几种生物制剂对黄曲条跳甲卵及幼虫的活性测定  

Study on the activity of several biological agents against eggs and larvae of the striped flea beetle Phyllotreta striolata

作　　者：杨建云[1] 向亚林[2] 田耀加 凌冰[1] 陈小菊[1] 张茂新[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广东广州510642 [2]揭阳职业技术学院生物工程系,广东揭阳522000 [3]广州市农业科学研究院特用玉米所,广东广州510308

出　　处：《广东农业科学》2013年第2期65-67,72,共4页Guangdong Agricultural Sciences

基　　金：国家科技支撑计划项目(2012BAD19B01);广东省科技计划重大项目(2009A20101001)

摘　　要：室内条件下采用浸渍法和胃毒法测定了鱼藤酮、印楝素、苦参碱3种植物源制剂及Bt工程菌对黄曲条跳甲卵和幼虫的生物活性。结果表明,12.5 mg/L鱼藤酮、20 mg/L苦参碱,0.5%印楝素乳油2 000倍及Bt工程菌粉500倍可显著抑制黄曲条跳甲卵孵化。4种生物制剂对黄曲条跳甲三龄幼虫均具有杀虫活性,其中以印楝素的活性最佳,对三龄幼虫的LC50为1.00 mg/L。The biological activity of three kinds of plant insecticides （Rotenoid, azadirachtin, matrine） and Engineering Bt against the 3rd instar larvae and eggs of Phyllotreta striolata was conducted under lab condition, with the method of maceration and stomach toxic. The results indicated that rotenone at 12.5 mg/L concentration, matrine at 20 mg/L concentration, 0.5% azadirachtin EC or the Engineering Bt with 500 fold dilution have a significant effect on controlling the eggs hatching of P.striolata. All the botanical insecticides showed strong bio-activity against the 3rd instar larvae of the beetle, and the azadirachtin was the best with the LCs0 of which was 1.00 mg/L.

关 键 词：生物制剂 黄曲条跳甲 生物活性 

分 类 号：Q968.1[生物学—昆虫学]