An edition of Infestation characteristics of the balsam woolly aphid in the Pacific Northwest (1966)
Infestation characteristics of the balsam woolly aphid in the Pacific Northwest
By R. G. Mitchell
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Publish Date
1966
Publisher
Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Language
eng
Pages
18
Description:
subjects: Fir, Adelges, Diseases and pests
Places: Pacific Northwest