Black check in western hemlock

Hopkins, A. D. (Andrew Delmar), 1857-1948; United States. Bureau of Entomology

Name: black check in western hemlock [ocr].pdf

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Date: 1905-05

Subject: Cheilosia
Wood borers
Western hemlock -- Diseases and pests

This item appears in the following Collection(s)

U.S. Forest Service Research Legacy
Early reports of research findings from U. S. Forest Service Research Stations.