volume 167, issue 10, P868-879 2019
DOI: 10.1111/eea.12837
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Tuyet Thi Anh Luong, Bronwen W. Cribb, Sharon J. Downes, Lynda E. Perkins, Myron P. Zalucki

Abstract: Abstract Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) larvae occasionally have been reported to survive at management threshold levels in fields of Bollgard II® cotton, Gossypium hirsutum L. (Malvaceae). The pattern and degree of larval survival is not easily predicted but depends on the ability of first instars to establish on host plants. Experiments were conducted with Bacillus thuringiensis Berliner (Bt)‐susceptible and Bt‐resistant larvae of H. armigera to understand how physiologically Bt‐susc…

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