河南发现雪松枝枯病雪松Ｃｅｄｒｕｓｄｅｏｄａｒａ属松科雪松属，是世界著名园林观赏树种，在我国华东、华北地区城市园林中广泛引种栽培。但近年来，雪松枝枯病在河南省各地发生严重，造成大量雪松死亡。该病主要危害雪松主干，在侧枝上也有发生。最初发生顶梢干枯，后... Cedrus deodara found in Henan Cedrus deodara is a famous ornamental tree species in the world, widely introduced and cultivated in urban gardens in East China and North China. However, in recent years, Cedar’s disease has become serious in various parts of Henan Province, resulting in a large number of cedar deaths. The disease harms the main cedar trunk, which also occurs on the side branches. The first occurrence of dry top, after ...