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Mendocino commission hears expert warning on Mediterranean oak borer threat
Summary
A University of California extension forester told the Mendocino County commission the Mediterranean oak borer (MOB) is established in the region, threatens valley and other native oaks, and faces limited state resources because CDFA has classified it as a "group B" pest.
Mike Jones, a University of California extension forester, told the Mendocino County Fish and Game Commission that the Mediterranean oak borer (MOB) is present in the county and poses a growing risk to valley oak and other native oaks. Jones said the pest has been detected in Napa and Sonoma counties and has been confirmed in Hopland and Potter Valley in Mendocino County.
Why it matters: Jones said MOB attacks large, older trees and can carry a symbiotic fungus that colonizes xylem and accelerates tree decline. He warned that the insect’s biology and year-round flight activity make early detection and targeted control difficult. Because the California Department of Food and Agriculture (CDFA) has ranked…
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