New Report Examines Status of Kuroshio Shot Hole Borer in Tijuana River Valley

  • Jun 08, 2020

A new report, The Ecology and Management of the Kuroshio Shot Hole Borer in the Tijuana River Valley, by Dr. John Boland, Dr. Kellie Uyeda and Dr. Debbie Woodward summarizes the current status of KSHB in this region. The report is the fifth in a series that began reporting on KSHB in 2016 when infestation rates were at a peak in that area with willow infestations ultimately reaching 91%, leading to the death of about 30% of the willows.

Since 2016, the KSHB population has swiftly declined as it has depleted its preferred willow host trees. The report examines the infestation, the ecology of KSHB, how its impact varied across the valley, how SHB is dispersed, why enriched trees were more likely to be attacked and how the damaged trees responded. The most recent research indicates willows that were extensively damaged by KSHB have since made a vigorous comeback.
A complete copy of the report can be viewed online.

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