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DEVELOPMENT OF A MULTI-TIERED INSECT RESISTANCE MANAGEMENT PROGRAM FOR GENETICALLY MODIFIED CORN HYBRIDS EXPRESSING THE PLANT INCORPORATED PROTECTANT, BACILLUS THURINGIENSIS
Citation:
CARROLL, M. AND J. A. GLASER. DEVELOPMENT OF A MULTI-TIERED INSECT RESISTANCE MANAGEMENT PROGRAM FOR GENETICALLY MODIFIED CORN HYBRIDS EXPRESSING THE PLANT INCORPORATED PROTECTANT, BACILLUS THURINGIENSIS. Presented at Ecological Society of America National Meeting, San Jose, CA, August 05 - 10, 2007.
Impact/Purpose:
To inform the public
Description:
A significant increase in genetically modified corn planting driven by biofuel demand is expected for the 2007 growing season with future planted acreages approaching 80% of total corn plantings anticipated by 2009. As demand increases, incidence of farmer non-compliance with mandated non-genetically modified refuge is likely to increase. As part of the FIFRA registration’s terms and conditions, seed producers of genetically modified corn expressing the plant incorporated protectant Bacillus thuringiensis (Bt) are required to implement and provide information to the U.S. Environmental Protection Agency (EPA) on integrated resistance management (IRM) programs for genetically modified crops. Long-term sustainability of genetically modified corn expressing Bt relies on the validity of assumptions underlying IRM models used by the EPA and the ability of EPA to monitor, detect and react to insect resistance when it develops. The EPA is developing a multi-tiered approach that utilizes a stochastic spatially explicit population genetics model for the evolution of insect resistance in temporally and spatially heterogeneous environments and satellite and airborne remote sensing to locate and monitor genetically modified corn in the agricultural landscape. The current status of the EPA IRM monitoring program and integration of IRM models and remote sensed imagery acquired from multi-spectral satellite and airborne hyperspectral sensors for use as a decision support tool will be discussed.