3种药剂对草莓白粉病的防效评价  

Evaluation of Three Fungicides Control Efficacy on Strawberry Powdery Mildew

作　　者：李娜[1] 张从顺 张涛 石延霞[1] 谢学文[1] 柴阿丽[1] 李宝聚[1] 

机构地区：[1]中国农业科学院蔬菜花卉研究所,北京100081 [2]北京市植物保护站,北京100029

出　　处：《中国蔬菜》2015年第3期45-48,共4页China Vegetables

基　　金：北京市农业局农业科技试验示范项目(20120617)

摘　　要：通过盆栽试验和大田试验,测定了42.5%吡唑醚菌酯·氟唑菌酰胺SC(2000、3000、4000倍液)、30%氟菌唑WP(2000、2400、3000倍液)和50%醚菌酯WG(2000、3500、5000倍液)3种药剂对草莓白粉病的防治效果。结果表明:盆栽药效试验中,42.5%吡唑醚菌酯·氟唑菌酰胺SC2000倍液对草莓叶片白粉病的防效为90.81%,显著高于其他处理;30%氟菌唑WP最高防效为85.58%;50%醚菌酯WG最高防效为76.21%。大田试验中,42.5%吡唑醚菌酯·氟唑菌酰胺SC2000倍液对草莓叶片和果实白粉病的防效也最高,分别为98.20%和67.49%;30%氟菌唑WP最高防效分别为74.72%和60.78%;50%醚菌酯WG最高防效分别为76.00%和49.01%。3种药剂对草莓白粉病均具有不同程度的防效,对叶片白粉病的防治效果好于果实白粉病害,且试验浓度条件下无药害产生。In order to evaluate the efficacy of 3 fungicides at different concentrations on strawberry powdery mildew(Sphaerotheca aphanis),pot experiment and field trials were performed in the current study.The results of pot experiment showed that 42.5%Pyraclostrobin·Fluxapyroxad SC diluted for 2 000 times showed the highest control efficacy on strawberry powdery mildew occurring on the leaves,and its control efficacy reached 90.81%,significantly higher than that of the other treatments.The control efficacy of 30%Triflumizole WP and 50%Kresoxim-methyl WG in pot experiment were 85.58%and 76.21%,respectively.In the field trials,42.5%Pyraclostrobin·Fluxapyroxad SC diluted for 2 000 times produced the best efficacy against strawberry powdery mildew on leaves and fruits.Their control rates were 98.20%and 67.49%,respectively.While,the best control efficacy of 30% Triflumizole WP were 74.72% and 60.78%,respectively.The best control efficacy of 50%kresoxim-methyl WG were 76.00% and 49.01%,respectively.Therefore,these 3 fungicides showed different efficacities against strawberry powdery mildew and all had no injury,all these 3 fungicides produced better efficacy on strawberry powdery mildew occurring at leaves than on fruits.

关 键 词：草莓白粉病 防治效果 药剂筛选 

分 类 号：S436.68[农业科学—农业昆虫与害虫防治]