油菜菌核病菌对多菌灵的抗药性及其治理初报

• 作 者: 潘以楼 刘福海 徐志平 丁蓝蓝 倪寿坤 杨敬辉 朱桂梅
• 机 构: 江苏丘陵地区镇江农业科学研究所!句容212400,金湖县植保植检站,宜兴市植保植检站,如东县植保植检站,句容市植保植检站,江苏丘陵地区镇江农业科学研究所!句容212400,江苏丘陵地区镇江农业科学研究
• 出 处: 江苏农业科学
• 发表日期: 2000年03期
• 关键词: 油菜 油菜菌核病菌 抗药性监测 抗药性治理

1996～ 1998年在江苏省油菜主产区采样测定表明 ,在多数样点都发现抗多菌灵的油菜菌核病菌 ,平均抗性菌株的比例达 7 8%～ 9 7%。经室内的杀菌剂复配、筛选和田间小区试验、大区对比试验和多点示范应用结果显示 ,35%菌核清可湿性粉剂以 35g/亩在盛花期喷雾一次 ,对油菜菌核病的防治效果达 70 %～ 80 % ,明显高于多菌灵的防病效果。且经测定表明 ,多菌灵施药区油菜菌核病菌抗多菌灵菌株的比例明显上升 ,而菌核清施药区的抗性菌株比例有极大的下降

From 1996 to 1998, sampling in the main producing areas of rapeseed in Jiangsu Province showed that most of the samples were found to be resistant to carbendazim sclerotinia with average resistant strains ranging from 78% to 97%. The indoor fungicide compound, screening and field plot test, large area contrast test and multi-point demonstration of application results show that 35% sclerotia WP at 35g / mu in full bloom flowering once, on rape Sclerotinia Control effect of 70% to 80%, significantly higher than the carbendazim effect of disease prevention. The results showed that the proportion of carbendazim resistant to carbendazim in the carbendazim pesticide application area increased significantly, while the proportion of resistant strains in the sclerotia drug application area decreased greatly