木薯炭疽病菌的室内杀菌剂筛选

Laboratory Screening of Fungicides against Pathogen of Cassava Anthracnose

采用菌丝生长速率法对两个来自海南的木薯炭疽病菌菌株进行了13种杀菌剂的室内筛选。结果表明,必扑尔(25%丙环唑EC)、咪鲜胺(25%咪鲜胺EC)和国光多菌灵(50%多菌灵WP)的EC50值最小,抑菌效果最好;敌克松(55%敌磺钠WP)和代森锰锌(50%代森锰锌WP)的EC50值最大,抑菌效果最差,建议生产上使用丙环唑、咪鲜胺和多菌灵等来防治木薯炭疽病。

Based on twoColletotrichum gloeosporioides isolates came from Hainan province, 13 fungicides were screened in laboratory by hypha growth rate method. Propiconazol 25 % EC, prochloraz 25 % EC and carbendazim 50 % WP were found to have the lowest EC50 value and good inhibition ofC. gloeosporioides isolates, whereas fenaminosulf 55 % WP and mancozeb 50 % WP had the highest EC50 value and poor inhibition, propiconazol, prochloraz and carbendazim were suggested to be applied in the field control of Cassava Anthracnose .