Spodoptera frugiperda, fall armyworm (FAW) is the major pest of maize in Brazil and has readily acquired field resistance to a broad range of synthetic insecticides and to Bacillus thuringiensis (Bt) insecticidal proteins expressed in important crops. This study aims to understand patterns of cross-resistance in FAW by investigating the toxicological profile of a Bt-resistant Brazilian strain (Sf_Des) in comparison to a Bt-susceptible strain (Sf_Bra).

中文翻译：

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巴西秋粘虫菌株对 Bt Cry1 蛋白有抗药性的毒理学和分子分析

Spodoptera frugiperda，秋粘虫 (FAW) 是巴西玉米的主要害虫，很容易获得对多种合成杀虫剂和重要作物中表达的苏云金芽孢杆菌(Bt) 杀虫蛋白的田间抗性。本研究旨在通过研究 Bt 抗性巴西菌株 (Sf_Des) 与 Bt 易感菌株 (Sf_Bra) 的毒理学特征来了解秋粘虫交叉抗性的模式。