9种不同杀虫剂对枣瘿蚊的防治效果研究

Control Effects of Nine different Kinds of Pesticides against Contaria sp.

[目的]筛选枣瘿蚊的防治药剂。[方法]通过田间小区试验比较了9种杀虫剂对枣瘿蚊的防治效果。[结果]9种药剂对枣瘿蚊防治效果均有较长的持效期,其中240 g/L螺虫乙酯悬浮剂6 000倍稀释液、25%噻虫嗪水分散粒剂7 000倍稀释液具有较好的速效性和持效性,药后3、7、11 d防效均在84%以上;1%甲维盐水剂、2.5%高效氯氟氰菊酯乳油、100 g/L乙虫腈悬浮剂、5%噻螨酮乳油、240g/L氟啶虫胺腈悬浮剂防治枣瘿蚊速效性较差,3 d后药效均低于70%。[结论]防治枣瘿蚊为害嫩叶,240 g/L螺虫乙酯悬浮剂6 000倍稀释液、25%噻虫嗪水分散粒剂7 000倍稀释液、48%毒死蜱乳油1 500倍稀释液均对枣瘿蚊具有较稳定的防效。

[Objective] The aim was to screen out good pesticides to control Contaria sp..[Method] Control effects of nine different kinds of pesticides against Contaria sp.were compared through field plot experiment.[Result] The nine different kinds of pesticides all had longer persistent period to control Contaria sp.,among them the 6 000 times solution of 240 g/L spirotetramat SC and the 7 000 times solution of 25％ thiamethoxam WG had good rapidly available and persistent period,and the control effects of them were more than 84％ in 3,7 and 11 days after treatment.1％ emamectin benzoate-chlorfenapyr AS,2.5％ beta-cyfluthrin EC,100 g/L ethiprole SC,5％ hexythiazox EC and 240 g/L sulfoxaflor SC were not rapidly available to control Contaria sp.,and all the control effects were below 70％ in three days after treatment.[Conclusion] The 6 000 times solution of 240 g/L spirotetramat SC,the 7 000 times solution of 25％ thiamethoxam WG and the 1 500 times solution of 48％ chlorpyrifos EC have stable control effects to Contaria sp..