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油梨根病由多种病原引起，目前已发现的有：油梨疫霉菌根腐病，油梨黑纹根病、油梨丝葚菌根腐病及油梨担子菌根腐病4种。它们各有不同的病症。通过杀菌剂抑菌试验表明甲基硫菌灵效果最好。并根据油梨根病的侵染规律，提出防治的方法及栽培管理措施。
Radix root disease caused by a variety of pathogens, has been found to have: Phytophthora oleanolicum rot, black pear radish, black pear root rot and avocado root rot 4 species. They each have different conditions. Bactericidal antibacterial test showed that thiophanate-methyl best. In accordance with the law of infection of Radix root disease, the methods of prevention and cure and cultivation management measures were put forward.