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Surveillance study reveals field-evolved resistance to Cry1Ac and Cry2Ab cotton in pink bollworm populations, highlighting widespread transgenic crop vulnerability.
High PBW larval recovery on Bt-II in conjunction with high LC₅₀ values for Cry1Ac and Cry2Ab in major cotton-growing districts of central and southern India provides evidence of field-evolved resistance in PBW to Bt-I and Bt-II cotton.
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Naik et al. (2018) studied this question.
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