Gold Spotted Oak Borer

The Gold Spotted Oak Borer (GSOB) is a recently discovered insect that has been decimating some coast live oak (Quercus agrifolia) and California black oak (Quercus kelloggii) stands in Southern California, so far exclusively in San Diego County. It is believed that this non-native insect arrived in California during the last two decades, likely from firewood transported to the state from Arizona or Mexico where GSOB is known to live. The University is currently involved in a large educational effort to make the state’s residents understand the threat this insect poses and to advise them on how they can help contain this outbreak. One critical factor in containing the spead of GSOB is to NOT MOVE FIREWOOD from infected areas so UC and others are embarking on a large education effort to get this message out.

More information on Gold Spotted Oak Borer




gsob id guidegsob websitegsob

Oak Pest Management Articles from Oaks ‘n’ Folks

Branch Dieback and Twig Blight of Oak
Hecht-Poinar, Eva I. and J.R. Parmeter, Jr. Oaks ‘n’ Folks – Volume 2, Issue 1 – August, 1987

Caterpillar Pests of Oak Trees
Tietje, William and John Foott Oaks ‘n’ Folks – Volume 2, Issue 2 – November, 1987

Armillaria Mellea: Native Soil Fungus Causing Root Rot
Gross, Rob Oaks ‘n’ Folks – Volume 2, Issue 2 – November, 1987

Grasshoppers Continue to Hamper Oak Restoration Efforts
McCreary, Douglas D. and Jerry Tecklin Oaks ‘n’ Folks – Volume 9, Issue 2 – September 1994

Gophers Love Oak-To Death
Adams, T.E. and Bill Weitkamp Oaks ‘n’ Folks – Volume 6, Issue 1 – April 1991

Filbert Pests in Live Oaks
Lewis, V.R. Oaks ‘n’ Folks – Volume 6, Issue 2 – July 1991

Pocket Gopher Damage to Oak on the Santa Rosa Plateau
Lathrop, Earl W. and Kevin P.C. Yeung Oaks ‘n’ Folks – Volume 6, Issue 3 – December 1991

Oak Anthracnose in the Sacramento Valley
Owen, Donald R. Oaks ‘n’ Folks – Volume 9, Issue 1 – April 1994

Oaks ‘n’ Voles
Tecklin, Jerry Oaks ‘n’ Folks – Volume 10, Issue 1 – April 1995

Living Among the Oaks Creates a Sticky Situation
McCreary, Douglas. Oaks ‘n’ Folks – Volume 11, Issue 2 – September, 1996

Pests of Acorns
Swiecki, Ted. Oaks ‘n’ Folks – Volume 13, Issue 1 – February, 1998

Black Oaks Lose Leaves in El Nino Winter
McCreary, Doug and Jill Goetz. Oaks ‘n’ Folks – Volume 13, Issue 2 – August, 1998

Tanoak and Coast Live Oak Under Attack
Svihra, Pavel Horticulture Advisor. Oaks ‘n’ Folks – Volume 14, Issue 2 – August 1999

UC Response to Tanoak Sudden Death/Live Oak Mortality
Oaks ‘n Folks – Volume 15, Issue 1 – March 2000

Feral Pigs and Oak Woodland Vegetation
Bartolome, James W., Barbara Allen-Diaz, Pete van Hoorn, and Jim Robbins. Oaks ‘n’ Folks – Volume 16, Issue 2 – August 2000

Sudden Oak Death Threatens Coastal Oak Forests
McCreary, Doug. Oaks ‘n’ Folks – Volume 17, Issue 1 – February 2001

Community Involvement Needed in Monitoring Sudden Oak Death in California
Kelly, Nina Maggi. Oaks ‘n’ Folks – Volume 17, Issue 1 – February 2001

Successful Burning Strategy to Control Barbed Goatgrass
DiTomaso, Joseph, Kerry Heise, Adina Merenlender and Guy Kyser. Oaks ‘n’ Folks – Volume 17, Issue 1 – February 2001

Emergency Regulations to Protect Our Neighbors from Sudden Oak Death
Nicole K. Palkovsky and Andrew J. Storer. Oaks ’n’ Folks – Volume 17, Issue 2 – August 2001

Sudden Oak Death Update, California Aerial Survey
Lisa Fisher, USDA Forest Service, in cooperation with State and Private Forestry and California State Polytechnic San Luis Obispo. Oaks ‘n’ Folks – Volume 20, Issue 1 – January 2004