蛇床子素粉剂对玉米象成虫的杀虫活性及酶活性的影响  

Insecticidal activity of osthole powder and its effect on enzyme activity of Sitophilus zeamais

作　　者：夏长秀[1,2] 李绍勤[1] 蔡万伦[1] 严翔 张宏宇[1] 

机构地区：[1]华中农业大学城市有害生物防治研究所,武汉430070 [2]江西省赣州市柑桔科学研究所,江西赣州341000

出　　处：《昆虫知识》2009年第5期740-744,共5页Entomological Knowledge

基　　金：国家"十一五"支撑计划项目(2006BAD02A18-03和2006BAI09B04-06)

摘　　要：研究1.0%蛇床子素(osthole)粉剂对玉米象Sitophilus zeamais Motschusky成虫的杀虫活性及其对玉米象成虫羧酸酯酶、乙酰胆碱酯酶、谷胱甘肽S-转移酶及蛋白质活性的影响。结果表明,1.0%蛇床子素粉剂对玉米象成虫有很好的杀虫活性,处理玉米象成虫3d后,0.8mg/kg以上剂量的蛇床子素粉剂对玉米象成虫的校正死亡率达100%;用0.19mg/kg蛇床子素粉剂处理玉米象成虫2d后,试虫体内乙酰胆碱酯酶、羧酸酯酶和蛋白质活性均表现出受抑制,而谷胱甘肽S-转移酶活性随处理时间的延长整体趋势表现出被诱导。The insecticidal activity of 1.0% osthole powder and its influence on activity of CarE, AchE, GSTs and proteins of Sitophilus zeamais Motschusky was studied. The results showed that 1.0% osthole powder had strongly insecticidal bioactivity against S. zeamais. The corrected mortality of S. zeamais adults were 100% after 3 days treatment over the dosage 0.8 mg/kg. After treated with 0.19 mg/kg in 2 days, the activities of CarE, AchE and proteins in S. zeamais were decreased, whereas the activity of GSTs was induced.

关 键 词：1.0%蛇床子素粉剂 玉米象 杀虫活性 酶活性 

分 类 号：S482.3[农业科学—农药学]