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Filtering by: Subject Pear -- Diseases and pests -- Control -- Columbia River Valley Decade 1970-1979

Integrated control of pear Psylla in Oregon's Hood River Valley

Creator:

Oregon State University. Agricultural Experiment Station, Zwick, R. W. (Robert Ward), 1922-, and Fields, G. J.

Abstract:

Published April 1977. 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

Full Text:

economic control of pear psylla in one orchard in the lower Hood River Valley but in the study area it