The settling behaviour of Adelges cooleyi sistentes on mature needles of Douglas fir

2009 ◽  
Vol 82 (1-4) ◽  
pp. 359-372 ◽  
Author(s):  
W. H. Parry
Keyword(s):  
Douglas Fir ◽  
Settling Behaviour ◽  
Adelges Cooleyi

Insecticidal Control of Adelges cooleyi on Douglas-Fir in Ohio, with Notes on Biology12

1972 ◽  
Vol 65 (3) ◽  
pp. 912-914 ◽  
Author(s):  
R. L. Campbell ◽  
C. P. Balderston
Keyword(s):  
Douglas Fir ◽  
Adelges Cooleyi

scholarly journals Douglas Fir Seed Sources Tested for Christmas Trees in Connecticut

1984 ◽  
Vol 2 (3) ◽  
pp. 93-97
Author(s):  
R.A. Jaynes ◽  
G.R. Stephens ◽  
J.F. Ahrens
Keyword(s):  
New Mexico ◽  
Pseudotsuga Menziesii ◽  
Rocky Mountain ◽  
Douglas Fir ◽  
Christmas Tree ◽  
Seed Sources ◽  
Christmas Trees ◽  
Adelges Cooleyi ◽  
Geographic Sources ◽  
Southern Rocky Mountain

Douglas fir, Pseudotsuga Menziesii (Mirb.) Franco, is a popular Christmas tree in the Northeast. In 1976 trees from 11 geographic sources ranging from British Columbia to southern Arizona and New Mexico were planted in a replicated design and managed as a commercial plantation. Information was also obtained on 10 seed sources grown on a commercial tree farm. All sources were hardy in the Connecticut plantings. In general, trees from southern Rocky Mountain sources were bluer, and grew faster than those from northern sources, but they were also more susceptible to attack by Cooley gall aphid, Adelges cooleyi (Gill), and rhabdocline needle cast fungus, Rhabdocline pseudotsugae (Syd.)

The Biology of Adelges cooleyi (Gill.) (Homoptera: Phylloxeridae)

1959 ◽  
Vol 91 (10) ◽  
pp. 601-617 ◽  
Author(s):  
Margaret E. P. Gumming
Keyword(s):  
North America ◽  
Pseudotsuga Menziesii ◽  
Tree Species ◽  
Picea Glauca ◽  
Douglas Fir ◽  
Alternate Host ◽  
Shade Tree ◽  
Engelmann Spruce ◽  
Shelter Belt ◽  
Adelges Cooleyi

Adelges cooleyi (Gill.) causes galls on spruce in the forests and on shelter-belt and shade-tree plantings in Alberta. The alternate host is Douglas fir, on which the injury is less conspicuous. The tree species affected are white spruce, Picea glauca (Moench) Voss, Engelmann spruce, P. engelmanni Parry, and blue Douglas fir, Pseudotsuga menziesii (Mirb.) Franco. A. cooleyi is indigenous to North America.

Adelges cooleyi (Homoptera: Phylloxeridae) Control on Douglas-Fir Christmas Trees1

1970 ◽  
Vol 63 (1) ◽  
pp. 150-151 ◽  
Author(s):  
J. L. Saunders ◽  
D. A. Barstow
Keyword(s):  
Douglas Fir ◽  
Adelges Cooleyi
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