日前,陕西省丹凤县平木镇农民吴建勋反映他们那儿花椒树得了一种病:开始新梢顶部生长缓慢,尖部嫩组织偶尔有褐色斑点,而后褐斑开始流胶,同时生长完全停止,下部叶片先黄后落,最后当年新梢几乎全部干枯,严重的椒园发病率在80%以上,有的还达到了100%。他说,由于大家不懂防治,病情仍在蔓延,希望专家们能为他们支招献策,排忧解难。据西北农林科技大学副 A few days ago, Wujian Xun, a farmer from Pingmu Town, Danfeng County, Shaanxi Province, reported that the pepper tree had a disease at the beginning of the shoot. The top of the shoot began to grow slowly. Occasionally, the tender shoots had brown spots occasionally. Then the brown spots started to gel and the growth stopped completely. The leaves first yellow and then fall, the last year almost all the shoots dry, the incidence of serious pepper Park in more than 80%, and some also reached 100%. He said that since we do not know how to prevent and control the disease is still spreading, we hope experts can make suggestions and solve problems for them. According to Northwest A & F University deputy