Aphicidal Activity of an Ageraphorone Extract From Eupatorium adenophorum Against Pseudoregma bambucicola (Homoptera: Aphididae, Takahashi)
文献类型： 外文期刊
作者： Nong, Xiang 1 ; Chen, Feng-Zheng 1 ; Yang, Yao-Jun 1 ; Liang, Zi 1 ; Huang, Bao-Lian 1 ; Li, Yi 1 ; Liu, Tian-Fei 2 ; Yu, 1 ;
作者机构： 1.Leshan Normal Univ, Coll Life Sci, Leshan 614000, Peoples R China
2.Guangdong Acad Agr Sci, Inst Anim Sci, Guangzhou 510640, Peoples R China
3.Sichuan Entry Exit Inspect & Quarantine Bur, Chengdu 610041, Peoples R China
关键词： Ageraphorone;Pseudoregma bambucicola;insect biocontrol;bamboo aphid
期刊名称：JOURNAL OF INSECT SCIENCE （ 影响因子：1.857； 五年影响因子：1.904 ）
ISSN： 1536-2442
年卷期： 2015 年 15 卷
页码：
收录情况： SCI
摘要： The bamboo aphid, Pseudoregma bambucicola, is an important insect pest of bamboo that affects normal bamboo growth and induces sooty molds. The control of P. bambucicola involves the application of chemicals, such as imidacloprid, to which many species are resistant. In this study, we isolate a novel botanical pesticide (9-oxo-10,11-dehydro-ageraphorone) from an Eupatorium adenophorum(Asteraceae: Compositae) petroleum ether extract and test the aphicidal activity of this compound against P. bambucicola in laboratory bioassay and field-based experiments. This ageraphorone compound at a concentration of 2 mg/ml caused 73.33% mortality (corrected mortality [Subtracted the mortality of the negative control]: 70%) of P. bambucicola by laboratory bioassay within 6 h. Even at lower concentrations, this compound caused greater 33% mortality (corrected mortality: 30%) of aphids. Field experiments with naturally infested bamboo plants showed that two applications of 2 mg/ml ageraphorone to infested plants completely cleared infestations within 30 d. These effects were similar to those of the positive control (imidacloprid). These results reveal that 9-oxo-10,11-dehydro-ageraphorone exhibits significant aphicidal activity against bamboo aphids. We suggest that future research be directed at developing this ageraphorone compound from E. adenophorum as an aphicidal agent for biocontrol.
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