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UC Irvine gets landscape tree help from UC ANR

UC ANR is helping UC Irvine deal with trees infested with polyphagous shot hole borer.
Hundreds of landscape trees on the UC Irvine campus have been infested with polyphagous shot hole borer, a pest introduced into California from Asia. UCI has assembled a team that includes UC Agriculture and Natural Resources experts to develop a management plan for identifying, removing, treating and replacing the ravaged trees, according to a UCI press release.

Polyphagous shot hole borer has been present on the campus for two to three years. The extent of the infestation  became apparent in the last few months when a significant number of trees began showing severe symptoms. UCI groundskeepers began to more closely examine a number of trees that appeared to be particularly distressed and worked with UC ANR staff to identify PSHB in early 2015.

A team of UCI staff qualified in tree management is receiving training from UC ANR (UC Riverside and UCCE) to properly identify and assess PSHB infestation. The team will monitor all trees on the UCI campus and, with input from faculty and students from UCI's Center for Environmental Biology, make the determination about which infected trees will be removed.

The news release suggests area property owners who suspect their own trees are infested with PSHB contact John Kabashima, UC ANR environmental horticulture advisor at the UC South Coast Research and Extension Center, 7601 Irvine Blvd., Irvine, CA 92618, pshb.ucce.oc@gmail.com.

Posted on Wednesday, April 22, 2015 at 9:27 AM

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