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保护地蔬菜病虫害防治新技术——粉尘法,在京郊区保护地广泛采用,均取得良好的防治效果。 一、防治保护地蔬菜病虫害的好处:每亩保护地只需5-10分钟即可喷药完毕,比喷雾法提高工效20倍左右。据测定,粉尘法施药,有70％药剂能落在植株上,而采用喷
Protected vegetable pests and diseases prevention and control of new technologies - the dust method, widely used in protected areas in Beijing suburbs, have achieved good control effect. First, the prevention and control of vegetable pests and diseases of the benefits of protection: only need 5-10 minutes per mu of protected area to spray finished, than the spray method to improve work efficiency 20 times. It is determined that the dust method of application, there are 70% of the chemicals can fall on the plants, and the use of spray