The following plant pathologists provided written material, photographs, or both, for The Mid-Atlantic Orchard Monitoring Guide. Photos from the Guide were used to link to the symptom descriptions in the disease key, and photos and text from the Guide were used to develop the "fact sheet" pages.   Also, some of the authors listed below provided articles and photographs for the "Fruit Disease Focus" series.

Alan R. Biggs, West Virginia University, abiggs2@wvu.edu

John Halbrendt, Pennsylvania State University, jmh23@psu.edu

Kenneth D. Hickey (retired), Pennsylvania State University, kdh4@psu.edu

E. V. Podleckis, USDA/APHIS - Hyattsville

Jo Rytter, Pennsylvania State University, jlr5@psu.edu

John K. Springer, Rutgers University (deceased)

Paul W. Steiner, University of Maryland (deceased)

James W. Travis, Pennsylvania State University, jwt2@psu.edu

Ruth Welliver, Pennsylvania Department of Agriculture

Keith S. Yoder, Virginia Tech University, ksyoder@vt.edu

Tom van der Zwet (retired), USDA/ARS - Bardane

Additional text and photographic material were kindly provided by the authors of Diseases of Tree Fruits in the East:

Alan L. Jones (retired), Michigan State University, and,

Turner B. Sutton, North Carolina State University, Turner_Sutton@ncsu.edu

and several authors have contributed articles and photographs, including

W. F. Wilcox, Cornell University, Geneva, NY,  wfw1@cornell.edu

S. S. Miller, USDA-ARS, Appalachian Fruit Research Station, Bardane

Keith S. Yoder, Virginia Tech University, ksyoder@vt.edu

Paul W. Steiner, University of Maryland,

W. Janisiewicz, USDA-ARS, Appalachian Fruit Research Station, Bardane,

and many additional photographs were provided from my personal collection.

Web Site Author: Alan R. Biggs
Copyright ©1996-2009.