杨树非侵染性枯萎病,近年来发生比较普遍。该病常会造成树木大量落叶,影响正常生长,是一种无病菌的病害,多发生于速生丰产林。引发杨树非侵染性枯萎病的原因主要有:干旱、沥涝、风害、日灼、盐碱、机械损伤、土壤截层、漏层等。 Poplar non-invasive Fusarium wilt, occurs more commonly in recent years. The disease often causes a large number of deciduous trees, affecting the normal growth, is a disease-free bacteria, occurred in fast-growing high yield forest. The main causes of non-invasive blight of poplar are: drought, flood, wind damage, sunburn, salinization, mechanical damage, soil interception, leakage and so on.