What is causing the leaves of my fruit trees to turn brown and fall off by September each year? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension

Question: For three years something has been causing the leaves on my ape trees to turn brown and fall off. This begins about the first of August. By late September some of the trees are leafless. It starts on the lower branches and works its way up. It also affects plum and pear trees. Would read more