摘要
为了寻找保护性杀菌剂和内吸性杀菌剂复配比例及其对黄瓜蔓枯病的防治效果,选择嘧菌酯、多菌灵、噁霉灵、精甲 咯菌腈、福 福锌和噁酮 锰锌等6种杀菌剂,测定了6种杀菌剂对黑腐球壳菌(Didynnella bryoniae)菌丝的毒力,并对具有增效作用的复配药剂测定其对黄瓜蔓枯病的防治效果。结果表明:福 福锌和噁酮 锰锌对黑腐球壳菌菌丝的EC 50分别为16.166 mg L-1和58.740 mg L-1。福 福锌和噁铜 锰锌2者复配比例为m(福 福锌)∶m(噁酮 锰锌)=1∶1和m(福 福锌)∶m(噁酮 锰锌)=3∶2时,增效值(SR)分别为2653.57和399.58,增效作用明显高于其他比例,并且2种比例的复配剂对黄瓜蔓枯病的防治效果分别为85.72%和78.57%。由此表明,明福 福锌和噁铜 锰锌复配可以提高对黄瓜蔓枯病的防治效果。
six fungicides including Azoxystrobin,Carbendazim,Hymexazol,Metalaxyl-M Fludioxonil,Thiram Ziram,Famoxadone Mancozeb were screened and tested their toxicity of the hyphae of Didynnella bryoniae,a cucumber gummy stem blight pathogen,in order to find out their compound proportion of protective and systemic fungicides and the control effect with synergistic effect of compound fungicides to the disease in the pots.The results showed that the EC 50 of Thiram Ziram and Famoxadone Mancozeb to Didynnella bryoniae hyphae were 16.166 mg L-1 and 58.740 mg L-1,respectively.When the ratio of Thiram Ziram and Famoxadone Mancozeb were 1∶1 and 3∶2,the synergistic value(SR)of compound were 2653.57 and 399.58,respectively,higher significantly than others.Furthermore,the control effects of two compound agents on cucumber blight were 85.72%and 78.57%,respectively.As the result of the mix proportion of 1∶1 and 3∶2 with Thiram Ziram and Famoxadone Mancozeb,the formulations could improve the control effect on cucumber gummy stem blight.
作者
贺字典
高玉峰
董尊
李翠霞
范海荣
宋慧芳
李晓
HE Zidian;GAO Yufeng;DONG Zun;LI Cuixia;FAN Hairong;SONG Huifang;LI Xiao(College of Agronomy and Biotechnology,Hebei Normal University of Science&Technology,Qinhuangdao Hebei,066600;Journal Editorial Department,Hebei Normal University of Science&Technology;State-owned avant-garde forest farm in Pingquan City,Pingquan Hebei Province,China)
出处
《河北科技师范学院学报》
CAS
2019年第3期35-39,共5页
Journal of Hebei Normal University of Science & Technology
基金
河北省科技支撑农业关键共性技术攻关专项(项目编号:18226507D)
河北省蔬菜产业体系病虫害绿色防控岗位项目(项目编号:HBCT2018030207)
河北省自然基金项目(项目编号:C2019407103)
河北省高等学校科学技术研究重点项目(项目编号:ZD2019018)
作者简介
第一作者:贺字典(1972-),女,教授,博士,硕士研究生导师,主要研究方向:蔬菜和中草药病害诊断与防治。
