| 棉铃虫对苏云金杆菌(B.t)的抗性监测及延缓抗性策略 |
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| 引用本文： | 陈锦绣,章东方,许仲武,程福如,白广京.棉铃虫对苏云金杆菌(B.t)的抗性监测及延缓抗性策略[J].安徽农业科学,1998(4). |
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| 作者姓名： | 陈锦绣 章东方 许仲武 程福如 白广京 |
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| 作者单位： | 安徽省农科院植物保护研究所，安徽省农科院棉花研究所，宿县地区植保站 |
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| 摘 要： | 室内采用Ｂ．ｔ连续多代汰选的棉铃虫，对Ｂ．ｔ能产生较强的抗药性，抗性倍数为２４．１３。采用浸叶法测定宿县、蒙城、安庆棉区棉铃虫对Ｂ．ｔ的抗性，结果表明：宿县、蒙城淮北棉区，棉铃虫对Ｂ．ｔ已产生早期低度抗性，抗性倍数分别为３．４１和２．５２。安庆棉区棉铃虫对Ｂ．ｔ尚未产生抗性，抗性倍数为１．３７。讨论了治理抗性的对策。
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| 关 键 词： | 棉铃虫 苏云金杆菌（B．t） 抗药性 |
Study on Cotton Bollworm Resistance to Bt Pesticide and the Strategy of Resistance Management |
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| Chen Jingxiu et al.Study on Cotton Bollworm Resistance to Bt Pesticide and the Strategy of Resistance Management[J].Journal of Anhui Agricultural Sciences,1998(4). |
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| Authors: | Chen Jingxiu |
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| Abstract: | Cotton bollworm's( Helicoverpa Armigera Hübner) resistance to biopesticide Bt was raised to 24.13 fold after having been continuously selected for 5 generations in the lab.The susceptibilities of bollworm strains collected from Suxian.Mengcheng and Anqing were tested with foliage feeding method and the results indicated that cotton bollworm from northern Anhui areas had already showed early resistance to Bt,i.e.Suxian 3.41 fold and Mengcheng 2.52 fold respectively.Cotton bollworm larvae from Anqing showed little resistance.The resistant management strategy of biopesticide Bt was also discussed. |
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| Keywords: | Helicoverpa armigera Bacillus thuringiensis Pesticide resistance |
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