Adelges cooleyi

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

Breytilegur litur galls.

Heimildir

^1 Ebata, Tim. March 12, 2002. Cooley Spruce Gall adelgid - Pest Guide Geymt 29 ágúst 2008 í Wayback Machine BC Ministry of Forests, Victoria, BC, Canada. Part of:[1]
^2 Cranshaw, W.S. June 23, 2005. Cooley Spruce Galls Geymt 20 september 2015 í Wayback Machine Colorado State University.
^3 UBC Faculty of Forestry, Vancouver, B.C., Canada. Insects Studied in Forestry 308 Geymt 28 apríl 2012 í Wayback Machine
^4 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^{[óvirkur tengill]}
^5 Canadian Forestry Service,2002-12-23. Online publication about Aphids Geymt 3 október 2006 í Wayback Machine
^6 Childs, R. University of Massachusetts Amherst, Massachusetts, 01003. Cooley Spruce Gall Adelgid - Landscape Nursery and Urban Forestry - UMass Extension Geymt 28 september 2011 í Wayback Machine

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)