三种化学药剂对马铃薯晚疫病的防效评价

摘要

s: 720 g/L chlorothalonil SC,56％ metalaxyl-M·propineb WP,72％ cymoxanil·mancozeb WP,and the control fungi-cides 80％ mancozeb were carried out against potato late blight. The results showed that the control effect of three chemical fungicides were 79.6％,78.4％ and 81.0％,respectively,which were worth traditional fungicide 80％ mancozeb.%试验用720 g/L百菌清SC、56％精甲霜灵·丙森锌WP、72％霜脲氰·代森锰锌WP 3个杀菌剂与对照药剂80％代森锰锌WP对马铃薯晚疫病进行防治效果评价.结果表明,720 g/L百菌清SC、56％精甲霜灵·丙森锌WP和72％霜脲氰·代森锰锌WP高剂量对马铃薯晚疫病防效分别为79.6％、78.4％和81.0％,与传统对照药剂80％代森锰锌WP的防效相当.