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Filtering by: Subject Christmas trees -- Diseases and pests -- Northwest, Pacific

Spraying for Douglas-fir needle midges in Christmas tree plantations

Creator:

Simko, B. C. (Ben C.) and Oregon State University. Extension Service

Abstract:

Published September 1982. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report