技术蚜虫是蔬菜生产中的重要虫害,华北地区1年发生10余代,严重危害寄主植物,造成叶片蜷缩变形,生长停滞,分泌的蜜露使叶片发生杂菌,严重影响光合作用,致使叶片提早干枯死亡,植株不能正常抽薹、开花、结实另外,蚜虫还能传播多种病毒,传毒所造成的危害远远大于蚜虫本身的危害应运 Technology Aphids are important pests in vegetable production. In North China, more than 10 generations occur in one year, which seriously endangers the host plants, causing the leaves to curl and deform, causing the growth to stagnate. The secreted honeydew causes the bacteria in the leaves to seriously affect the photosynthesis and cause the leaves to develop earlier Dry dead, the plant can not be normal bolting, flowering, strong In addition, aphids can spread a variety of viruses, the harm caused by poisoning is far greater than the harm of aphids itself should be shipped