Marin property owners asked to be on lookout for invasive beetle

Marin property owners asked to be on lookout for invasive beetle

(BCN) -- 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 Novato. The Mediterranean oak borer (Xyleborus monographus) is about one-eighth of an inch long and bores tunnels into stressed oaks, mostly valley oak but also other white oaks like Oregon white and blue oak, Marin agriculture officials said.…