根腐康对苹果树圆斑根腐病的防治试验

Control Study of Genfukang on Round-Spot Root Rot Disease of Apple Trees

以陕西当地苹果树为试材,利用根腐康2倍药量的清水稀释液,根据树体大小输入不同的剂量,研究根腐康对苹果树圆斑根腐病的防治效果。结果表明:休眠期使用对多年反复发生的根腐病有预防的效果;生长期枝叶表现出明显病症后使用,对于当年初发病树用药后20d病枝重新长出新叶,1个月病枝叶片长大,树势彻底恢复。表明根腐康树体输液能有效治疗苹果圆斑根腐病,也为林木茎干、根部病虫害的防治起到积极效果。

Local apple trees in Shaanxi were used as test material,using two times dose the water dilution of Genfukang,according to the size of the tree enter different doses,control effect of round-spot root rot disease of apple trees were studied.The results showed that in period of dormancy for many years with recurring root rot had control efficiency;using diluent after the leaves showed significant symptoms in growing season,new leaves come out from the affected branches 20 days later and recovered one month later.It showed Genfukang transfusion were effective treat on round-spot root rot disease of apple trees,also had positive effect of pest control from trees stems,roots.