甜瓜枯萎病又称萎蔫病、蔓割病,在甜瓜生产上发生较重(图1),保护地栽培发生更重。全生育期均可发生,多以抽蔓期到结瓜期发病最重。一般发病率3%~5%,严重时发病株可达30%以上,明显影响产量。发病症状苗期染病:播种后发病出现烂种,苗期造成子叶或全株萎蔫,茎基部变褐缢 Melon Fusarium wilt, also known as wilt disease, vine-cutting disease occurred in the production of melon heavier (Figure 1), the protective cultivation occurred heavier. The whole growth period can occur, and more to pull the most period of fruiting period to fruiting. The general incidence of 3% to 5%, in severe cases up to 30% of the strains, significantly affect the yield. Morphological symptoms at seedling stage: the disease occurs after seeding rotten seedling, cotyledon or whole plant caused wilting, browning base