Survey detects viruses in almond, prune, and sweet cherry orchards
Jerry K. Uyemoto, USDA-ARS, Department of Plant Pathology, University of California, Davis
Joseph A. Grant, UC Cooperative Extension, San Joaquin County
William H. Krueger, Glenn County
William H. Olson, Butte County
Joseph W. Osgood, Tehama County
G. Steven Sibbet, Tulare County
Mario Viveros, Kern County
Craig V. Weakley, Sutter-Yuba Counties
California Agriculture 43(5):14-15. DOI: 10.3733/ca.v043n05p14.
Jerry K. Uyemoto is Research Plant Pathologist, USDA-ARS, Department of Plant Pathology, University of California, Davis; Joseph A. Grant is Farm Advisor, UC Cooperative Extension, San Joaquin County; William H. Krueger is Farm Advisor, Glenn County; William H. Olson is Farm Advisor, Butte County; Joseph W. Osgood is Farm Advisor, Tehama County; G. Steven Sibbett is Farm Advisor, Tulare County; Mario Viveros is Farm Advisor, Kern County; Craig V. Weakley is Farm Advisor, Sutter-Yuba Counties.
Prunus necrotic ringspot and/or prune dwarf viruses were found in young California orchards, averaging 20% infection in almond and prune and 4% in sweet cherry. Nursery stock was implicated as the primary source, and efforts are now under way to propagate disease-free trees.