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近几年,为取得黄瓜的高产,在黄瓜病虫害防治上,主要依靠药剂防治,致使农药用量和施用次数增加,使一些病虫害的抗药性增强,造成更大量施用农药,污染了生态环境。为达到既高产,又能有效保护环境,需要进行在抗病品种选育基础上的以防为主的病虫害综合防治技术。一、种子
In recent years, in order to obtain high yield of cucumber, cucumber pest and disease control depends mainly on the prevention and treatment of pesticides. As a result, the dosage of pesticides and the number of applications are increased, leading to increased resistance of some pests and diseases, resulting in more pesticide application and pollution of the ecological environment. In order to achieve both high yield and effective protection of the environment, an integrated pest prevention and control technology based on the selection of disease-resistant varieties is needed. First, the seeds