Published October 1995. A More recent revision exists. 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
Designed for forest owners and managers who want to prevent and manage insect damage in living trees (does not cover insects that infest dead wood). Six chapters discuss insects that affect tree foliage, shoots and twigs, trunks and large branches, and roots. Explains the effects of forest practices, such as...
This manual is intended for forest land owners and managers who want to understand and prevent unnecessary forest damage from insects. This manual covers only insects that infest living trees, not those that infest dead wood.
The manual is organized into chapters based on the part of the tree that...
A thorough introduction to disease pathogens, signs and symptoms, and management. Nine chapters cover root diseases (Armillaria, annosus, etc.); stem decays (Indian paint fungus, red ring rot, etc.); rust diseases (stem rusts, broom rusts, etc.); other fungal diseases; mistletoes; abiotic diseases; and effects of forest practices such as thinning on...
Published October 1995. Reviewed September 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Forest fires contribute a significant amount of CO₂ to the atmosphere each year, and CO₂ emissions from fires are likely to increase under projected conditions of global climate change. In addition to volatilizing aboveground biomass and litter layers, forest fires have a profound effect on belowground carbon (C) pools and...
The objectives of this study were to quantify and describe:
(1) the major plant communities and their distribution, (2) the
distribution and movement patterns of large herbivores relative to
water, topography, and plant communities, (3) the daily activity
patterns of each herbivore, and (4) the borne range size of wild...
The quantity and characteristics of coarse woody debris (CWD) were examined in four distinct pine ecosystems of north-western (NW) Spain, NW Russia and the NW USA. The average CWD volume and biomass ranged from 3.76 m³ ha⁻¹, 1.55 Mg ha⁻¹ in pine plantations in NW Spain to 24.86 m3 ha⁻¹,...
Measurements of physical tree crown dimensions were of subjective character in the past, even though they can be considered important for the management of many silvicultural operations, such as timing of thinning operations. In our study we investigated if and how measures of physical crown dimensions of trees differed when...
DRAFT REPORT. In 2013 – 2015, reconnaissance observations were made across non-forest habitats on FS and BLM land in the Coast Range and Cascade foothills within the Salem and Eugene BLM district areas for plant communities that did not fit the USFS Northwest Oregon Non-forest Plant Community guide. Surveys were...