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Effects of seasonal changes in cotton plants on the evolution of resistance to pyramided cotton producing the Bt toxins Cry1Ac and Cry1F in Helicoverpa zea.

Pest management science - 1 Mar 2018

Carrière Yves, Degain Ben A, Unnithan Gopalan C, Harpold Virginia S, Heuberger Shannon, Li Xianchun, Tabashnik Bruce E

Abstract excerpt

BACKGROUND: In pests with inherently low susceptibility to Bacillus thuringiensis (Bt) toxins, seasonal declines in the concentration of Bt toxins in transgenic crops could accelerate evolution of resistance by increasing the dominance of resistance. Here, we evaluated Helicoverpa zea survival on young and old cotton plants that produced the Bt toxins Cry1Ac and Cry1F or did not produce Bt toxins. RESULTS: Using...

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PMID: 28967711
DOI: 10.1002/ps.4746

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Effects of seasonal changes in cotton plants on the evolution of resistance to pyramided cotton producing the Bt toxins Cry1Ac and Cry1F in Helicoverpa zea.PMID 28967711Read ↗

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