摘要
将室内毒力测定与田间试验相结合,系统分析了莴笋菌核病的发病规律及不同杀菌剂在关键防控时期的抑菌效果。结果显示,病原菌在15℃、相对湿度85%的环境中侵染能力最强。室内毒力测定显示,咪鲜胺和戊唑醇对菌丝生长的抑制效果显著;田间试验中,咪鲜胺、戊唑醇及苯醚甲环唑在预防期施用防效达82.39%~85.89%,显著优于其他处理组。实际生产中,推荐轮换使用咪唑类、三唑类及甲氧基丙烯酸酯类杀菌剂,以延缓抗药性的产生并提高防治效果。
Through the combination of indoor virulence determination and field experiments,the pathogenesis pattern of Lactuca sativa Sclerotinia sclerotiorum and the antibacterial effects of different fungicides during the critical prevention and control period were systematically analyzed.The results showed that the pathogen had the strongest infection ability in an environment of 15℃and a relative humidity of 85%.Indoor virulence determination showed that imazalil and tebuconazole had significant inhibitory effects on mycelial growth.In the field experiments,the control effects of imiumine,tebuconazole and fenethoxazole when applied during the prevention period reached 82.39%~85.89%,which was significantly better than that of other treatment groups.The results showed that it was recommended to rotate the use of imidazole,triazole and methoxy acrylate fungicides to delay the development of drug resistance and improve the control effect.
作者
邓立功
Deng Ligong(Customer Service Center of Anhui Susong Economic Development Zone,Anqing 246500,Anhui,China)
出处
《农业技术与装备》
2025年第7期140-142,共3页
Agricultural Technology & Equipment
关键词
莴笋菌核病
杀菌剂
关键防控时期
抗药性
Lactuca sativa Sclerotinia sclerotiorum
fungicide
critical prevention and control period
drug resistance
