杨树苗木带菌状况与溃疡病发生的关系  

The Relationship between Poplar Seedlings with Bacteria and the Occurrence of Canker

作　　者：李成凯 邵云华[2] 秦绪兵 战鑫 熊雄 LI Cheng-kai;SHAO Yun-hua;QIN Xu-bing;ZHAN Xin;XIONG Xiong(Laiwu Forestry Bureau of Shandong Province,Laiwu 271100,China;College of Plant Protection/Shandong Agricultural University,Tai’an 271018,China;Shandong Forest Pest Control and Quarantine Station,Jinan 250014,China)

机构地区：[1]山东省莱芜市林业局,山东莱芜271100 [2]山东农业大学植保学院,山东泰安271018 [3]山东省森林病虫害防治检疫站,山东济南250014

出　　处：《山东农业大学学报（自然科学版）》2018年第2期349-351,共3页Journal of Shandong Agricultural University：Natural Science Edition

基　　金：山东林业有害生物普查

摘　　要：为探索杨树带菌苗木与溃疡病之间的相关性,本文通过对莱芜市杨庄镇、羊里镇、牛泉镇、大王镇、口镇、方下镇等杨树病害统计调查,结合室内和田间诱发造林定植试验,结果表明:春季定植后杨溃疡病的暴发流行,主要来源于苗木带菌,不同苗源的苗木生长状况及带菌量不同,定植后发病与危害程度有较大差异,杨树苗圃周围发病大树多,杨苗带菌率高,定植后发病重。彻底清除苗圃周围病源,减少苗木带菌数量,苗期和栽前集中喷药预防,是控制该病的重要环节。To explore the relationship between poplar seedlings with bacteria and the occurrence of canker,this paper investigated and count diseased poplars from Yangzhuang town,Yangli town,Niuquan town,Dawang town,Kouzhen,Fangxia town etc,combing with planting test indoor and field.The results showed that outbreak of poplar canker after planting in spring mainly stemmed from seedling borne bacteria,the growth status and the quantity of bacteria carried by different seedling sources were different,the incidence and harm degree of colonization were different,there were many trees were influenced around poplar nursery.The rate of carrier of poplar seedlings was high and the incidence was heavy after planting,the key to control the disease was to eliminate the pathogens around the nursery,reduce the number of seedlings,and prevent the disease in the seedling stage and before the planting.

关 键 词：杨树 带菌苗木 溃疡病 

分 类 号：S435.311[农业科学—农业昆虫与害虫防治]