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打瓜近年来种植面积不断扩大,特别是今年面积猛增。为了帮助专业户和家庭农场种好打瓜,现将打瓜病虫害防治办法简介如下: 在病害方面: 1.白粉病:主要危害叶片,受害叶正反面及叶柄都着生一层白粉末的毒物(菌丝体和分生孢子),逐渐变为灰白色,叶片变黄、干枯,多在七月底八月份高温阶段发生。在灌水多,温度高,瓜秧生长过旺,通风透光不良的情况下,发病重。
In recent years, melon cultivation has been constantly expanding, especially in the area soared this year. In order to help specialized households and family farms planted melon, melon pests and diseases are now to fight against the introduction of measures are as follows: In the disease: 1. Powdery mildew: the main hazard leaves, the affected leaves both positive and negative petioles are poisoned by a layer of white powder ( Mycelium and conidia), gradually becoming gray, leaves turn yellow, dry, and more in late July at the end of high temperature occurs in August. In the irrigation and more, the temperature is high, the growth of cucumber seedlings over, poor ventilation and light circumstances, the incidence of heavy.