| Title: | "Contrasting Behavioral and Electrophysiological Responses of Eucryptorrhynchus scrobiculatus and E. brandti (Coleoptera: Curculionidae) to Volatiles Emitted from the Tree of Heaven, Ailanthus altissima" |
| Author(s): | Wen X; Yang K; Pinero JC; Wen J; |
| Address: | "Laboratory of Forest Pathogen Integrated Biology, Research institute of Forestry New Technology, Chinese Academy of Forestry, Beijing 100091, China. Beijing Key Laboratory for Forest Pests Control, College of Forestry, Beijing Forestry University, No. 35, Tsinghua East Road, Beijing 100083, China. College of Forestry, Northwest A&F University, Yangling 712100, China. Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA" |
| ISSN/ISBN: | 2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking) |
| Abstract: | "Eucryptorrhynchus scrobiculatus and E. brandti (Coleoptera: Curculionidae) are host-specific pests of Ailanthus altissima (Mill.) Swingle (Sapindales: Simaroubaceae), causing extensive damage to the host. There are no effective attractants available for pest management. The main aim of this study was to explore the role of host plant-derived volatiles in the behavioral response of both weevil species. In a field experiment, both weevil species showed positive response to phloem, and there was no preference for phloem associated with healthy or injured trees. Significantly more E. brandti adults responded to the olfactory treatments compared to E. scrobiculatus. In a large-arena experiment, both males and females of E. scrobiculatus significantly preferred phloem from the tree trunk while adults of E. brandti responded in significantly greater numbers to tree limbs than to any other parts of host. Females and males of E. scrobiculatus responded positively to all parts of host tested in the Y-tube bioassay, while E. brandti adults were only attracted by the phloem from healthy and injured trees. There were dissimilar electroantennographic responses to compounds such as 1-hexanol and (1S)-(-)-beta-pinene between the two weevil species. This study represents the first report documenting behavioral and electrophysiological responses of E. scrobiculatus and E. brandti to volatiles from various parts of A. altissima and findings may aid efforts to develop attractants" |
| Keywords: | behavior feeding selection host plant volatiles physiology semiochemical; |
| Notes: | "PubMed-not-MEDLINEWen, Xiaojian Yang, Kailang Pinero, Jaime C Wen, Junbao eng 2018YFC1200400/National Key R&D Program of China/ 31770691/National Natural Sciences Foundation of China/ 2019XKJS0501/Short-term International Student Program provided research support for Postgraduates of Forestry First-Class Discipline/ Switzerland 2021/01/21 Insects. 2021 Jan 14; 12(1):68. doi: 10.3390/insects12010068" |
