We want to take a short moment to inform our clients of our current recommendations with respect to prevention of this disease. The University of California indicates the best time to treat live oaks or evergreens is in November/December or in fall depending on temperatures. Black oaks should be treated in March or early spring. Due to substantial pressure from the pathogen causing SOD, we have treated trees at various times of the year. We recommend two treatments the first year and one every November following the first treatment. We have also treated for bark beetles independent of SOD to maximize efficiency in protecting your trees from more than one pest at the same time. Beetle treatments when the insects are not present and are done in accordance with manufacturer and label uses. Guidelines for various levels of managing this disease can be found at www.suddenoakdeath.org.
We currently have state licensed applicators that have been through the University of California Training to perform the applications. Licenses held by our staff include Qualified Applicators License, Qualified Applicator’s Certificate, and Pest Control Advisers License. Licensing is administered by CAL EPA’s Department of Pesticide Regulation. Other staff certifications include ISA Certified Tree Workers, ISA Certified Arborists and ISA Board Certified Master Arborist. Please contact our office to determine if treatment is necessary for your trees.
Your guys did an excellent job—and we are very pleased with the service provided and clean-up. Thanks Mike, Portola Valley