Spruce aphid in high elevation habitats in the Southwest U.S.

Ann M. Lynch

Treesearch

Spruce aphid in high elevation habitats in the Southwest U.S.

Informally Refereed

Authors:

Ann M. Lynch

Year:

2003

Type:

General Technical Report

Station:

Northern Research Station

Source:

In: Fosbroke, Sandra L. C.; Gottschalk, Kurt W., eds. 2002 January 15-18; Annapolis, MD. Gen. Tech. Rep. NE-300. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 60-63.

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Abstract

Spruce aphid, Elatobium abietinum (Walker) (Homoptera: Aphididae), is a new invasive pest in the interior Southwestern United States. This insect is causing extensive and severe damage on dormant Engelmann spruce, Picea engelmannii Parry, and Colorado blue spruce, P. pungens Engelm., in high elevation forests in late fall and winter. Engelmann spruce is more susceptible than is Colorado blue spruce. Average mortality on heavily defoliated plots is 28-42%, with 100% mortality on some plots.

Parent Publication

Economies of Scale and Forest Management in Mississippi

Citation

Lynch, Ann M. 2003. Spruce aphid in high elevation habitats in the Southwest U.S. In: Fosbroke, Sandra L. C.; Gottschalk, Kurt W., eds. 2002 January 15-18; Annapolis, MD. Gen. Tech. Rep. NE-300. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 60-63.