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Pesticide Toxicology Laboratory

ISU Entomology / Pesticide Toxicology Laboratory / A screening level approach for nontarget insect risk assessment: Transgenic Bt corn pollen and the monarch butterfly (Lepidoptera: Danaidae)

A screening level approach for nontarget insect risk assessment: Transgenic Bt corn pollen and the monarch butterfly (Lepidoptera: Danaidae)

Authors: Wolt, J.D., Peterson, R.K.D., Bystrak, P., Meade, T.
Journal, Volume, Year: Environmental Entomology, volume 32(2):237-246, 2003
Summary

The risk of adverse effects to monarchs from Bt corn pollen was assessed in a screening level approach using exposure estimates, host-range information, and probabilistic toxicity to sensitive species (from many published reports). Demonstrated a likelihood of low risk to monarchs from Bt corn pollen. Used a conservative assessment to identify concerns and uncertainties.

Comments

Would help the method to have data for toxicity to non-target species, as most of the toxicity database is on target species. Demonstrated the use of conservative risk screening to help focus further research.