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经调查鉴定草乌白绢病由齐整小核菌(SclerotiumrolfsiiSacc.)引起;对分离纯化的病菌进行室内毒力测定试验表明,药剂浓度为1400μg/ml以下时,75%百菌清WP和70%甲基硫菌灵WP的抑菌率均为98%以上;田间防治试验结果表明,70%甲基硫菌灵WP500、1000倍液对草乌白绢病的防治效果较好,为76.3%和65.8%。
After investigation, it was identified that Scirpus tinctorius was caused by Sclerotium rolfsii Sacc. The indoor virulence assay of isolated and purified bacteria showed that 75% chlorothalonil and 70% Methyl thiophanate WP antibacterial rate of more than 98%; field control test results show that 70% thiophanate-methyl WP500, 1000 times better control of turf disease control rate of 76.3% and 65.8%.