论文部分内容阅读
日光温室和春大棚黄瓜病虫害防治新技术日光温室和春大棚黄瓜产值高,但病虫害也多,植保是个重要的问题。据调查,主要病虫害有:霜霉病、黑星病、灰霉病、角斑病、炭疽病、蔓枯病、白粉病、蚜虫等。其中,霜霉病和蚜虫发生最普遍,而黑星病、灰霉病、角斑病、蔓枯病,为...
Solar greenhouse and spring greenhouse cucumber diseases and insect pest control technology Solar greenhouse and spring greenhouse cucumber production value is high, but also pests and diseases, plant protection is an important issue. According to the survey, the main pests are: downy mildew, scab, gray mold, angular leaf spot, anthracnose, gummy stem blight, powdery mildew, aphids and so on. Among them, downy mildew and aphids occur the most common, and scab, gray mold, angular leaf spot, gummy stem disease, as ...