Dr. Don Elfving at Washington State University is looking for ways to stimulate branching on cherry trees. The tree pictured on the left, above, is untreated. The branched tree on the right was treated with Promalin. Finding a way to stimulate branching of young cherry trees without resorting to pruning or scoring is a goal of Dr. Don Elfving, horticulturist with Washington State University in Wenatchee. Pruning can stimulate branching, though not necessarily the kind of branching the grower hopes for, Elfving said. Other disadvantages are that it involves removing some of the tree growth, and generally delays and reduces […]