红火蚁防治中茚虫威饵剂使用剂量的确定

Dosage of the indoxacarb bait used to control Solenopsis invicta Buren

使用毒饵是有效控制红火蚁发生和危害的重要方法之一.研究明确了不同剂量0.045％茚虫威饵剂处理对不同活蚁巢密度红火蚁的防治效果,建立了4个活蚁巢密度、饵剂剂量和防治效果之间的关系方程,获得了防治红火蚁的0.045％茚虫威饵剂的理论使用剂量：单个蚁巢处理饵剂3～6 g、100 m^2面积撒施25～30 g.

The poisonous bait was one of the important methods used to control the red imported fire ant Solenopsis invicta Buren effectively. The controlling effects of different doses of 0.045% indoxacarb bait on different densities of S. invicta nests were revealed in this paper. And 4 models which described the relationship among the fire ant nest density, bait dosage and controlling effect were presented. The theory dosages of the indoxacarb bait in controlling fire ant were 3-6 g with treating single nest, and 25-30 g with broadcasting 100 m^2.