设施栽培中,危害甜瓜的病虫种类多,尤其病害发生较为严重,已成为当前甜瓜设施栽培产量不高不稳的主要因素。甜瓜苗期病害主要有猝倒病、立枯病、灰霉病等。生长期根部病害主有要枯萎病、蔓枯病、疫病等。防治中贯彻“预防为主、综合防治”的植保方针,培育和选 In cultivation facilities, many kinds of pests and diseases are harmful to melon, especially the diseases are more serious, which has become the main factor of the current unsteady yield of melon plantations. Melon seedling disease mainly damping-off disease, blight, gray mold and so on. The root cause of the growth period of the main wilt disease, blight, blight and so on. Prevention and control in the implementation of “prevention-based, integrated prevention and cure,” the plant protection approach, nurture and election