摘要
瓦巴斯纹枯病[Pellicularia sasakii(Shirai)Ito.]是为害瓦巴斯(Wabasn)的主要病害,其寄主范围很广,为害10个科、26种植物。病菌主要侵染叶片与叶鞘,被害部初期呈水渍状暗绿色,边缘不明显,后逐渐扩大成椭圆形或云纹状。为害严重时导致成片枯黄。病害发生期为4～10月。病害流行的适宜气温为23～30℃。适宜的相对湿度为80%以上。在病害发生期用井岗霉素2000倍液防治,具有显著的防治效果。
Pellicularia sasakii (Shirai) Ito is the main disease destroies Wabasn. Havingwide host scope,it parasites on plants of 26 genera,10 families. Generally, the inroad positionof it is on leaf or leaf sheath. In the beginning, the intruded part assume dark green in waterdipping state and without clear border. Laterly, it expands gradually and assume elliptic orclouding form. On trees of seriously destroied, leaves become withered and yellow in largenumbers. This disease occurs during April-October. The suitable air temperature for it's epid-emic is 23℃-30℃; the suitable humidity is over 80%. During the occurence period, sprayingvalidacin (1:2000) can effectively control and prevent the disease.
出处
《浙江林业科技》
北大核心
1991年第3期39-42,共4页
Journal of Zhejiang Forestry Science and Technology
