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玉米螟、棉铃虫是我市棉花后期常年重发型害虫,为害重,损失大。今年我市棉田三代玉米螟、四代棉铃虫相继重发,全代玉米螟百株累计卵量高达84块,四代棉铃虫百株累计卵量1677.1粒。为寻找防治棉花后期两大害虫高效药剂,本站于1996年三代玉米螟、四代棉铃虫盛发期引进盐城丰山集团生产的25%硫氰乳油对其进行试验,结果整理如下:
Corn borer, cotton bollworm perennial perennial recurrence of cotton in our city pests, damage heavy, large loss. This year our city cotton field three generations of corn borer, four generations of cotton bollworm have been re-issued, the entire generation of corn borer hundred strains of up to 84 eggs, four generations of cotton bollworm 100 eggs accumulated 1677.1 eggs. In order to find out the two pesticides for the prevention and treatment of late cotton efficient agents, this site in 1996, three generations of corn borer, four generations of cotton bollworm Sheng Fa Yancheng Yancheng Group introduced 25% of thiocyanate produced its test, the results are as follows: