葱姜类蔬菜包括:葱、蒜、姜、圆葱和韭菜等。在这些蔬菜上常发生的病害和虫害有葱类锈病、葱类霜霉病、葱类紫斑病、姜瘟病、葱蝇、韭菜迟眼蕈蚊、葱蓟马、葱潜叶蝇、蛴螬类等。在这些病虫害中,哪些对生产危害大?哪些是我们主要的防治对象?现介绍如下: 1.葱类霜霉病 葱类霜霉病是大葱、圆葱的重要病害,除危害大 Onion ginger vegetables include: onion, garlic, ginger, onion and leeks. Diseases and pests commonly occurring on these vegetables include onion rust, onion downy mildew, onion scab, ginger blast, onion fly, leek larvae, thrips, onion leaf miner, catfish and the like . In these pests and diseases, which is harmful to the production of large? What is our main control object? Now described as follows: 1. Onychomycosis downy mildew onion is an important disease onions, onions, in addition to great harm