“六六六”、杀虫脒等防治水稻螟虫的农药因其高残留、高毒被禁用后，取代农药杀虫双残效期仅为７ｄ，而当地螟虫发蛾期在４０ｄ左右，农药有效期短与螟虫发蛾时间长形成矛盾，水稻螟虫防治难以达到防治指标，而且成本高。为解决这一矛盾，设置载体漂浮法防治水稻螟虫试验。 １ Pesticides such as chitosan and chlordimeform for controlling rice stem borers were only 7d instead of pesticides because of their high residue and high toxicity. However, the local counter-measures of pest insects and pests were only about 40 days, and the pesticides had a short effective period And the stem borer hair moth long form a contradiction, prevention and control of rice stem borers difficult to achieve prevention and control targets, and high cost. In order to solve this contradiction, the carrier floating method was used to control rice stem borers. 1