摘要
首先通过叶圆盘法用29种植物提取液对黄瓜白粉病菌的抑菌效果进行了生物活性测定,初步筛选出槐、黄檀、南瓜和石楠等4种植物的提取液对黄瓜白粉病有较好的预防效果。然后对这4种植物提取液进行预防性和治疗性的室内盆栽药效试验,结果表明黄檀提取液对黄瓜白粉病的预防效果达到72.97%,治疗效果达到91.28%,并且在处理12 d后仍保持42.60%以上的防效。而槐提取液的预防效果和治疗效果分别为79.73%和79.19%,处理12 d后也保持在50%以上的防效。这两种植物提取液均极显著优于对照药剂三唑酮。
The preventive effects of 29 plant extracts against cucumber powdery mildew were tested with leaf disks method. The results showed that the extracts of Sophorajaponica L., Dalbergla hupeana Hanee., Cucurbita moschata Poiret, and Photinia serrulata Lindl. had a better preventive effect than the other extracts. The effects of these four plant extracts on potted plants in the cultural room were tested respectively. The results showed that the extract of D. hupeana had 72.97 % preventive effect and 91.28 % curative effect against cueualber powdery mildew. The extract of S. japonica had 79.73 % preventive effect and 79.19 % curative effect. Their protective effect against this pathogen both could maintain 12 days after the treatment. The two plant extralts＂ effects were much better than that of the Triadimefon, a traditional chemical pesticide for controlling this pathogen.
出处
《上海交通大学学报（农业科学版）》
2006年第1期48-53,共6页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
上海市科委重大科技攻关项目(No.03DZ19314)
关键词
植物源农药
植物提取液
黄瓜白粉病
抑菌活性
phytocheallcal pesticide
plant extract
Sphaerothecafuliginea （Schlecht） Poll.
inhibition effect.
作者简介
金素心（1981-），女，上海松江人，硕士生；
代光辉，通讯作者，研究方向：生物农药和天然产物，E-mail：ghdai@sjtu．edu．cn．
