黄瓜根腐病是保护地黄瓜栽培生产中发生普遍,危害严重的土传病害,其致病菌茄病镰刀菌瓜类专化型主要寄居于土壤中,通过形成大量厚垣孢子抵御外界不良环境,在土壤中存活时间可达3年以上,一旦遇到寄主便会萌发侵染,造成危害。近年来,由于日光温室黄瓜种植面积逐年扩大,且长期连作,加上作为砧木的黑籽南瓜品种单一,抗性降低,致使黄瓜根腐病在辽宁、 Cucumber root rot is a common and endangered soil-borne disease in cucumber cultivation and protection in the protected areas. Its pathogen Fusarium solani mainly lives in the soil, and forms a large amount of chlamydospores to resist the adverse environment , The survival time in the soil up to 3 years, in the event of host will germinate infection, causing harm. In recent years, cucumber root rot due to the greenhouse cucumber planting area has expanded each year, and long-term continuous cropping, coupled with a single black root pumpkin varieties as a rootstock, reduced resistance, resulting in cucumber root rot in Liaoning,