by Pothier, J.F., Pagani, M.C., Pelludat, C., Ritchie, D.F., Duffy, B.
Published in Journal of microbiological methods (01.07.2011)

by Worthington, R J, Rogers, S A, Huigens, 3rd, R W, Melander, C, Ritchie, D F
Published in Plant disease (01.11.2012)

by Romero, A M, Kousik, C S, Ritchie, D F
Published in Plant disease (01.02.2001)

by Romero, A.M, Ritchie, D.F
Published in Phytopathology (01.12.2004)

by Pooler, M.R. (U.S. National Arboretum, Washington, DC.), Ritchie, D.F, Hartung, J.S
Published in Applied and Environmental Microbiology (01.09.1996)

by Roberts, J A, Tredway, L P, Ritchie, D F
Published in Plant disease (01.06.2014)

by Kousik, C S, Ritchie, D F
Published in Plant disease (01.02.1998)

by ROMERO, A. M, KOUSIK, C. S, RITCHIE, D. F
Published in Phytopathology (01.02.2002)

by Kousik, C.S, Ritchie, D.F
Published in Phytopathology (01.11.1999)

by Kousik, C.S. (North Carolina State University, Raleigh.), Ritchie, D.F
Published in Phytopathology (01.09.1996)

by KOUSIK, C. S, SANDERS, D. C, RITCHIE, D. F
Published in Phytopathology (1996)

by KOUSIK, C. S, RITCHIE, D. F
Published in Phytopathology (01.12.1996)

by Hammerschlag, F.A. (Plant Molecular Biology Lab. USDA-ARS, Beltsville, MD (USA)), Werner, D.J, Ritchie, D.F
Published in Euphytica (1994)

by Werner D.J, Ballington J.R, Ritchie D.F
Published in HortScience (01.02.1989)

by Sutton, T B, Ritchie, D F
Published in Phytopathology (01.07.1999)

by Ritchie, D F, Yoder, K S, Egel, D S
Published in Phytopathology (01.06.2008)

by Katawczik, M L, Ritchie, D F
Published in Phytopathology (01.06.2006)

by Dittapongpitch, V, Ritchie, D.F
Published in Phytopathology (01.09.1993)

by Ritchie, D F
Published in Pharmacy practice management quarterly (01.07.1996)

by Carballo S.J, Blankenship S.M, Sanders D.C, Ritchie D.F
Published in Journal of plant nutrition (01.06.1994)