Technology-based approaches to managing cotton bollworm in Bt Cotton
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The bollworm (Helicoverpa zea), also known as the corn earworm, is considered the most economicallydamaging caterpillar pest in Texas and Mid-southern U.S. cotton production. The use of Bt expressing cottonvarieties has allowed for successful control of lepidopteran pests such as the tobacco budworm (Chlorideavirescens) for over two decades and led to the complete eradication of pink bollworm (Pectinophoragossypiella) in the U.S. Despite successfully introducing Bt cotton varieties for these pests, injury frombollworm can still be observed in all Bt cotton varieties, though injury is reduced, especially when multiple Bt toxins are expressed.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
Provided for historical documentation only. Check Missouri Extension and Agricultural Experiment Station websites for current information.
Provided for historical documentation only. Check Missouri Extension and Agricultural Experiment Station websites for current information.