Douglas-fir tussock moth handbook

how to estimate defoliation and predict tree damage

By Boyd E Wickman

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Publish Date

1979

Publisher

Dept. of Agriculture : for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Language

eng

Pages

Description:

subjects: Defoliation, Douglas fir tussock moth, Douglas-fir tussock moth