亚洲玉米螟对丁硫克百威的抗性筛选及交互抗性
Carbosulfan resistance selection and crossresistance to lamdacyhalothrin and phoxim in Asian corn borer, Ostrinia furnacalis
林荣华1；王晓军1；姜 辉1； 李 浩2 ；于彩虹2**
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作者单位：1农业部农药检定所生物技术研究测试中心 北京 100026；2中国矿业大学（北京）化学与环境工程学院 北京 100083
中文关键词：丁硫克百威，玉米螟，抗性汰选，交互抗性，高效氯氟氰菊酯，辛硫磷
英文关键词：carbosulfan,resistance,crossresistance,lamdacyhalothrin,phoxim,Asian corn borer,Ostrinia furnacalis
中文摘要：采用点滴法测定丁硫克百威对亚洲玉米螟Ostrinia furnacalis (Guenée)幼虫的致死中量，并采用亚致死剂量筛选亚洲玉米螟10代。结果表明，丁硫克百威处理亚洲玉米螟5代后，抗性即显著上升，抗性倍数为3.23倍，到10代时，抗性达到了5.43倍。对高效氯氟氰菊酯、辛硫磷和丁硫克百威3种玉米螟抗性品系进行交互抗性测定，发现丁硫克百威与其它2种农药存在交互抗性。建议在害虫防治谨慎使用丁硫克百威。
英文摘要：The topical application method has been applied with carbosulfan in selection of a susceptible strain of Asian corn borer,Ostrinia furnacalis (Guenée),for 10 successive selection generations.After the 5th generation,the LD50was 2.50 μg per larva with resistance ratio of 3.23,significantly higher than that of susceptible.It was demonstrated that there was apparent cross-resistance when carbosulfan was delt with lamda-cyhalothrin or phoxim resistant strain.It was suggested that when carbosulfan was sprayed for controlling the Asian corn borer in field,spraying times need to be limited and alternating insecticide will be selected.