猝倒病为害多数针叶树、小粒种子的阔叶树和农作物,系世界性病害,国外早有研究,国内五十年代末、六十年代初亦有较多研究和报道。我州云南松荒山造林,过去实行直播,病害不突出。然而,鼠鸟虫害盛行,尤其是低山地带高温及干旱严重,常导致完全失败。近年来试植容器苗,成活率高达80％左右。然而,猝倒病严重,各地死苗率高达50—90％。为此1983年进行了一些防治措施的验证试验。 Dust catches the brunt of most conifers, small seeds of broadleaf trees and crops, Department of disease worldwide, early studies abroad, the domestic late fifties, early sixties also have more research and reports. Yunnan afforestation pine hills in Yunnan, the past live broadcast, the disease is not prominent. However, the prevalence of bird feathers and pests, especially the high temperatures and droughts in the low mountains, often lead to complete failure. In recent years planting container seedlings, survival rate as high as 80%. However, the damping-off disease is so severe that the rate of dead seedlings is as high as 50-90%. To this end in 1983 conducted a number of prevention and control measures to verify the test.