经调查 ,发现枇杷根腐病是由半知菌类 (Cylindrocladium)引起的一种土传病害 ,病菌以细小菌核、菌丝在土壤或病残体中越冬或长期存活 ,主要通过土壤、农具、灌溉和病残体传播 ,防治此病的关键在于从无病菌地引种 ,减少伤根 ,加强栽培管理 ,增强树势 ,药剂防治可选用 2 0 %粉锈宁 (三唑酮 ) 80 0倍 ,4 0 %福星 70 0 0倍 ,绿凡九五 5 0 0倍 ;72 %农用链霉素 4 0 0 0倍 ,进行灌根。 7～ 10 d后再灌淋 1次 ,效果更好 After investigation, it was found that loquat root rot is a soil-borne disease caused by Cylindrocladium. The pathogen is characterized by small sclerotia, mycelium overwintering or long-term survival in the soil or disease residues, mainly through soil and tools , Irrigation and the spread of sick and disabled, the key to prevent and cure the disease is to introduce from the germs without pathogen, reduce the root injury, strengthen the cultivation and management, and enhance the tree vigor. Pharmacological control 20 0% triadimefon (triadimefon) 80 0, 4 0% Fuxing 70 0 0 times, green where 955 0 0 times; 72% agricultural streptomycin 4 0 0 0 times for irrigation roots. After 7 ~ 10 d irrigation again, the effect is better