Long-term weather variability and shifting distribution limits of the invasive hemlock woolly adelgid (Adelges tsugae Annand)

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  • Authors: Trotter III, R. Talbot
  • Publication Year: 2011
  • Publication Series: Other
  • Source: In: McManus, Katherine A; Gottschalk, Kurt W., eds. 2010. Proceedings. 21st U.S. Department of Agriculture interagency research forum on invasive species 2010; 2010 January 12-15; Annapolis, MD. Gen. Tech. Rep. NRS-P-75. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 136-137.

Abstract

The hemlock woolly adelgid (HWA) is a small, aphid-like piercing-sucking insect native to Asia and northwestern North America (Havill et al. 2006, 2007). First documented in 1951 in the eastern United States near Richmond, VA, the HWA has spread to infest at least 17 states along the Appalachian Mountains from Georgia to southern Maine, where infestations have been limited to coastal regions with more moderate temperatures. Currently, the northern regions of Vermont, New Hampshire, and Maine remain uninfested.

  • Citation: Trotter, R. Talbot III. 2010. Long-term weather variability and shifting distribution limits of the invasive hemlock woolly adelgid (Adelges tsugae Annand). In: McManus, Katherine A; Gottschalk, Kurt W., eds. 2010. Proceedings. 21st U.S. Department of Agriculture interagency research forum on invasive species 2010; 2010 January 12-15; Annapolis, MD. Gen. Tech. Rep. NRS-P-75. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 136-137.
  • Posted Date: April 21, 2011
  • Modified Date: November 21, 2011
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