University of California

California Tree Failure Report Program

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Failure Photos

October, 2010

Over the years contributors have submitted many photos of tree failures that we have displayed at the CTFRP Annual Meetings. Lately, some have been submitted in digital format, but most are stored in boxes. The plan for the coming months is to scan and display some of the photos of the most commonly reported species (see CTFRP statistics/50 or more) illustrating typical, or sometimes unusual, failure patterns.

See below for some failure photos of less frequently reported species.

Eucalyptus citriodora (lemon-scented gum) branch failure. There are16 reports for this species in the database.

Schinus molle (California pepper) root failure. There are 17 reports for this species in the database. Photo:D. Weaver

Salix babylonica (weeping willow) trunk failure. There are 34 reports for this species in the database. Photo: R. Hansen

Syagrus romanzoffiana (queen palm) trunk failure. There are 2 reports for this species in the database. Photo: R. Loucks

Ficus microcarpa nitida (indian laurel fig) branch failure. There are 12 reports for this species in the database. Photo: E. Slowik

Celtis chinensis (Chinese hackberry) branch failure. There are 24 reports for this species in the database. Photo: unknown

Aesculus californica (California buckeye) root failure. There are 7 reports for this species in the database. Photo: K. Jones

Erythrina sp. (coral tree) root failure. There are 10 reports for this genus in the database. Photo: E. Slowik

Ulmus americana (American elm) trunk failure. There are 44 reports for this species in the database. Photo: D. Pskowski

Platanus x acerifolia (London plane) trunk failure. There are 17 reports for this species in the database. Photo: P. Wasirlewski

Quercus garryana (Oregon white oak) trunk failure. There are 5 reports for this species in the database. Photo: G. Hernandez

Eucalyptus lehmanii (bushy yate) root failure. There are 6 reports for this species in the database. Photo: R. Loucks

Melaleuca quinquinervia (cajeput) trunk failure. There is one report for this species in the database. Photo: R. Loucks

Albezia julibrissin (silk tree) trunk failure. There are 13 reports for this species in the database. Photo: unknown

Acer sacharrinum (silver maple) root failure. There are 23 reports for this species in the database. Photo: C. Crotty

Eucalyptus gunnii (cider gum). There is one report for this species in the database. Photo: C. Llata

Robinia pseudoacacia (black locust) root failure. There are 29 reports for this species in the database. Photo: R. Nelson

Tipuana tipu (tipu tree) trunk failure. There are 4 reports for this species in the database.Photo: E. Slowik

Ulmus procera (English elm) root failure. There are 14 reports for this species in the database. Photo: D. Goosen

Washingtonia robusta (Mexican fan palm) root failure. There are 6 reports for this species in the database. Photo: R. Mize

Lagerstroemia indica (crape myrtle) trunk failure. There are 6 reports for this species in the database. Photo: M. Camfield

Populus nigra Italica (Lombardy poplar) trunk failure. There are 18 reports for this species in the database. Photo: M. Camfield

Quercus douglasii (blue oak) trunk failure. There are 42 reports for this species in the database. Photo: J. McClenahan

Tipuana tipu (tipu tree) trunk failure. There are 4 reports for this species in the database. Photo: E. Slowik

Ceratonia siliqua (carob) root failure. There are 25 reports for this species in the database. Photo: E. Murdock

Quercus macrocarpa (bur oak) branch failure. There is one report for this species in the database. Photo: C. Boza

Pistacia chinensis (Chinese pistache) branch failure. There are 22 reports for this species in the database. Photo: R. Morneau

Olea Europaea (olive) root failure. There are 9 reports for this species in the database. Photo: K. Jones

Eucalyptus cladocalyx (sugar gum) branch failure. there are 4 Reports for this species in the database. Photo: J. Scow