棉铃虫是我市棉花上的主要害虫之一,进入九十年代以来,大发生频率高,危害十分严重。为寻找防治棉铃虫新型、高效、低毒药剂,1996年大丰市植保站引进扬州农药厂生产的5%氟铃脲乳油,并在四代棉铃虫盛发期对其进行药效试验,取得了较为理想的防治效果,结果报道如下。 Cotton bollworm is one of the major pests on cotton in our city. Since the 1990s, the frequency of large bollworm has been very high and the harm is very serious. In order to find out a new, high efficiency and low toxicity agent for controlling cotton bollworm, Dafeng City Plant Protection Station introduced 5% hexaflumuron EC produced by Yangzhou Pesticide Factory in 1996 and tested its efficacy during the fourth generation of cotton bollworm. The more ideal effect of prevention and control, the result is reported as follows.