不同杀虫剂对梨叶瘿蚊的田间防效评价  

Evaluation of Field Control Efficiency of Different Insecticides on Larvae of Contarinia pyrivor (Riley)

作　　者：赵敏[1] 李荣[1] 吴传伟[1] 洪文英 陈建明[3] 

机构地区：[1]浙江省桐庐县农业技术推广中心植保站,浙江桐庐311500 [2]浙江省杭州市植保土肥总站,杭州310020 [3]浙江省农业科学院植物保护与微生物研究所,杭州310021

出　　处：《农药》2009年第11期849-850,共2页Agrochemicals

基　　金：杭州市科技攻关项目(20070632B05)

摘　　要：12种杀虫剂及其混配处理对梨叶瘿蚊的田间防效试验结果表明:50%丁醚脲SC、10%烯啶虫胺AS、80%敌敌畏EC与2%阿维菌素EC或4.5%高效氯氰菊酯EC或10%吡虫啉WP混配对梨叶瘿蚊幼虫的防效有很好的速效性和持效性,尤其是敌敌畏与阿维菌素的混配;这些药剂对梨叶瘿蚊的防效在药后3～5d分别为99.0%～80.1%、85.2%～80.1%、94.3%～94.4%、89.5%～87.1%和87.4%～83.8%,而单剂80%敌敌畏EC速效性好但持效性差,药后3～5d防效为87.8%～67.4%。2%阿维菌素EC、5%甲维盐SG、40%毒死蜱EC、25%吡·灭幼WP、5%啶虫咪WP、10%吡虫啉WP、4.5%高效氯氰菊酯EC、75%灭蝇胺WP和5%氟虫腈SC的最高防效小于77%,难以有效控制梨叶瘿蚊的为害。Field control efficiency of 12 kinds of insecticide with 16 treatments on larvae of Contarinia pyrivora was evaluated in the paper. The results showed that these insecticides such as diafenthiuron 50% SC, nitenpyram 10% AS, mixture of dichlorovos 80% EC with avermectins 2% EC orβ-cypermethrin 4.5% EC or imidacloprid 10% WP had good rapidly and durable effect against the insect pest, especially mixture of dichlorovos and avermectins. On the 3rd to 5th days after treatment, control efficacies of these insecticides to C. pyrivora were 99.0-80.1%, 85.2-80.1%, 94.3-94.4%, 89.5-87.1% and 87.4-83.8%, respectively While dichlorovos 80% EC had good rapidly available and bad durable effect, its control effect was 87.8-67.4%. Avermectins 2% EC, methylamino abamectin benzoate 5% SG, chlorpyrifos 40% EC, imidacloprid.chlorbenzuron 25% WP, acetamiprid 5% WP, imidacloprid 10% WP,β-cypermethrin 4.5% EC, cyromazine 75% WP and fipronil 5% SC had no significant control effects to the pest, their highest control effect were less than 77%.

关 键 词：梨叶瘿蚊 不同杀虫剂 田间防效 

分 类 号：S482.3[农业科学—农药学]