The balsam woolly aphid on young Pacific silver fir in Washington

An edition of The balsam woolly aphid on young Pacific silver fir in Washington (1968)

balsam woolly aphid on young Pacific silver fir in Washington

By Norman E. Johnson

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Publish Date

1968

Publisher

Weyerhaeuser Forestry Research Center

Language

eng

Pages

Description:

subjects: Abies amabilis, Balsam woolly adelgid, Diseases and pests

Places: Washington (State)