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6月份我省南部主要有棉红蛛蜘、棉蚜、棉铃虫,北部主要有草地螟、粘虫以及蔬菜病虫害。1.防治棉花虫害棉红蜘蛛、棉蚜繁殖力强、蔓延快,在防治时要快,药效要高。要搞好田间虫情调查,观察自然天敌的控制能力,不能盲目用药,只有在天敌不能控制的情况下,再使用农药。如天敌与蚜虫比例不到1:150时可用药防治。能挑治的尽量挑治,尽量减少用药次数。主要的防治办
June cotton spider spider mite, cotton aphid, cotton bollworm in the southern part of our province, the main northern meadow moth, armyworm and vegetable pests and diseases. 1. Prevention and control of cotton pests Cotton spider mite, cotton aphid strong reproductive power, spread fast, faster in prevention and treatment, efficacy is higher. It is necessary to do a good job of investigating insect pests in the field and observing the control ability of natural enemies. We should not blindly use drugs and only use pesticides when the natural enemies can not control them. Such as natural enemies and aphids than the ratio of less than 1: 150 when the drug control. Can pick the rule of treatment as far as possible, try to reduce the number of medication. The main control office