Predators delay pest resistance to Bt crops
The results showed that diamondback moth populations were reduced in the treatment containing ladybird beetles and unsprayed non-Bt refuge plants. Also, resistance to Bt plants evolved significantly slower in this treatment. In contrast, Bt plants with no refuge were completely defoliated in treatments without ladybirds after only four to five generations, showing rapid development of resistance in the pests. In the treatment with sprayed non-Bt refuge plants and predators, diamondback moth populations were reduced, but the larvae more quickly evolved resistance to the Bt plants.
“These results demonstrate the effectiveness of Bt plants in controlling the pest population, the lack of effect of Bt on the predators and the role predators play in delaying resistance to Bt plants in the pest population,” said Shelton.
The study was funded by United States Department of Agriculture and the Special Research Projects for Developing Transgenic Plants in China.
- USDA chief says urged Buffett to ready BNSF for record crops
- NGFA, other ag groups commend introduction of Senate rail bill
- Registration for AgGateway’s annual conference now open
- Soybean research in Kansas highlighted at breeders’ tour
- Activist investor Peltz pushes DuPont to split itself
- US dollar strength is weighing on crop markets Thursday morning
- Activists fighting Golden Rice even more in 2014
- U.S. GMO labeling foes triple spending in first half of this year
- Source shows half of GMO research is independent
- White House issues veto threat on bill to block WOTUS rule
- Stoller soybean research produces 214 bushels per acre
- USDA invites public comments on climate report