| 植物源杀菌剂大黄素甲醚防治黄瓜白粉病研究 |
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| 引用本文： | 杨宇红,龚惠之,杨翠荣,冯兰香,徐向荣,钱益新,谢丙炎.植物源杀菌剂大黄素甲醚防治黄瓜白粉病研究[J].中国蔬菜,2009,1(20):23-28. |
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| 作者姓名： | 杨宇红 龚惠之 杨翠荣 冯兰香 徐向荣 钱益新 谢丙炎 |
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| 作者单位： | 1.中国农业科学院蔬菜花卉研究所，北京 100081；2北京清源保生物科技有限公司，北京 100193 |
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| 基金项目： | 国家科技支撑计划，农业科技跨越计划 |
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| 摘 要： | 采用温室盆栽的方法，从生产厂家提供的7种不同浓度与配比的大黄素甲醚制剂中筛选出防治黄瓜白粉病效果最佳的配比组合剂型0.5 %大黄素甲醚水剂，其稀释倍数小于等于1 000倍时，防治效果在90 %左右，显著高于其他配比组合及对照药剂三唑酮与大黄素AM。对该药剂的作用方式、保护作用持效期、稳定性、防治技术及田间效果进行了研究与验证。结果表明：0.5 %大黄素甲醚水剂兼具保护与治疗作用，以保护作用更为突出，接种后14 d保护效果仍高达94 %；其保护作用的持效期为3~4 d，在黄瓜生长期间的温度与光照条件下能保持很强的稳定性与防治活性，田间验证也取得了稳定且显著的防治效果。
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| 关 键 词： | 大黄素甲醚 黄瓜白粉病 防治效果 |
| 收稿时间： | 2009-04-15; |
Control of Cucumber Powdery Mildew with Physcion |
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| YANG Yu-hong,GONG Hui-zhi,YANG Cui-rong,FENG Lan-xiang,XU Xiang-rong,QIAN Yi-xin,XIE Bing-yan.Control of Cucumber Powdery Mildew with Physcion[J].China Vegetables,2009,1(20):23-28. |
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| Authors: | YANG Yu-hong GONG Hui-zhi YANG Cui-rong FENG Lan-xiang XU Xiang-rong QIAN Yi-xin XIE Bing-yan |
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| Institution: | 1.Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences,Beijing 100081,China;2.Beijing Qingyuanbao Biological Science and Technology Co.,Ltd,Beijing 100193，China |
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| Abstract: | Through screening from 7 different propotions in greenhouses,0.5 % physcion is identified to display the best efficient control on cucumber powdery mildew,which reaches about 90 % control efficacy below 1 000-fold dilution,signifcantly higher than this of triadimefon and emodin AM.Then the action mode,prevention duration,stability,control techniques and field control efficacy of 0.5 % physcion were further investigated.The results showed that 0.5 % physcion has both protection and control activities.And the former is more prominent than the later,showing 94 % control efficacy 14 days after inoculation.The duration of the protective efficacy of 0.5% physcion could last 3-4 days.The efficacy was stable in different temperatures and illumination during cucumber growth.The control efficacy was also significant stable in field trial. |
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