans
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