秋季蔬菜主要是耐寒、耐低温的十字花科蔬菜、葱蒜类蔬菜,以及秋延后茄果类、豆类、瓜类蔬菜。前期气温高,适合蔬菜的生长发育,病虫害发生亦较多,后期气温低,病虫害较少,大多为露地栽培,对蔬菜造成毁灭性的病虫害概率较低,因而菜农对蔬菜病虫害的防治管理较为粗放,往往没有春、夏重视,但有些为秋季蔬菜常发性病虫害,若不及时防治,对蔬菜可造成30%以上的损失,应予以重视。一、秋季蔬菜易发的主要病害病毒病十字花科蔬菜秋季危害最重。一是及时防蚜。二 Autumn vegetables are mainly cold, low temperature cruciferous vegetables, onion and garlic vegetables, as well as the autumn delayed eggplant, beans, melons vegetables. Early high temperature, suitable for the growth and development of vegetables, pests and diseases also occur more late post-low temperature, fewer pests and diseases, mostly open field cultivation, vegetable pests and diseases caused by the low probability of failure, and vegetable farmers pest control and management of vegetables more extensive , Often no spring, summer attention, but some of the autumn vegetables often pests and diseases, if not timely prevention and control of vegetables can cause more than 30% loss should be taken seriously. First, the main diseases prone autumn vegetables virus disease cruciferous vegetables hardest in the fall. First, timely anti-aphid. two