UCCE Highlights

Sudden Oak Death Discovered in Redwood National Park

Suspecting that the sudden oak death may be spreading down the Redwood Creek corridor from the closest known infestation in the area--near the residential area of Redwood Valley--the team started on a 3-day trip down Redwood Creek, on foot, from Lacks Creek (about 7 creek miles upstream of the southern Park boundary). To their surprise, they found infected trees 15 creek miles northwest of the nearest known infestation, not far upstream of the well-known Tall Trees Grove in the Park. Further aerial and ground scouting turned up another infestation 2 air miles farther north along Redwood Creek in the Park. How the disease spread here is unknown. The Park's vegetation manager has instigated treatments of the infestations to reduce local spread. This disease point is the farthest north in California and puts the disease close to Yurok tribal lands and Del Norte County.