大生M—45防治链格孢属Alternaria　Nees真菌病害研究

Study on Dithane M-45 Controlling Alternaria Genus Fungi Diseases

田间试验表明，８０％大生Ｍ—４５可湿性粉剂对链格孢属真菌（Ａｌｔｅｒｎａｒｉａｓｐｐ．）病害具有良好的防治效果。其中，番茄早疫病适宜使用浓度为４００～８００倍液，苹果斑点落叶病、梨黑斑病、葡萄穗轴褐枯病适宜使用浓度均为８００～１２００倍液。

The field experimental results have shown that Dithane M-45 80% WP had better controlling effects to Alternaria genus fungi diseases,and the best suitableconc. of controlling A. solani was 400～800 dilution,and controlling A. mali A. 、A. kikuchiana and A. viticola were 800～1200 dilution.