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目前,我省发展果树生产主要威胁来自两个方面,一是冻害,二是病害。在病害中以苹果腐烂病、苹果黑星病、李子红点病危害较重,至今没有理想药剂。DT(又称丁二酸铜)是一种杀菌剂,1979～1981年对上述三种病害进行了防治试验,结果简要总结如下。
At present, the main threats to the development of fruit trees in our province come from two aspects. One is frost damage and the other is disease. In the disease to apple rot disease, apple scab, plum red dot hazard more serious, so far no ideal agent. DT (also known as copper succinate) is a fungicide, from 1979 to 1981 three kinds of disease prevention and control tests, the results are summarized as follows.