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ARS Home » Southeast Area » Stoneville, Mississippi » Southern Insect Management Research » Research » Publications at this Location » Publication #200051

Title: Potential use of proteinase inhibitors and avidin for insect control and Bt resistance management

item Zhu, Yu Cheng

Submitted to: Society for Invertebrate Pathology Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 8/27/2006
Publication Date: 8/27/2006
Citation: Zhu, Yu Cheng, 2006. Potential use of proteinase inhibitors for insect control and Bt resistance management. Program and Abstract of The 9th International Colloquium on Invertebrate Pathology and Microbial Control and VIII International Conference on Bacillus thuringiensis. P165.

Interpretive Summary:

Technical Abstract: Complete Bt cotton system puts heavy selection pressure on Lepidoptera insects. Potential development of Bt resistance is major concern over Bt cotton technology. Another emerging problem is shift of pest status due to reduced number of sprays and resistance development in some sucking insects, especially the tarnished plant bug. To make Bt cotton versatile and durable, Bt resistance management strategies must be carried out to slow down the resistance. Another important consideration is to enhance performance of Bt cotton. The great idea is to stack genes with different mode of action, especially those genes with wide control ranges, not only Lepidoptera insects, but also non-Lepidoptera insects. Any gene targeting sucking insects is greatly desirable. Avidin and proteinase inhibitors are potential candidates for enhancing Bt cotton performance. This presentation will show how Bt toxin interacts with avidin and proteinase inhibitors.