三氟苯嘧啶对稻飞虱的防治效果初报

摘要

基于褐飞虱对吡虫啉、吡蚜酮等药剂抗性较高这一现实问题,选取几种常见药剂与三氟苯嘧啶一起进行了水稻飞虱的田间药效对比试验.结果表明:10.6 g/L三氟苯嘧啶SC对水稻褐飞虱、白背飞虱防治效果均较好,药剂持效时间长,且对环境友好,可作为湖南水稻主产区防治水稻飞虱的首选药剂,但应注意与其他有效药剂轮换使用,避免飞虱较快产生抗药性.%Based on the reality of brown planthopper had high resistance to imidacloprid, pymetrozine and so on, the field efficacy test of rice planthopper was carried out with several common agents and triflunezopyrim. The results showed that: the prevention effect of 10.6 g/L triflunezopyrim SC on rice brown planthopper and white backed planthopper were better, medicine effective duration was long, and friendly to the environment, It can be used as the first choice for the prevention and control of rice planthopper in the main rice producing areas in Hunan, but it should be used in turn with other effective agents to avoid the rapid emergence of resistance to rice planthopper.