Extrapolating non-target risk of Bt crops from laboratory to field

  title={Extrapolating non-target risk of Bt crops from laboratory to field},
  author={Jian J. Duan and Jonathan Gary Lundgren and Steve E. Naranjo and Michelle Marvier},
  booktitle={Biology letters},
The tiered approach to assessing ecological risk of insect-resistant transgenic crops assumes that lower tier laboratory studies, which expose surrogate non-target organisms to high doses of insecticidal proteins, can detect harmful effects that might be manifested in the field. To test this assumption, we performed meta-analyses comparing results for non-target invertebrates exposed to Bacillus thuringiensis (Bt) Cry proteins in laboratory studies with results derived from independent field… CONTINUE READING