菌毒清防治核桃腐烂病效果显著核桃树腐烂病是核桃生产中的一个重要病害，特别是山区老果园更是发生普遍。据调查，北京市平谷县靠山集乡彰作村和小东沟村的核桃树腐烂病发病率达９０％以上。１９９５年在彰作村试验，全年随时检查核桃腐烂病发生情况，确定病斑大小并及时... Treponema pallidum prevention and treatment of walnut rot disease significant effect Walnut tree rot disease is an important disease in the production of walnuts, especially the old mountain orchards is even more common. According to the survey, the incidence of walnut tree rot disease in the village of Changzuo and Xiaodonggou in Pingji County, Beijing is over 90%. Changzhu village in 1995 test, check the incidence of walnut rot disease at any time throughout the year to determine the lesion size and timely ...