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几种防治棉铃虫 (Heliothisarmigera)的新农药田间药效试验表明 ,防治第 3代棉铃虫较理想的药剂为华农一号 ,5 0 %甲·锌乳油和 4 0 %家福灵的持效期较短 ,2 5 %棉铃清乳油防治效果较差
Several new pesticide trials on Heliothis armigera showed that the most effective pesticides for controlling the third generation of H. armigera were Huaxin-1, 50% of methyl-zinc-ethyl lactate and 40% of fortinol Shorter, 25% cotton bollwill oil control effect is poor