Adelges cooleyi
Adelges cooleyi er barrlúsartegund sem myndar gall í grenitrjám. Þær þurfa tvær tegundir til að ljúka lífsferlinum, sú seinni er döglingsviður.

See also 
Þallarbarrlús
Adelges piceae

Heimildir 
Ebata, Tim. March 12, 2002. Cooley Spruce Gall adelgid - Pest Guide  BC Ministry of Forests, Victoria, BC, Canada. Part of:
Cranshaw, W.S. June 23, 2005. Cooley Spruce Galls  Colorado State University.
UBC Faculty of Forestry, Vancouver, B.C., Canada. Insects Studied in Forestry 308 
 Cooley spruce gall aphid. 1977. Wood, C. Government of Canada. Department of the Environment. Canadian Forest Service, Pacific Forest Research Centre, Victoria, BC. Forest Pest Leaflet 06. 4 p. PDF form
 Canadian Forestry Service,2002-12-23. Online publication about Aphids 
 Childs, R. University of Massachusetts Amherst, Massachusetts, 01003. Cooley Spruce Gall Adelgid - Landscape Nursery and Urban Forestry - UMass Extension 
More on the invasive woolly aphid species:
Forest Pests.  (2005).  Balsam woolly aphid Adelges piceae (Ratzeburg).  (World Wide Web page).  Available: http://www.forestpests.org/southern/balsamwoollyadelgid.html (Dec. 1, 2005)
  and related pests

Tilvísanir 

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