Abstract
Ambrosiodmus minor is an invasive ambrosia beetle in the southeastern United States, including Florida. It is considered of low importance because evident economic or ecological impacts have not been observed. However, it is associated with a unique ambrosia fungus, Flavodon subulatus, which causes rapid wood rot. Wood decay caused by this association between Ambrosiodmus and Flavodon is increasing in dead trees across the introduced range, especially in Florida. This 4-page fact sheet written by Demian F. Gomez and Jiri Hulcr and published by the UF/IFAS School of Forest Resources and Conservation offers guidance in identification of the pest, the symptoms of an infestation, and explanation of the insect?s biology. In addition, we provide an updated overview of contemporary management and monitoring of the species.
https://edis.ifas.ufl.edu/fr434
References
Atkinson, T. H. 2020. Bark and Ambrosia Beetles. www.barkbeetles.info.
Gomez, D. F., R. J. Rabaglia, K. E. O. Fairbanks, and J. Hulcr. 2018. "North American Xyleborini North of Mexico: A Review and Key to Genera and Species (Coleoptera, Curculionidae, Scolytinae)." Zookeys. 768:19-68. https://doi.org/10.3897/zookeys.768.24697
Hulcr, J., J. Skelton, A. J. Johnson, Y. Li, and M. A. Jusino. 2018. "Invasion of an Inconspicuous Ambrosia Beetle and Fungus May Alter Wood Decay in Southeastern North America." PeerJ Preprints 6:e27334v1 https://doi.org/10.7287/peerj.preprints.27334v1
Jordal, B. H., R. A. Beaver, and L. R. Kirkendall. 2001. "Breaking Taboos in the Tropics: Incest Promotes Colonization by Wood-Boring Beetles." Glob. Ecol. Biogeogr. 10:345-357. https://doi.org/10.1046/j.1466-822X.2001.00242.x
Jusino, M. A., J. Skelton, C. C. Chen, J. Hulcr, and M. E. Smith. 2020. "Sexual Reproduction and Saprotrophic Dominance by the Ambrosial Fungus Flavodon subulatus (= Flavodon ambrosius)." Fungal Ecol. 47:1-9. https://doi.org/10.1016/j.funeco.2020.100979
Jusino, M., J. Skelton, Y. Li, A. Johnson, J. Hulcr, and M. Smith. 2019. "Evidence of Multiple Evolutionary Origins of Beetle-Farmed Decay Fungi," in Mycol. Soc. Am. Meet. Minneapolis. p. 41
Kasson, M. T., K. L. Wickert, C. M. Stauder, A. M. Macias, M. C. Berger, D. R. Simmons, D. P. G. Short, D. B. DeVallance, and J. Hulcr. 2016. "Mutualism with Aggressive Wood-Degrading Flavodon ambrosius (Polyporales) Facilitates Niche Expansion and Communal Social Structure in Ambrosiophilus Ambrosia Beetles." Fungal Ecol. 23:86-96. https://doi.org/10.1016/j.funeco.2016.07.002
Li, Y., C. C. Bateman, J. Skelton, M. A. Jusino, Z. J. Nolen, D. R. Simmons, and J. Hulcr. 2017. "Wood Decay Fungus Flavodon ambrosius (Basidiomycota: Polyporales) Is Widely Farmed by Two Genera of Ambrosia Beetles." Fungal Biol. 121:984-989. https://doi.org/10.1016/j.funbio.2017.08.004
Lin, W., Y. Li, A. J. Johnson, and L. Gao. 2019. "New Area Records and New Hosts of Ambrosiodmus minor (Stebbing) (Coleoptera: Curculionidae: Scolytinae) in Mainland China." Coleopt. Bull. 73:684. https://doi.org/10.1649/0010-065X-73.3.684
Rabaglia, R. J., and K. E. Okins. 2011. "Entomology Section." Tri-ology. 50:6-9.
Simmons, D. R., Y. Li, C. C. Bateman, and J. Hulcr. 2016. "Flavodon ambrosius sp. nov., a Basidiomycetous Mycosymbiont of Ambrosiodmus Ambrosia Beetles." Mycotaxon. 131:277-285. https://doi.org/10.5248/131.277
Wood, S. L., and D. E. Bright. 1992. "A Catalog of Scolytidae and Platypodidae (Coleoptera), Part 2: Taxonomic Index, Volumes A and B." J. Chem. Inf. Model. 13:1-1553.
You, L., D. R. Simmons, C. C. Bateman, D. P. G. Short, M. T. Kasson, R. J. Rabaglia, and J. Hulcr. 2015. "New Fungus-Insect Symbiosis: Culturing, Molecular, and Histological Methods Determine Saprophytic Polyporales Mutualists of Ambrosiodmus Ambrosia Beetles." PLoS One. 10:1-13. https://doi.org/10.1371/journal.pone.0137689