番茄晚疫病防治药剂筛选初报

Field Screening of Fungicides Against Tomato Late Blight

为筛选防治番茄晚疫病的有效药剂,通过喷雾的方法在保护地进行了6种药剂的田间药效筛选试验。结果表明:6种药剂均能有效防治番茄晚疫病,各处理剂量对番茄生长无不良影响。其中687.5g/l氟菌·霜霉威悬浮剂70g.ai/hm2的防效较好,达79.51%,但与500g/l氟啶胺悬浮剂200g.ai/hm2、25%吡唑醚菌酯悬浮剂45g.ai/hm2和250g/l嘧菌酯悬浮剂70g.ai/hm2无显著差异,较好于80%代森锰锌可湿性粉剂2000g.ai/hm2和50%烯酰吗啉可湿性粉剂200g.ai/hm2的防效,差异显著。

In order to screening fungicides against tomato late blight, 6 fungicides were tested in open field. The results showed that all fungicides could efficient to control tomato late blight without side effects. 687. 5g/1 of Propamocarb hydrochloride at 70 g. ai/hm2 can efficient control tomato late blight, it reached 79. 51%. It＇s not significantly to 500g/1 of Fluazinam at 200g. ai/hm2 ,25% of Pyraclostrobin at 45 g. ai/hm2 ,250g/1 of Azoxystrobin at 70 g. ai/hm2,but it＇s better than 80% of Mancozeb at 2000 g. ai/hm2 and 50% of Dimethomorph at 200 g. ai/hm2的, the difference is significantly.