Control of Apple Powdery Mildew in the Mid-Atlantic Region. K. S. Yoder, Virginia Polytechnic Institute and State University Fruit Research Laboratory, Winchester, VA. K. D. Hickey, Pennsylvania State University Fruit Research Laboratory, Biglerville. Plant Dis. 67:245. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-245.