摘要
通过药剂防治、林间清除侵染源、清除侵染源结合喷药防治杨树灰斑病,观察防治效果,三种处理的平均防治效果分别为27%、60.2%和97.1%,清除侵染源后喷药防治比直接喷药防治更显著,防治效果更佳。
By chemical control, clear the infection source and clear the infection source combined spraying control Coryneum populinum, and observe the control effect, the average control effect of three treatments were 27%, 60. 2% and 97. 1%, clear the infection source after spraying control more than the direct spraying control, prevention and treatment was better.
出处
《青海农林科技》
2012年第3期67-68,共2页
Science and Technology of Qinghai Agriculture and Forestry
关键词
杨树灰斑病
侵染源
感病指数
防治试验
Coryneum populinum
Infection source
Susceptibility index
Control test
