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锐劲特(氟虫腈)是一种苯基吡唑杀虫剂,杀虫谱广,对害虫以胃毒作用为主,并有触杀和一定的内吸作用,因其卓越的杀虫效果,近年来已被大面积推广使用,用于防治水稻螟虫、稻纵卷叶螟、稻蓟马、稻飞虱、稻象甲、小菜蛾及蝼蛄、金针虫、蝗虫等多种害虫。只要使用很低的剂量就能取得理想的防治效果,而且持效期长,一般为2～4周,最长可达6周。锐劲特对水稻、棉花、大豆等多种作物还具有促进生根、分枝、分蘖和增加叶片叶绿素的作用,从而增加作物产量。因此越来越受到农民的欢迎。根据笔者调查,在使用锐劲特时,有几个技术问题应加以注意。
Fipronil (fipronil) is a phenylpyrazole insecticide, insecticidal broad spectrum of pests to stomach poisoning and contact toxicity and certain systemic absorption, because of its excellent insecticidal effect In recent years, it has been widely used in the prevention and control of rice stem borer, rice leaf roller, rice thrips, planthoppers, rice weevil, diamondback moth and slugs, insects, locusts and other pests. As long as the use of very low dose can achieve the desired effect of prevention and treatment, and long lasting, usually 2 to 4 weeks, up to 6 weeks. Rexroth also increases the yield of crops by promoting rooting, branching, tillering and chlorophyll uptake in a variety of crops such as rice, cotton and soybeans. So more and more welcomed by peasants. According to the author’s investigation, there are several technical issues that should be paid attention to when using Rexroth.