Assessing the presence of the granulate ambrosia beetle (Xylosandrus crassiusculus) in selected areas in Auckland
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Jones, Chryee
Gibson, Maddy
Wechsler, Sarah Kate
Pugh, A.
Killick, S.
Aguilar, Glenn
Adams, Nigel
Gibson, Maddy
Wechsler, Sarah Kate
Pugh, A.
Killick, S.
Aguilar, Glenn
Adams, Nigel
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2022-08
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Conference Contribution - Poster Presentation
Ngā Upoko Tukutuku (Māori subject headings)
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Granulate ambrosia beetle ( Xylosandrus crassiusculus )
Auckland (N.Z.)
New Zealand
invasive species
Auckland (N.Z.)
New Zealand
invasive species
ANZSRC Field of Research Code (2020)
Citation
Jones, C., Gibson, M., Wechsler, S.K., Pugh, A., Killick, S., Aguilar, G., Adams, N., & Fraser, D. (2022, August, 3-5). Assessing the presence of the granulate ambrosia beetle (Xylosandrus crassiusculus) in selected areas in Auckland [Poster presentation]. New Zealand Biosecurity Institute NETS Conference 2022: Changing Landscapes 2022, Christchurch, New Zealand
https://hdl.handle.net/10652/7005
Abstract
The granulate ambrosia beetle (GAB) (Xylosandrus crassiusculus) (Fig.1) is a small (up to 3mm), polyphagus, multivoltine. invasive ambrosia beetle, native to Southeast Asia and is now widespread in North, Central and South America, Europe, some Pacific Islands and Australia1,2. Globally it has been detected on 200+ tree and shrub species in over 60 plant families and damage can include stunting, delayed leaf emergence, premature defoliation or even death of trees3. Female beetles drill a network of tunnels (galleries) into the trunks of immature nursery trees and woody shrubs but also adult trees, which are subject to stress, and produce characteristic sawdust “noodles” (Figure 2)3. They live and breed in these galleries feeding on the “symbiotic fungus” they culture3. The beetles also transport pathogenic fungus and tree damage may be due to physical damage from boring &/or pathogenic fungus4. First detected in Blockhouse Bay, Auckland in 2019, other locations were identified in Kumeu, Riverhead and Titirangi.
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