Journal article
Impacts and trapping of ambrosia beetles Euwallacea fornicatus and E. similis in Acacia plantations in Vietnam
Southern Forests: A Journal of Forest Science
2022
Abstract
There are over two million hectares of Acacia plantations in Vietnam and loss from infestations of ambrosia beetles is of increasing concern. In this study, we first determined the key taxa and the extent of damage, and then identified effective trap and lure combinations for trapping adult beetles, and finally quantified the seasonality of flight of Euwallacea for informing pest management decisions. Based on analysis of the mitochondrial cytochrome c oxidase subunit I gene, the greatest threats were confirmed as Euwallacea fornicatus and E. similis (Coleoptera: Curculionidae), which are native to Southeast Asia but known as invasive species in South Africa and elsewhere. The damage incidence of Euwallacea ranged from 16.7% to 34.9% in Acacia plantations throughout Vietnam. There were no significant differences in the numbers of beetles captured between the three trap types (plastic bottles, funnels and panels). Ethanol and quercivorol were more effective as lures than cubeb oil, α-pinene or a distilled water control. Trapping from June 2020 to May 2021 revealed a bimodal frequency of E. fornicatus and E. similis in A. mangium and Acacia hybrid plantations, with captures peaking in April (spring) and October (autumn). These findings can be applied to develop early detection and trapping control programmes for Euwallacea in Acacia plantations in Vietnam and elsewhere.
Details
- Title
- Impacts and trapping of ambrosia beetles Euwallacea fornicatus and E. similis in Acacia plantations in Vietnam
- Authors/Creators
- T.X. Hung (Author/Creator) - Forest Industry Research InstituteP.Q. Thu (Author/Creator) - Forest Industry Research InstituteN.M. Chi (Author/Creator) - Forest Industry Research InstituteL.V. Binh (Author/Creator)B. Dell (Author/Creator) - Forest Industry Research Institute
- Publication Details
- Southern Forests: A Journal of Forest Science
- Publisher
- NISC (Pty) Ltd and Informa UK Limited (trading as Taylor & Francis Group)
- Identifiers
- 991005541680007891
- Copyright
- © 2022 Informa UK Limited
- Murdoch Affiliation
- School of Agricultural Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.32 Entomology
- 3.32.1539 Bark Beetle Ecology
- Web Of Science research areas
- Forestry
- ESI research areas
- Plant & Animal Science