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云杉灰毡凋萎病是1985年在黑龙江省绥稜林业局红皮云杉(Picea koraiensis Nakai)人工林中新发现的一种枝叶病害,被害严重,平均发病率达69.9％,平均病情指数达27.8％。
Withered gray fusarium wilt disease was a newly discovered foliage disease in the artificial forest of Picea koraiensis Nakai in Heilongjiang Province in 1985, which was severely victimized with an average incidence of 69.9%. The average disease index Up to 27.8%.