Urban Forestry
About
Invasive tree pests are threatening the integrity of the urban forest in Southern California. Particularly, two species of invasive beetles (the invasive shot-hole borers and the gold-spotted oak borer) are affecting thousands of trees in urban landscapes and adjacent natural areas. The Urban Forestry program aims to prevent pest problems and control current infestations in Orange County. We also collaborate with other counties in an effort to stop the spread of these dangerous pests to new uninfested areas.
We provide guidance to public and private entities on how to implement integrated pest management programs to deal with tree pests. We work together with landscape managers to find solutions that minimize the use of pesticides while providing effective management.
Helpful Resources
Fire in California Resources
https://ucanr.edu/sites/fire
Integrated Pest Management
http://ipm.ucanr.edu
Free Invasive Shot-Hole Borer Online Course
https://campus.extension.org/enrol/index.php?id=1704
Tree Pest Hotline
Connect with us!
Invasive Shot Hole Borer (ISHB)
Two closely related species of small, non-native beetles and the fungi they carry pose an imminent threat to millions of trees in Southern California. Invasive shot hole borers (ISHB) attack a wide variety of tree species including commercial avocado groves, common landscape trees and native species in urban and wildland environments.
These beetles tunnel into tree trunks and branches creating channels called galleries. In the process, they introduce fungi that grow in the galleries and later serve as the food source for ISHB larva. The fungi also destroy the food and water conducting systems of the tree, eventually causing stress, dieback and ultimately death of the tree.
For more information about invasive shot hole borers, please visit ishb.org.
Contact Info
Title: Urban Forestry and Natural Resources Advisor
Address:
South Coast Research and Extension Center
7601 Irvine Blvd.
Irvine, CA 92618
Phone: (949) 301-9182 Ext 1006
Email: benobua@ucanr.edu
Title: ISHB Communications Coordinator
Address:
UC ANR: Integrated Pest Management
2801 Second Street
Davis, CA 95618-7774
Phone: 9493019182 ext 1012
Email: rdoliver@ucanr.edu
Title: Statewide Survey and Trapping Coordinator
Specialty: Invasive Shot Hole Borer/Fusarium Dieback
Address:
South Coast Research and Extension Center
7601 Irvine Blvd
949 301-9182 x1007
Irvine, CA 92618
Phone: 949 301-9182 x1007
Email: hrvasilis@ucanr.edu
