ForesTree - A Guide to Tree Health

Have a pest or disease problem with your California native tree?

Pests and diseases are species specific. It is often necessary to know the type of tree before you can identify the pest or disease. This website will assist you in identifying it and your tree.

Know the name of the pest or disease?
arrow Disease & Pest Information

Select or identify your tree:
arrow Tree Identification

About ForesTree

close This website is provided for homeowners who live in a forested area. It is intended to provide a way for those homeowners to identify pest and disease problems that might occur on their California native trees and to help them with general information and sources of further assistance. If you know the type of pest or disease, select it from the list. If not, this site will assist you in identifying it and your tree. The information contained in this site is a collection from a wide variety of public sources. The name "ForesTree" came from the idea that although people may move into a forested area, they would focus more on individual trees rather than the whole forest. This site is provided by the Urban Forest Ecosystems Institute in the Natural Resources Management Department at California Polytechnic State University and the Resource Management Program of the California Department of Forestry and Fire Protection.

Disease and Pest information is collected from a wide range of public sources. There are over 60 diseases and pests listed. Information will be added as it becomes available. Website links, images and documents are provided. Every effort is made to identify sources. UFEI assumes no credit for publications or images unless explicitly stated.

The tree identification key was developed by UFEI personnel for this resource. There are currently 34 California native trees in the key. Tree information and images are provided from SelecTree.

Questions or comments are welcomed by UFEI. If you have questions or comments, please contact us.

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