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茶尺蠖(Ectropis Obliqua hypulina Weh.)是苏、浙、皖等省茶树上的主要食叶害虫,为害极为严重,当前对该虫的防治仍以化学农药为主。由于农药的残毒性,国际上对茶叶中农药残留量的限制越来越严格,因此探索茶尺蠖其他防治途径具有重要意义。自1984年以来,我们在茶园发现有大量茶尺蠖因真菌流行病而死亡的现象,有时对茶尺蠖的大发生起了很好的控制作用。为了充分利用这一自然抑制作用,我们进行了初步的观察研究,现将结果初报如下。
Ectropis Obliqua hypulina Weh. Is the main leaf-eating pests on the tea plants of Jiangsu, Zhejiang and Anhui provinces. The damage is very serious. At present, the control of this insect is still dominated by chemical pesticides. Due to the residual toxicity of pesticides, the international restrictions on pesticide residues in tea are becoming more and more stringent. Therefore, it is of great significance to explore other ways to prevent and control the disease. Since 1984, we have found a large number of tea scops in the tea plantation due to fungal epidemics and sometimes have a good control over the occurrence of tea scrofula. In order to take full advantage of this natural inhibition, we conducted a preliminary observation and research, the results are as follows.