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广西大瑶山区灵香草的主要病害是细菌性软腐病,常导致烂叶烂顶,造成严重损失。其次有壳针孢叶斑病,病斑多时可引起落叶,且常有软腐病细菌混生,成为其侵入途径,加重软腐病的为害。1982年至1984年,针对这些病害(以软腐病为主)进行了室内外及田间一系列药剂筛选和防治试验,找出了:(1)农用链霉素200ppm+70％甲基托布津可湿性粉剂1000倍液;(2)农用链霉素200ppm+75％百菌清可湿性粉剂500倍液;(3)农用链霉素200ppm+25％多菌灵可湿性粉剂250倍液等三种配方,对软腐病有良好的防治效果,能有效地控制本病的蔓延为害,已在生产上大面积推广使用。
The main disease of Lingxiang grass in Guangxi Dayao Mountain area is bacterial soft rot disease, which often leads to rotten rot of rotten leaves and causes serious losses. Second conchospora leaf spot disease, disease spots can often lead to deciduous, and often soft-rot bacteria mixed, as its invasion, aggravate the damage of soft rot. From 1982 to 1984, a series of pharmacy screening and control tests were conducted for these diseases (mainly soft rot), and found out: (1) agricultural streptomycin 200ppm + 70% thiophanate-methyl Wettable powder 1000 times; (2) agricultural streptomycin 200ppm + 75% chlorothalonil WP 500 times; (3) agricultural streptomycin 200ppm + 25% Carbendazim WP 250 times and other three The formula has a good control effect on soft rot, which can effectively control the spread of the disease and has been widely used in production.