保幼激素类似物S－31183控制蚊虫孳生地效果观察

Observation on Effect of S-31183 0.5G for Mosquito Control in Ponds and Dairy Wasterwater Drain

笔者采用勺捞法及幼虫分离法，观察灭幼宝颗粒剂控制容器型及污水沟蚊虫孳生地的持续效果。当剂量为１２．５～１００ｍｇａ·ｉ／ｍ２时，有效抑制容器型蚊幼虫羽化达２１～４９天；当为１００ｍｇａ·ｉ／ｍ２剂量时，有效抑制污水沟蚊幼虫羽化达２８天。灭幼宝颗粒剂在污水沟表现具有较长的持效期。

It was reported that the residual effect of S-31183 0.5G for Mosquito control in ponds and dairy wasterwater drain was evaluated by the methods of dipper and larval isolation,S-31183 0.5G against mosquitoes provided effective inhibition of emergence for 21～49 days at 12.5～100mg a·i/m2 in the ponds and 28 days at 100 mg a·i/m2 in the drain, It showed superiority and long term control for mosquito breeding source.