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Production rates and costs for yarding by cable, balloon, and helicopter compared for clearcuttings and partial cuttings

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report supplements Research Bulletin 18 (1975) of the Forest Research Laboratory, School of Forestry, Oregon State University. Bulletin 18 summarized analyses of data for the first field season of the Pansy Basin Study. This Bulletin extends those analyses to the second, and final, field season. Time-study observations during the...
Resource Type:: Technical Report
Full Text:: , and Helicopter Compared for Clearcuttings and Partial Cuttings Dennis P. Dykstra Research Bulletin

Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report describes initial results of a yarding time study for the Pansy Basin Study, a cooperative research project designed to test the performance of skylines, balloons, and helicopters operating under various conditions of timber and terrain, and over a range of silvicultural and landscape design prescriptions. Observations during the...
Resource Type:: Technical Report
Full Text:: in Old-Growth Douglas-fir COMPACT Dennis P. Dykstra Research Bulletin 18 September 1975 Forest

Integrated pest management of insects and mites attacking pears in southern Oregon

Creator:: Westigard, Peter H., Lombard, P. B. (Porter B.), and Berry, Donald W.
Abstract:: This publication deals with the development of integrated pest management of insect and mite species that attack pears in southern Oregon. Since about 1900, when the pear industry became firmly established in this area, losses from arthropod pests have been an important and occasionally limiting factor to the continuous production...
Resource Type:: Technical Report
Full Text:: in Southern Oregon Station Bulletin 634 May 1979 Agricultural Experiment Station Oregon State

Linkages between the economy and the environment : an analysis of economic growth in Clatsop County, Oregon

Creator:: Roberts, Kenneth J. and Rettig, R. Bruce
Abstract:: Page 2 and 6 are blank pages in document.
Resource Type:: Technical Report
Full Text:: AGRICULTURAL EXPERIMENT STATION Station Bulletin no. 618 MAY 1975 LINKAGES BETWEEN THE ECONOMY AND THE

30 days to reality

Creator:: Oregon State University. Cooperative Extension Service, Fetterman, Elsie, 1927-, and Meade, Arland
Abstract:: Published September 1970. 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:: 30 days to rea I ity EXTENSION BULLETIN 822 SEPTEMBER 1970

Contemporary technology and its limitations

Creator:: Bella, David A. and Oregon State University. Engineering Experiment Station
Abstract:: Bulletin no. 53 in the series Bulletin (Oregon State University. Engineering Experiment Station) and part of Project No. C-5195
Resource Type:: Technical Report
Full Text:: DAVID A. BELLA AssociATE PROFESSOR DEPT. OF CIVIL ENGINEERING OREGON STATE UNIVERSITY BULLETIN No

Climatological station operation at the Thompson Research Center on the Cedar River watershed

Creator:: Fritschen, Leo, U.S. International Biological Program. Coniferous Forest Biome, and University of Washington
Abstract:: Best copy available.
Resource Type:: Technical Report
Full Text:: INTERNAL REPORT 120 CLIMATOLOGICAL STATION OPERATION AT

The pear psylla in Oregon

Creator:: Westigard, Peter H. and Zwick, Robert Ward, 1922-
Abstract:: Since its discovery in Oregon in 1946, the pear psylla, Psylla pyricola Forster, has become the most serious insect pest of pear. Damage to pear trees include the transmission of pear decline disease which has caused losses of trees, injection of a phytotoxic toxin resulting in tree shock and injury,...
Resource Type:: Technical Report
Full Text:: Pear Psylla in Oregon Technical Bulletin 122 AGRICULTURAL EXPERIMENT STATION Oregon State University

A study of the economics of force molting in commercial egg production

Creator:: Parlour, James W. (James Wilson) and Halter, Albert N., 1927-
Abstract:: Published December 1970. 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:: Commercial Egg Production Agricultural Experiment Station Oregon State University Corvallis TECHNICAL

The distribution and biology of the Oregon Trichoptera

Creator:: Anderson, N. H.
Abstract:: More than 280 species of caddisflies (Trichoptera), representing 80 genera in 16 families, are known to occur in Oregon. Detailed distribution records within the state are given, as well as the known geographic range for each species. Biological information, such as life cycle, habitat preference, flight period, and larval feeding...
Resource Type:: Technical Report
Full Text:: The Distribution and Biology of the Oregon Trichoptera Technical Bulletin 134 AGRICULTURAL

ScholarsArchive@OSU

Production rates and costs for yarding by cable, balloon, and helicopter compared for clearcuttings and partial cuttings

Production rates and costs for cable, balloon, and helicopter yarding systems in old-growth Douglas-fir

Integrated pest management of insects and mites attacking pears in southern Oregon

Linkages between the economy and the environment : an analysis of economic growth in Clatsop County, Oregon

30 days to reality

Contemporary technology and its limitations

Climatological station operation at the Thompson Research Center on the Cedar River watershed

The pear psylla in Oregon

A study of the economics of force molting in commercial egg production

The distribution and biology of the Oregon Trichoptera

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