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近年来,应用杀菌油剂超低量喷雾防治林木病害,以其效果好、工效高、用工少等优点,被人们所重视。为了增加杀菌油剂种类、扩大其使用范围及探讨适于超低量喷雾的其它剂型被用来防治病害的可能性,我们于1981年—1984年,在吉林市松花江苗圃,应用9种杀菌油剂和水剂,对杨树灰斑病进行了超低量喷雾防治试验。现将情况报告如下:
In recent years, the application of ultra-low spray disinfectant spray disease prevention and control of trees, with its good effect, high efficiency, less labor and other advantages, people have been valued. In order to increase the types of bactericidal oil, to expand its scope of use and to explore the possibility of using other formulations suitable for ultra-low-level spraying to control diseases, we used nine kinds of bactericidal in the Songhua River nursery of Jilin City from 1981 to 1984 Oil agent and water agent, the poplar gray spot disease was sprayed with low amount of control. The situation is now reported as follows: