The goldspotted oak-borer, an invasive beetle responsible for killing 200,000 trees in Southern California, is now present in ...

Invasive goldspotted oak borers have been newly detected in Ventura County. UC ANR is calling on community scientists to ...

It’s less than a half-inch long but it can fell a giant oak tree in no time. The goldspotted oak borer, GSOB or Agrilus auroguttatus, is a 0.4-inch bullet-shaped beetle with six golden spots on its ...

Safeguarding your trees against pests is important to their health and longevity. Invasive species can wreak havoc by defoliating or infecting trees, and left untreated, can lead to loss of limbs and ...