What started as a regular, hot afternoon turned into a nightmare for San Mateo handyman Humberto Montoya and his 4-year-old son, Ysander. They were relaxing in the shade when a massive valley oak tree ...

In May 2026, Sudden Oak Death (Phytophthora ramorum, SOD) was detected on several tan oak trees located on the Hoopa Valley ...

After years of fierce debate, a large-scale Southern California development project seems to have finally moved past its tallest hurdle: protecting one of the world’s oldest trees. Jurupa Valley, the ...

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 ...