Brian from Texas writes
Gallery SC Specialty Herbicide is safe to use under a very wide variety of established ornamental trees. The product label specifically lists bear oak, pin oak, willow oak, red oak, and live oak as tolerable to Gallery SC. Although we cannot be certain the manufacturer has tested your specific tree with this application, if you are following the label applications and the trees are healthy and well-established, then they should not be harmed by Gallery SC.
Answer last updated on: 10/09/2015