68.75%噁酮锰锌水分散粒剂对黄瓜褐斑病的防治效果  

Control Efficacy of Famoxadone·Mancozeb against Corynespora cassiicola

作　　者：李晓红[1] 

机构地区：[1]辽东学院农学院,辽宁丹东118003

出　　处：《中国蔬菜》2016年第3期66-68,共3页China Vegetables

摘　　要：以黄瓜褐斑病〔Corynespora cassiicola(Berk.&Curt.)Wei.〕为供试病原菌,通过室内生物活性测定和田间小区防效试验,测定了噁酮锰锌对黄瓜褐斑病的防效。室内生物活性测定结果表明,噁酮锰锌和代森锰锌对黄瓜褐斑病菌的EC_(50)分别为1.16 mg·L^(-1)和6.23 mg·L^(-1)。田间试验结果表明,用68.75%噁酮锰锌水分散粒剂468.0、625.5、937.5 g·hm^(-2)连续3次施药后,对黄瓜褐斑病的防效可达到78.61%、89.33%和90.28%。且试验浓度下对黄瓜安全,无药害产生。Taking Corynespora cassiicola （ Berk. ＆ Curt. ） Wei. as pathogen, allied toxicity measurement in laboratory and field control efficacy trial on famoxadone . maneozeb were conducted. The results showed that EC50of famoxadone .mancozeb and maneozeb were 1.16 mg . L-land 6.23 mg. L-L-1 respectively. The results of field trial indicated that after 3 successive applying of 68.75% famoxadone . mancozeb WG at 468.0, 625.5, and 937.5 g . hm-2 dosages, the control effieaeies on Corynespora cassiicola could reach 78.61%, 89.33% and 90.28%, respectively. Under these concentrations, no side effect was observed on cucumber.

关 键 词：黄瓜褐斑病 噁酮锰锌 田间防效 

分 类 号：S436.421[农业科学—农业昆虫与害虫防治]