黄瓜褐斑病防治药剂的活体筛选

In Vivo Studies on Screening Effective Fungicides against Corynespora cassiicola

选取蔬菜上常用的11种杀菌剂,运用活体微量筛选方法,测定了供试药剂对黄瓜褐斑病的生物活性,并挑选出活性最好的4种药剂进行田间小区试验。试验结果表明:所选的4种药剂75%百菌清可湿性粉剂、50%福美双可湿性粉剂、25%咪鲜胺乳油和70%代森锰锌可湿性粉剂对黄瓜褐斑病的田间最高防效可分别达到92.71%、89.16%、87.31%和73.20%,是防治黄瓜褐斑病的优良杀菌剂。

Eleven common fungicides were chosen to investigate the effectiveness against Corynespora cassiicola by in vivo bioassay, among which the best four were selected for field trial. The results showed that Chlorothalonil 75 % WP, Thiram 50 % WP,Prochloraz 25 % EC and Mancozeb 70 % WP were good fungicides against C. cassiicola,with control efficacy 92.71% ,89.16 % ,87.31% and 73.20 % ,respectively.