油梨根腐病发病规律及防治技术

摘要

油梨根腐病是油梨根部重要病害，近年来逐渐增多，严重时可造成油梨整株死亡，已成为油梨产业发展的重要病害。目前广西已发现有4种油梨根腐病，是较难防治的土传病害。重点介绍4种油梨根腐病的特点、发生、病因、症状等，从农业、物理、生物、化学防治方面介绍油梨根腐病的防治技术。%Avocado root rot is one of the most important root diseases on avocado, the disease is increasing in recent years. It can cause the death of the whole plant of avocado when this disease becomes seriously. The avocado root rot disease has become an important disease in avocado industry. Nowadays, there are four kinds of avocado root rot diseases are found in GuangXi Province. It is more difficult to control these soil borne diseases. This paper introduces the traits, causes, symptoms and occurrence of avocado root rot disease. And then, the control techniques for avocado root rot in agricultural, physical, biological and chemical control field and so on are introduced.