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由于农田生态环境和栽培条件变化的影响,小麦病虫危害呈逐年加重趋势,我省常年发生面积达一亿多亩次,损失小麦10亿公斤以上。当前防治措施仍以化学防治为主,存在许多突出问题,一是限于一病一虫单一用药防治;二是施药方法不科学、不规范;三是用药有盲目性。结果导致防治被动失时,成本高、效果差、费工费时,天敌杀伤
Due to the changes of farmland ecological environment and cultivation conditions, the harm of pests and diseases of wheat showed a trend of increasing year by year. The annual pest occurrence area in our province reached over 100 million mu and the loss of wheat was over 1 billion kilograms. The current control measures are still dominated by chemical control, there are many outstanding problems, one is limited to a single disease prevention and treatment of a single insects; second unscientific application of pesticides, non-standard; third blindness of medication. As a result, the prevention and treatment of passive loss, high cost, poor performance, time-consuming work, natural enemy killing