根腐病的防治

• 作 者: 代元清
• 机 构: 焦作市农牧局
• 出 处: 河南农业
• 发表日期: 1994年05期
• 关键词: 根腐 发病株率 叶缘 叶簇 春林 了因

焦作市解放区春林果园,近两年来出现了因根腐病面死树的问题,特别是生长在地角地边的果树较为严重。其特征是:开始有些树叶簇萎蔫,叶片上卷,有的树枝叶青枯,有的叶缘枯焦,最后全株死亡。仅两年,发病株率达10%以上,死树3%,并有漫延上升的趋势。 据初步调查,发生根腐病的原因为: 一.该果园是开垦的山坡生荒

In Jintong Jiefang District, Chunlin Orchard, the last two years there has been a problem of dead trees due to root rot, especially the fruit trees that grow on the edge of the ground are more serious. Its features are: some began to wither leaves, the leaves on the roll, some branches and leaves withered, and some leaf margin Kujiao, the last whole plant died. Only two years, the incidence rate of more than 10% of trees, dead trees 3%, and there is a trend of spreading upward. According to the preliminary investigation, the root rot causes are as follows: 1. The orchard is reclaimed hillsides