The foliar chemistry dynamic in eastern hemlock and how it relates to the competitive mechanism between two invasive herbivores: Adelges tsugae and Fiorinia externa.
| Authors: | Mailea R. Miller-Pierce, Evan L. Preisser, Dave A. Orwig |
| Year: | 2009 |
| Type: | Other |
| Station: | Northern Research Station |
| Source: | In: McManus, Katherine A; Gottschalk, Kurt W., eds. Proceedings. 20th U.S. Department of Agriculture interagency research forum on invasive species 2009; 2009 January 13-16; Annapolis, MD. Gen. Tech. Rep. NRS-P-51. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 88. |
Abstract
While invasive species themselves have been examined, little work has addressed the question of competition between two invasive specialists on a shared host. An example of this situation exists in the eastern United States, where eastern hemlock (Tsuga canadensis) forests are threatened by two invasive herbivores: the elongate hemlock scale Fiorinia externa (EHS) and the hemlock woolly adelgid Adelges tsugae (HWA).
Parent Publication
- Proceedings. 20th U.S. Department of Agriculture interagency research forum on invasive species 2009