Hemlock Woolly Adelgid - Biological Control
- Biological Control of Hemlock Woolly Adelgid - USDA Forest Service FHTET-2004-04
- Biological Control of Hemlock Woolly Adelgid in the Eastern United States--McClure (FHTET-2000-08, Jan. 2001) (pdf format 723 kb) - 2004
- Development of Insect-Killing Fungi for Management of Hemlock Woolly Adelgid--Costa, Skinner, S. Gouli, Brownbridge, V. Gouli, Reid, and Parker 2004
- Introduced Biological Control Agents for Hemlock Woolly Adelgid--Clemson University
- Pseudoscymnus tsugae---Cornell University
- Scymnus ningshanensis Yu et Yao (Coleoptera: Coccinellidae) for Biological Control of Adelges tsugae (Homoptera: Adelgidae)--Montgomery, Wang, Butin, Yao, Lu, and Havill - 2004
- Hemlock Woolly Adelgid--A Race in Time--Onken (poster presented at HWA Symposium - 2002)
P.tsugae Release Sites:
Laricobius nigrinus and Sasajisycymnus tsugae Release Sites:
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