【摘要】 采用“农药 -菌悬液混合”杀菌法 ,测定了农用链霉素等 4种单剂对番茄青枯病菌(Burkhokderiasolanacearum )的室内毒力测定 ,求出各单剂的EC50 ,并根据“按比例混合法”〔4〕复配 ,结果表明 :复配剂Ⅰ、Ⅱ、Ⅲ都有增效作用 ,其中以复配剂Ⅰ的增效作用最明显 ,最高杀菌率达97.4 % (农用链霉素与水合霉素以 1∶4混配所得制剂 ) ;其次是复配剂Ⅱ ,最高杀菌率为 91.5 % (农用链霉素与立枯净以 4∶1混配所得制剂 ) ;复配剂Ⅲ的增效作用最低 ,最高杀菌率为 79.3%。更多还原

【Abstract】 A test to determine the toxicological effect of four bactericides on tomato Burkhokderia solanacearum was performed using method of the mixture “bactericide-bacteria suspended aqua”.then calculate the EC 50 of the single bactericide and mix according to“the method of pro rata mixture”.The results showed that the mixture I,II,and III gave highly synergistic effect .The mixture I was the most remarkable,and it’s highest control effect was 97.4%(the optimal mixture ratio of sulphurate streptomycin and oxytetracycline hydrochloride was about 1∶4); The following was the mixture II,and it’s highest control effect was 91.5%(the optimal mixture ratio of sulphurate streptomycin and Likujing was about 4∶1); Their synergistic effect were superior to that of the mixture III whose highest control effect was 79.3%.更多还原