通过调查、观测,掌握了红松根朽病在勃利县林区发病规律以及环境因素对该病害的影响。结果表明,红松根朽病的发病规律为：郁闭度大的林分病害较重,阴坡重于阳坡,山中下腹重于山上腹;使用树干基部涂药和根部注药相结合的方法防治效果最好,防治效果达95%以上。%Through survey observation,occurrence pattern of roo-rot of Pinus koraiensis in Boli county influence of environmental factors on this disease were mastered.Occurrence pattern of root-rot of Pinus koraiensis is that： plant disease of stand with large canopy density is severe;plant disease on shady slope are severe than that on sunny slope;plant disease on middle lower part of the mountain is severe than that on upper part of the mountain;combining the method of drug-coated on the base of the trunk and root injection can get the optimal control effect,which being 95% or more.
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