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Your Position :Home->Past Journals Catalog->2015年52 No.5

A new perspective on the screening and blending of volatile pest attractants derived from plants
Author of the article:LI Wei-Zheng1** HU Jing-Jing1 CHEN Han-Jie2 GUO Xian-Ru1WANG Qiong1 YUAN Guo-Hui1***
Author's Workplace:College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China; 2. Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
Key Words:attractant, screening, scent transition circulation, super-blending, formula uniform design
Abstract:The adult stage of agricultural insect pests represents a window within which artificial interference can affect the entire subsequent generation. Plant-derived attractants that are effective, compatible, environmentally friendly, and long-lasting resistance have proven difficult to develop. Some simple attractant blends have been developed, however, their effectiveness with respect to both luring a significant proportion of the target species population, and reducing the proportion of beneficial non-target insects caught, have never been satisfactory. Two barriers hinder the screening and blending of plant-derived attractants using traditional chemical ecology methods; the first is how to rationally break-down a highly organized plant volatile profile into its constituent chemicals and then to re-organize these to produce compounds with a useful biological function, the second is how to design and optimize attractant blends in trapping experiments after the identification of some individual electrophysiological or behaviorally active components. In this review, we first describe some technical bottlenecks in traditional chemical ecology; then review some recent novel ideas for the screening and application of plant-derived attractants, including the implications of perfumery for attractant development. Finally we recommend two complementary screening methods; the first is laboratory behavioral bioassay of the orthogonal combination of electrophysiologically active components, the second is the principles of uniform formula design, which is a key blending method for attractants in field trapping.
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