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Pesticide Toxicology Laboratory

ISU Entomology / Pesticide Toxicology Laboratory / Effects of Bacillus thuringiensis var San Diego on predation effectiveness, development and mortality of Coleomegilla maculata lengi (Col: Coccinellidae) larvae

Effects of Bacillus thuringiensis var San Diego on predation effectiveness, development and mortality of Coleomegilla maculata lengi (Col: Coccinellidae) larvae

Authors: Giroux, S.; Coderre, D.; Vincent, C.; Cote, J.-C.
Journal, Volume, Year: Entomophaga, volume 39(1):61-69, 1994
Summary

Pollen was treated with M-One (Bt San Diego) formulation. C. mac. larvae took longer to develop on the M-One treated pollen than on the water control treated pollen. No larval mortality occurred. Third instar larvae were fed Leptinotarsa decemlineata eggs treated with M-One and at the hightest level of treatment (200 mL M-One/L), the larvae attacked the eggs 35% less than in controls.

Comments

Not using transgenic Bt. Paper included some developmental measures and a behavioral measure, which are less common. M-One formulation appears to have a relatively low risk at manufacturer's reccommended application rate (20 mL/L)