5种药剂对斑鞘豆叶甲的室内毒力测定及田间药效试验  

Laboratory Toxicity Tests and Field Trials of 5 Kinds of Insecticides to Colposcelis signata Mots chulsky

作　　者：王小奇[1] 崔娟[1] 张萌[1,2] 刘丹竹[1] 朱诗禹 秦昊东 史树森[1] 

机构地区：[1]吉林农业大学农学院/大豆区域技术创新中心,长春130118 [2]长春市农业科学院,长春130111

出　　处：《农药》2015年第11期834-836,共3页Agrochemicals

基　　金：国家现代农业产业技术体系建设专项资金项目(CARS-04)

摘　　要：[目的]筛选出防治斑鞘豆叶甲成虫的高效低毒药剂。[方法]采用浸叶法进行5种杀虫剂对斑鞘豆叶甲成虫的室内毒力测定及田间药效试验。[结果]室内毒力测定结果表明:0.5%苦参碱SL对斑鞘豆叶甲具有较高的毒性,24 h后LC50值为0.23 mg/L,72 h后LC50值为0.10 mg/L,其次为2.5%高效氯氟氰菊酯EW和1.14%甲氨基阿维菌素苯甲酸盐EC,72 h后LC50值分别为1.17、3.39 mg/L。田间药效试验结果表明:5种药剂对斑鞘豆叶甲成虫均有较好的防效,0.5%苦参碱SL及10%吡虫啉WP具有更好的速效性和持效性。[结论]防治斑鞘豆叶甲最适药剂为0.5%苦参碱SL及10%吡虫啉WP,1.14%甲氨基阿维菌素苯甲酸盐EC可轮换使用。[Aims] The study aims to screen out the insecticides with highly efficacy and low toxicity for controlling Colposcelis signata adults. [Methods] Toxicity test in laboratory was done by the method of dipping foliar and field efficacy of five insecticides was done by using foliar spraying. [Results] The results of toxicity test showed that matrine 0.5% SL was highly toxic to C. signata adults. Furhter, with LCso values of 0.23 mg/L after 24 hours and 0.10 mg/L after 72 h, respectively. Followed by beta-cypermethrin 4.5% EC and emamectin benzoate 1.14% EC, their LCs0 values were 1.17 and 3.39 rng/L, respectively. The results of field experiments showed that five pesticides were highly active and could be used as the candidates for controling C. Signora adults. Especially matrine 0.5% SL and imidacloprid 10% WP had the characteristics of efficient and sustainable control effect. [Conclusions] Therefore, matrine 0.5% SL and imidacloprid 10% WP were the most appropriate insecticides for controling C. signata adults. While emamectin benzoate 1.14% EC could be applied as the alternative pesticides.

关 键 词：杀虫剂 斑鞘豆叶甲 毒力测定 田间试验 

分 类 号：S481[农业科学—农药学]