University of California
Western Tree Failure Database/California Tree Failure Report Program
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International Society of Arboriculture
WCISA: Western Chapter; International Society of Arboriculture
ASCA - American Society of Consulting Arborists
Forest Pathology and Mycology Laboratory Wood Decay Diagnostic Research Project
SelecTree - A Tree Selection System for California (must have image loading turned ON)
UFEI - Urban Forestry Ecosystems Institute Addresses the increasing need for improved management of the urban forests in California
UC Statewide IPM Project - Integrated Pest Managment info: Pest & pesticide info, weather data, other links.
A Guide to careers with a forestry degree Discusses 10 different career options and additional information about salaries, education and more.