GSOB found in Idyllwild. Pest has killed 80,000 oaks in San Diego County
The Goldspotted oak borer, the non-native beetle that has killed more than 80,000 oaks in San Diego County, has been positively identified in an Idyllwild oak, on Highway 243 near the center of town. Currently, entomologists know of no native California predator or insecticidal defense against the tree killer. A DNA analysis, conducted by the…