一、枯萎病 1.症状识别 地上部植株表现萎蔫,病株茎基部及根部可见其内部维管束组织变褐色,致使患部软化缢缩以至腐烂。 2.防治措施 ①与非瓜类蔬菜进行合理轮作。②用黑籽南瓜或90—1南瓜作砧木嫁接育苗。③育苗床每平方米用50％多菌灵8～10克进行消毒,培育无病壮苗。④浇水要适量,避 First, the wilt disease 1. Symptom identification Plants above the wilting wilting, diseased stem base and root can be seen in the internal vascular bundle brown, causing the affected area to shrink and even decay. 2. Control measures ① and non-melon vegetables to make a reasonable rotation. ② black seed pumpkin or pumpkin grafted 90-1 for seedlings. ③ nursery bed per square meter with 50% carbendazim 8 to 10 grams for disinfection, nurturing disease-free seedlings. Watering amount, avoid