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虫害“四定一查”是认真进行害虫系统调查和大田普查相结合 ,为农户进行虫害综合治理提供科学依据。节省防治成本 ,提高经济效益。
Pest “four set a check” is a serious investigation of pests and field census combined to provide a scientific basis for peasant comprehensive management of pests. Save on prevention costs and improve economic efficiency.