Ongoing research

Western Tree Failure Database/California Tree Failure Report Program: Page

Species Profiles and Summaries

Species profiles will be added to this section as they become available. Also, included here are summaries of: Monterey pine, Pinus radiata, data for 1994 and 2010 Coast live oak, Quercus agrifolia, data for 1995, 1996, 2010 and 2014.
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Western Tree Failure Database/California Tree Failure Report Program: Page

Contact Information

Larry, Katherine and IgorKatherine Jones CTFRP Database Manager P.O. Box 725 Larkspur CA, 94977-0725 treefail@mac.com Dr. Larry Costello CTFRP Principal Investigator UCCE Horticulture Advisor Emeritus lrcostello@ucanr.edu or larryoracleoak@me.com Dr.
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Western Tree Failure Database/California Tree Failure Report Program: Page

Archives

Date: Mar 11, 2010 Name: Chester Chesbro Someone told me that municipalities are beginning to systematically remove carobs (ceratonia siliqua) as street trees because they are prone to heart decay and failure. I am looking for confirmation of that.
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Western Tree Failure Database/California Tree Failure Report Program: Page

Quercus lobata 2013

01/29/14 Valley oak profile from the winter 2013 issue of Western Arborist with thanks to WCISA and Western Arborist Magazine.
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Western Tree Failure Database/California Tree Failure Report Program: Page

Pinus radiata

Monterey pine was, until the emergence and proliferation of Pine Pitch Canker disease, a widely planted landscape tree in California.
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Western Tree Failure Database/California Tree Failure Report Program: Page

50 or more

There are 50 or more reports for the following species as of January 10, 2024. Report numbers for species do not provide an assessment of the frequency of failure for the species (i.e., how often a species fails relative to its occurrence in a population of trees).
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Western Tree Failure Database/California Tree Failure Report Program: Page

Big Wind in Marin County

Big wind in Marin Thursday morning, March 24, 2011, in west Marin it was raining and windy. It felt like a tornado, but according to the Marin Independant Journal, the meteorologists say "No. It was a 50-60 mph wind gust.
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Western Tree Failure Database/California Tree Failure Report Program: Page

Umbellularia californica

California bay root failure Photo: R. Edberg California bay root failure Photo: R. Edberg California bay trunk failure Photo: R. Edberg California bay branch failure Photo: R. Bushwag California bay branch failure Photo: R.
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Western Tree Failure Database/California Tree Failure Report Program: Page

Ulmus parvifolia

Evergreen elm branch failure Photo:M. Camfield Evergreen elm branch failure Photo: B.
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