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在湖北棉区,花铃期前期重点防治三代棉铃虫、斜纹夜蛾、棉叶螨等,后期重点防治盲蝽象、第四和五代棉铃虫、棉叶螨、斜纹夜蛾、烟粉虱、棉蚜及铃病等。可采用及时打顶心、摘边心、抹赘芽;打顶后适时化调;摘除斜纹夜蛾卵块;如雨水偏多,及时采摘病铃等方式减轻病虫害。药剂防治注意交替用药,避免害虫产生抗药性。
In the cotton area of Hubei Province, three generations of cotton bollworm, Spodoptera litura and cotton spider mite were preemptively prevented and treated in the early stage of the flower-boll stage. The later stage focused on the prevention and treatment of the bug-stink bug, the fourth and fifth generations of cotton bollworm, cotton spider mite, Spodoptera litura, Cotton aphid and bell disease. Can be timely top topping, pick the edge of the heart, wiping the bud; timely adjustment after the top off; removal of Spodoptera litura eggs; as much rain, pick the sick bell and other ways to reduce pests and diseases. Pharmacy prevention and control attention to alternating medication, to avoid pest resistance.