Agriculture officials in Marin County are alerting property owners and arborists to be on the lookout for a tiny invasive beetle that attacks oak trees, after the insect was detected last month in ...

CalFire teams from San Bernardino County are removing dead trees to stop the spread. The boring insect has reached oak trees in Orange County’s Great Park, as well as in Oak Glen, a mountain ...

Oak decline disease is not just limited to one particular species and has been observed in numerous different trees with the most severe outbreaks noted in red, pin, scarlet, white, and black oaks.