EPA Requests Nominations for Experts to Serve on the July 17-20, 2018 FIFRA SAP Panel on Resistance in Lepidopteran Pests to Bacillus thuringiensis (Bt) Plant Incorporated Protectants

On March 5, 2018, the Agency published a Federal Register notice (FRN) requesting nominations of experts to serve as ad hoc members on the July 17-20, 2018 Federal Insecticide, Fungicide, and Rodenticide Act Scientific Advisory Panel (FIFRA SAP) Panel meeting to consider and review resistance in Lepidopteran Pests to Bacillus thuringiensis (Bt) Plant Incorporated Protectants in the U.S.

Nominations are due on or before April 4, 2018 and can be provided by following the instructions in the FRN in docket EPA-HQ-OPP-2017-0617 in www.regulations.gov or by forwarding the nominations to the Designated Federal Official listed below. Continue reading

Study shows Bt trait in corn having reduced effectiveness

By Matt Shipman, NC State University

A new study from North Carolina State University and Clemson University finds that the toxin in a widely used genetically modified (GM) crop is having little impact on the crop pest called corn earworm (Helicoverpa zea) – which is consistent with predictions made almost 20 years ago that had been largely ignored. The study may be a signal to pay closer attention to warning signs about the development of resistance in agricultural pests to GM crops.

At issue is genetically engineered corn that produces a Bacillus thuringiensis (Bt) protein which, in turn produces a toxin called Cry1Ab. This GM corn was originally designed to address a pest called the European corn borer (Ostrinia nubilalis) and went on the market in 1996.

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