50 foot tall poison oak

Asked July 6, 2017, 3:59 PM EDT

Hi There, I'm not kidding. We have several 3-inch diameter poison oak vines growing 50 feet up the side of our Douglas Fir trees in our city park. How and when to attack these? The tops seem to have small berries this time of year. Should we just cut the bottoms and apply Crossbow to the stem? Will the berries fall down and sprout? Any better ideas? Thanks very much! Itching in Gladstone

Clackamas County Oregon

1 Response


Given the size of these plants and the actual hazard they represent to physically remove them, never mind the dermatological consequences, I would suggest consulting with an arborist, who have the equipment to remove it safely. You can find a certified arborist by looking over the website of the Pacific Northwest chapter of the International Society of Arboriculture. The website address is: