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研究了高效氯氟氰菊酯微囊悬浮剂与二阶段法对红火蚁的田间防治效果。结果表明,0.25 g/L高效氯氟氰菊酯微囊悬浮剂施药后击倒红火蚁迅速,14 d后活动蚁巢减退率、工蚁减退率、蚁巢级别降低率、综合防治效果均达到100%。使用0.045%茚虫威饵剂搭配0.25 g/L高效氯氟氰菊酯微囊悬浮剂的二阶段法,5 d后红火蚁的活动蚁巢和工蚁数量均显著下降,14 d后活动蚁巢减退率、工蚁减退率、蚁巢级别降低率、综合防治效果均达到100%。结果表明,0.25 g/L高效氯氟氰菊酯微囊悬浮剂对红火蚁具有高效的控制作用,在实际使用时可根据防治面积的大小选择单独灌巢还是配合饵剂的二阶段法。
The control effect of lambda-cyhalothrin microcapsule suspending agent and two-stage method on red imported fire ant was studied. The results showed that 0.25 g / L lambda-cyhalothrin microcapsule suspending agent quickly knocked down R. sinensis, and after 14 d, the activity of ant nests decreased, the reduction rate of worker ants, the reduction rate of ant nests, and the comprehensive control effect were all reached 100%. After two days of using 0.045% indoxacarb bait with 0.25 g / L lambda-cyhalothrin microcapsule suspending agent, the numbers of active ant nests and worker ants decreased significantly after 5 d, and the ant nests became active after 14 d The rate of decline, the reduction rate of worker ants, the reduction rate of ant nests, and the comprehensive control effect all reached 100%. The results showed that 0.25 g / L lambda-cyhalothrin microcapsule suspension could effectively control R. solani. In actual use, the two-stage method of single-nesting or baiting can be selected according to the size of control area.