【摘要】 小白菜软腐病是小白菜夏季栽培中的常见病害。为了筛选出对小白菜软腐病具有显著性防效的药剂，本试验采用牛津杯抑菌圈测定法，通过建立回归方程，进行EC50值分析，测定了6种高效低毒的杀菌剂对小白菜软腐病菌的离体抑菌效果及防治效果。结果表明，20%春雷霉素水分散粒剂（WG）、3%中生菌素可湿性粉剂（WP）、50%氯溴异氰尿酸可溶粉剂（SP）、30%噻唑锌悬浮剂（SC）对软腐病菌均具有抑菌活性，且田间软腐病防效较好，可作为防治小白菜软腐病的优选杀菌剂。更多还原

【Abstract】 Soft rot is a common disease in summer cultivation of pakchoi cabbage. To select the suitable bactericides for control of soft rot of pakchoi cabbagee by Pectobacterium carotovorum, oxford-cup antimicrobial method was used to establish the regression equation and get EC₅₀ value, further analyzed combined with disease incidences,disease index and control effect in field. Results showed that kasugamycin 20% WG, zhongshengmycin 3% WP,chloroisobromine cyanuric acid 50% SP and zinc thiazole 30% SC had antibacterial activity against soft rot bacteria,and the control effect of soft rot was good, they could be used as the optimal bactericides for controlling soft rot.更多还原