首页 | 本学科首页   官方微博 | 高级检索  
     


Active compounds in Populus nigra L. wilted leaves responsible for attracting Helicoverpa armigera (Hübner) (Lep., Noctuidae) and new agaropectin formulation
Authors:W.-Z. Li  G.-H. Yuan  C.-F. Sheng   X.-R. Guo
Affiliation:State Key Laboratory of Integrated Management of Insect and Rodent Pests, Institute of Zoology, Chinese Academy of Sciences, Beijing, China;;College of Plant Protection, Henan Agricultural University, Henan, China.
Abstract:Abstract:  The leaf extracts of Populus nigra were collected and identified by steam distillation, air entrainment and gas chromatographic–mass spectrometric analysis. Electroantennograms were recorded from Helicoverpa armigera adults in response to the chemicals identified. Both aromatic compounds and green-leaf volatiles elicited strong responses. Field experiments revealed that the active compounds responsible for attracting H. armigera moths are mainly short-side-chain aromatic alcohols and aldehydes. We, for the first time, used agaropectin as the controlled-release matrix of insect attractants. A five-component lure containing all the aromatics without phenolics, mixed in the proportions as found in the steam distillate of the leaves collected in August, produced the best trap catch. The results showed that the volatiles of wilted leaves of P. nigra can attract H. armigera adults by feeding attraction.
Keywords:Helicoverpa armigera    Populus nigra    agaropectin    formulation    poplar bundle
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号