Research Papers
If you would like to learn more about hemlock woolly adelgid, please check out some of the current research papers available below.
***NEW*** A funnel trap for the detection of hemlock woolly adelgid (Hemiptera: Adelgidae) and a method of extracting crawlers from trap samples - Jeffrey G. Fidgen, Glen Forbes, Lucas E. Roscoe, Michael Stastny, Berni M. van der Meer1, Jeffrey Ogden and Martin Williams - Journal of Economic Entomology June 2025
***NEW*** Risk of imidacloprid to soil invertebrates when applied as basal bark spray for the control of hemlock woolly adelgid - Chris Edge - Canadian Journal of Forest Research - March 2025
***NEW*** Influence of diameter of a sampling device on detectability of wool of the hemlock woolly adelgid (Hemiptera: Adelgidae) in the canopy of eastern hemlock (Pinaceae) - Jeffrey Fidgen, Lucas Roscoe, Jeffrey Ogden and Glen Forbes - The Canadian Entomologist December 2024
***NEW*** The distributions of hemlock woolly adelgid (Hemiptera: Adelgidae) in Canada - Chris MacQuarrie, Meghan Gray, Erin Bullas-Appleton, Tony Kimoto, Nicole Mielewczyk, Ron Neville, Jeffrey Ogden, Jeffrey Fidgen, Jean Turgeon - The Canadian Entomologist - January 2025
Review of non-target impacts of imidacloprid - Sweeney J. 2021, Natural Resources Canada, Canadian Forest Service [notes prepared by Jon Sweeney, Natural Resources Canada, Canadian Forest Service, 1350 Regent Street, Fredericton, NB, E3C 2G6, June-July 2021].
Temporal Asynchrony of Adult Emergence Between Leucopis argenticollis and Leucopis piniperda (Diptera: Chamaemyiidae), Predators of the Hemlock Woolly Adelgid (Hemiptera: Adelgidae), with Implications for Biological Control. - Neidermeier, Alex N., Darrell W Ross, Nathan P Havill, and Kimberly F Wallin. 2020. - Environmental Entomology, Volume 49, Issue 4, August 2020, Pages 823–828.
Biological Control of HWA in Eastern Canada. - Roscoe, Lucas, Jeff Fidgen, Michael Stastny, and Glen Forbes. 2022. - Forest Pest Forum, Ottawa, ON, Canada.
Spring bird migration as a dispersal mechanism for the hemlock woolly adelgid.- Russo, N.J., Elphick, C.S., Havill, N.P. et al. 2019 . - Biol Invasions 21, 1585–1599.
Thinning effects on foliar elements in eastern hemlock: implications for managing the spread of the hemlock woolly adelgid. - Piatek, Kathryn B.; Fajvan, Mary Ann; Turcotte, Richard M. 2017. - Canadian Journal of Forest Research. 47(1): 81-88.
Adelges tsugae (hemlock woolly adelgid). In: Invasive Species Compendium. Wallingford, UK: CAB International.
Modeling interactions of hemlock woolly adelgid and the two biological control predatory beetle species in the Great Smoky Mountains National Park.- Thompson HM, Wiggins G, Lenhart S. 2022. - Biological Control. Volume 173, October 2022, 104986.
Modeling the impacts of hemlock woolly adelgid infestation and presalvage harvesting on carbon stocks in northern hemlock forests. - Krebs, Jeffrey; Pontius, Jennifer; Schaberg, Paul G. 2017 - Canadian Journal of Forest Research. 47(6): 727-734.
Integrating chemical and biological control of the hemlock woolly adelgid: a resource manager’s guide. - Mayfield, A.E., III; S.M. Salom; K. Sumpter; T. McAvoy; N.F. Schneeberger; R. Rhea. 2020. - FHAAST-2018-04. USDA Forest Service, Forest Health Assessment and Applied Sciences Team, Morgantown, West Virginia.