Previous View
 
APSnet Home
 
Plant Disease Home


VIEW ARTICLE

Research

Apple Powdery Mildew and Scab Control Studies in the Pacific Northwest. R. A. Spotts, Associate Professor, Department of Botany and Plant Pathology, Oregon State University, Mid-Columbia Experiment Station, 3005 Experiment Station Drive, Hood River 97031. R. P. Covey, Associate Plant Pathologist, Washington State University, Tree Fruit Research Center, Wenatchee 98801; and Iain C. MacSwan, Extension Plant Pathologist, Oregon State University, Corvallis 97331. Plant Dis. 65:1006-1009. Accepted for publication 17 February 1981. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-1006.

The sterol-inhibiting fungicides bitertanol, triadimefon, fenapanil, and CGA 64251 were all effective in the control of apple mildew and scab. Factors influencing the occurrence of these diseases in the major fruit-growing areas of the Pacific Northwest are discussed.