保护地黄瓜褐斑病的诊治

Diagnosis and Control of Corynespora cassiicola in Cucumber

通过几种相似病害的比较,明确了黄瓜褐斑病的症状表现,为早期防治提供依据。室内测定几种常用杀菌剂对黄瓜褐斑病菌的敏感性。咪鲜胺、苯醚甲环唑、氟硅唑、吡唑醚菌酯对菌丝的抑制作用明显;百菌清、百泰、代森锰锌、醚菌酯抑制孢子萌发效果显著。

Corynespora cassiicola in cucumber is diagnosed easily by several similar diseases in symptoms.It is helpful to control disease in early period. The sensitivity of several fungicides to control Corynespora cassiicola in cucumber＇were evalutated for inhobitied Corynespora cassiicola in laboratory. The experiment that was made in the laboratory with inhibiting mycelium growth showed that prochloraz, score, flusilazole and pyraclostrobin treatment provided outstanding inhibition efficiency to the fungus, in inhibiting spore germination test best controlled efficacy of Pyraclostrobin ＋ metriam, chlorothalonil, Mancozed and kresoxim-methyl treatment. Thiophanate-methyl and tebuconazole were better.