Baseline Susceptibility of Field Populations of Helicoverpa armigera to Bacillus thuringiensis Vip3Aa Toxin and Lack of Cross-Resistance between Vip3Aa and Cry Toxins

• Published in: Toxins Vol. 9; no. 4; p. 127
• Main Authors: Wei, Yiyun, Wu, Shuwen, Yang, Yihua, Wu, Yidong
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 05.04.2017; MDPI
• Subjects: Animals; Bacterial Proteins - toxicity; Cotton; Cross-resistance; Cry1Ac; Cry1Ac toxin; Cry2Ab; Damage; Endotoxins - toxicity; Helicoverpa armigera; Hemolysin Proteins - toxicity; Larva - drug effects; Lethal Dose 50; Mode of action; Moths - drug effects; Pest control; Pests; Populations; Proteins; Pyramids; susceptibility; Toxins; Vip3Aa; China; Vip3Aa; cross-resistance; susceptibility; Cry1Ac; Cry2Ab; Helicoverpa armigera

The cotton bollworm Helicoverpa armigera (Hübner) is one of the most damaging cotton pests worldwide. In China, control of this pest has been dependent on transgenic cotton producing a single Bacillus thuringiensis (Bt) protein Cry1Ac since 1997. A small, but significant, increase in H. armigera res...