论文部分内容阅读
番茄棉铃虫对多数化学农药产生了较强的抗性,给防治带来了极大的困难,也给发展无公害蔬菜生产增加了难度。为寻求既有一定的速效性又具较长持效期的高效、低毒新型杀虫剂,笔者于2002年9月进行了1亿PIB·g-1棉铃虫NPV·2％高氯可湿性粉剂(WP)防治番茄棉铃虫的田间药效试验,取得了较好的效果。1 材料与方法1.1 药剂及处理 1亿PIB·g-1棉铃虫NPV·2％高氯WP(有效成分为棉铃虫核型多角体病毒+高效氯氰菊酯,广西田园农用化学品有限公司生产);10亿PIB·g-1棉铃虫NPV WP(有效成分为棉
Tomato bollworm has produced strong resistance to most chemical pesticides, brought great difficulties in prevention and treatment, and also made it more difficult for the development of pollution-free vegetable production. In order to find a new type of pesticide with high efficiency and low toxicity, which has both quick-acting and long-lasting effects, the author carried out 100 million PIB · g-1 bollworm NPV in September 2002 and 2% high chlorine wettability Powder (WP) to control tomato bollworm field efficacy test, and achieved good results. 1 Materials and methods 1.1 Pharmacology and treatment 100 million PIB · g-1 cotton bollworm NPV · 2% high-chloride WP (active ingredient is Helicoverpa armigera nucleopolyhedrovirus + cypermethrin, Guangxi Pastoral Agrochemical Co., Ltd.) 10 Billion PIB · g-1 Helicoverpa armigera NPV WP (The active ingredient is cotton