ITHACA, N.Y. – Crops genetically modified with the bacterium Bt (Bacillus thuringiensis) produce proteins that kill pest insects. Steady exposure has prompted concern that pests will develop ...

ITHACA, N.Y. -- Genetically modified crops containing two insecticidal proteins in a single plant efficiently kill insects. But when crops engineered with just one of those toxins grow nearby, insects ...

Staying ahead More pest species are becoming resistant to the most popular type of genetically-modified, insect-repellent crops, but not in areas where farmers follow expert advice, a new study has ...

WEST LAFAYETTE, Ind. -- Corn farmers could learn a lesson from cotton producers: Planting crops genetically engineered to be insect-resistant works in the short run, but also could increase the number ...

Pyramid transgenic crops that express two Bacillus thuringiensis (Bt) toxins hold great potential for reducing insect damage and slowing the evolution of resistance to the toxins. Here, we analyzed a ...

Figure 1: The presence of a Bt cry1Ac transgene is detected by simple observation of GFP under illumination of UV light. Figure 5: Regression analysis of fluorescence spectrophotometry measurements in ...

Bacillus thuringiensis (Bt) is an insecticide with unusual properties that make it useful for pest control in certain situations. Bt is a naturally occurring bacterium common in soils throughout the ...

Bruce Tabashnik, study leader and department head of entomology in the University of Arizona's College of Agriculture and Life Sciences, has used pest-resistant cotton and the release of sterile pink ...

Cornell University entomologist Anthony Shelton finds when engineered crops containing just one Bt toxin grow near modified plants with two toxins, insects may more rapidly develop resistance to all ...