烟草科技2019，Vol.52Issue(5)：14-19,6.
烟草赤星病防治药剂的筛选
Fungicide screening against tobacco brown spot
摘要
Abstract
To screen highly effective fungicides against tobacco brown spot caused by Alternaria alternata, indoor toxicity and field efficacy of five common fungicides (fluazinam, picoxystrobin, boscalid, cyprodinil and famoxadone) against A. alternata were determined. The results showed that fluazinam had the strongest inhibitory activity against mycelial growth, around 98% ; this was followed by cyprodinil and famoxadone at 95%. The EC50 of 98% fluazinam, 95% cyprodinil and 95% famoxadone for the mycelial growth of A. alternata were 0.138 2, 3.568 9 and 30.098 3 mg/L, respectively. The control efficacy of 50% fluazinam SC and 62% cyprodinil WG in field trials reached 70.44% and 63.09% , respectively. The field control efficacy of 50% boscalid WG was the worst, at only 39.53% . On the basis of these results, fluazinam and cyprodinil were recommended to control tobacco brown spot.关键词
烟草赤星病/链格孢菌/抑制活性/防效/氟啶胺/嘧菌环胺Key words
Tobacco brown spot/Alternaria alternata/Inhibitory activity/Control efficacy/Fluazinam/Cyprodinil分类
农业科技引用本文复制引用
朱宇航,黄思洋,陈华保,常小丽,闫芳芳,张宗锦,龚国淑..烟草赤星病防治药剂的筛选[J].烟草科技,2019,52(5):14-19,6.基金项目
中国烟草总公司山东省公司科技项目"红外反射光谱技术无损快速鉴别真伪卷烟研究与应用"(201403). （201403）
