草莓白粉病是草莓生产中的常见病害.试验目的在于测试6.5％芳姜黄酮乳油对草莓白粉病的田间防治效果.用43％氟菌·肟菌酯悬浮剂和300 g/L醚菌·啶酰菌悬浮剂作为对照药剂,在上海市青浦区开展田间药效小区及大区试验.结果显示,小区试验末次用药后7 d 6.5％芳姜黄酮乳油稀释150倍液处理组防治效果为75.01％,显著优于对照药剂防治效果(P＜0.01).大区试验结果与小区试验结果趋势一致.说明6.5％芳姜黄酮乳油防治草莓白粉病效果良好,且对草莓植株安全,是一种具有开发潜力的新型植物源杀菌剂.
Abstract
Strawberry powdery mildew(Sphaerotheca aphanis)is a common disease in strawberry production.This study aims to test the field efficacy of a new plant-derived fungicide,ar-turmerone 6.5％EC,against powdery mildew in strawberry.In this study,two chemically synthesized pesticide fluopyram·trifloxystrobin 43％SC and pyraclostrobin·boscalid 300 g/L SC were used as control agent.The field efficacy test of pesticide in plot and in large area were carried out in qingpu district,shanghai,respectively.The results of test in plot showed that the control efficacy of ar-turmerone 6.5％EC(diluted 150 times treatment)was 75.01％at 7 days after the last application,which was significantly better than that of the two control fungicides(P＜0.01),and the results of the large area test followed the same trend as that of the plot test,which indicating that ar-turmerone 6.5％EC is a potential new phytochemical pesticide in control of strawberry powdery mildew and safe for strawberry plants growth.
关键词
植物源农药/芳姜黄酮乳油/草莓白粉病/田间药效
Key words
new phytochemical pesticide/ar-turmerone/strawberry powdery mildew(Sphaerotheca aphanis)/field efficacy
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