Index Catalog // ScholarsArchive@OSU

Creator:: Cowan, Bruce Dudley and Nagel, William P. (William Payne), 1929-
Abstract:: Published October 1965. 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:: timber; and 3) relate predator abundance to densities of Douglas-fir beetle adults and beetle entrance

Creator:: Kline, LeRoy N. and Rudinsky, J. A. (Julius Alexander), 1917-
Abstract:: Published October 1964. 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:: . TECHNICAL BULLETIN 79 Predators and Parasites of the Douglas-fir Beetle: Description and Identification

Creator:: Harwood, Willard Garland and Rudinsky, J. A. (Julius Alexander), 1917-
Abstract:: Published July 1966. 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:: the first week of August suggests that this predator is not associated with the Douglas-fir beetle as

Creator:: Dewey, Jerald E., United States. Forest Service. Northern Region. Forest Environmental Protection, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Two concentrations of dimethoate were applied with a hydraulic ground sprayer to cone-bearing Douglas-fir and grand fir trees. Single application (mid-June) and a double application (mid-June and mid-July) were compared. Three of the four treatments applied to Douglas-fir resulted in a significantly higher number of sound seeds produced per cone...
Resource Type:: Technical Report
Full Text:: REPORT NO. 75-13 GROUND APPLICATION OF DIMETHOATE (CYGON) for the one and Seed ying Insects glas-fir

ScholarsArchive@OSU