Annual Meeting Program Book - American Phytopathological Society

2009 aPs PosTers
Diseases of Vegetables
P-468 Green tomato fruits are predisposed to sour rot
when congested with water. J. A. BARTZ (1),
G. Karuiki (2), S. A. Jordan (1). (1) University
of Florida, Gainesville, FL, U.S.A.; (2) National
Agricultural Research Laboratories, Kenya Agric.
Institute, Nairobi, Kenya
P-469 First report of tomato foliar blight caused by
Rhizoctonia solani AG-3 basidiospore infection in
North America. K. L. Ivors (1), F. E. Bartz (1), T.
Toda (2), S. Naito (3), M. A. CUBETA (1). (1)
North Carolina State University, Raleigh, NC,
U.S.A.; (2) Faculty of Bioresource Science, Akita
Prefectural University, Shimo-shinjo, Akita, Japan;
(3) Hokkaido University, Kyoto, Japan
P-470 Characterization of aster yellows phytoplasma strains
in leafy green crops in Ohio. S. Y. ELATEEK (1),
M. L. Lewis Ivey (1), S. A. Miller (2). (1) Ohio State
University, Wooster, OH, U.S.A.; (2) Ohio State
74
University - OARDC, Wooster, OH, U.S.A.
P-471
flash
&
dash The occurrence of at least four haplotypes of
P-472
Phytophthora capsici in Texas from isolates recovered
and characterized in 2006–2008. R. D. FRENCH-
MONAR (1), T. Isakeit (2), Z. Abad (3), A. F.
Patton (1). (1) Dept. of Plant Pathology, AgriLife
Extension-Texas A&M System, Amarillo, TX,
U.S.A.; (2) Dept. of Plant Pathology, Texas AgriLife
Extension, TAMU, College Station, TX, U.S.A.; (3)
USDA-APHIS-PPQ-PHP-PSPI-MDL, Beltsville,
MD, U.S.A.
Rhizoctonia solani AG-5 is associated with root rot
of field pea in North Dakota. R. S. GOSWAMI (1),
F. M. Mathew (1), R. S. Lamppa (1), Y. Chang (1),
S. G. Markell (1). (1) North Dakota State University,
Fargo, ND, U.S.A.
P-473 Silver scurf caused by Helminthosporium solani can
be a polycyclic disease on potato tubers, below
ground. D. INGLIS (1), B. Gundersen (1), D.
McMoran (2), P. Hamm (3). (1) WSU-NWREC,
Mount Vernon, WA, U.S.A.; (2) WSU/Skagit
County Extension, Mount Vernon, WA, U.S.A.; (3)
OSU-HAREC, Hermiston, OR, U.S.A.
P-474 First report of Fusarium oxysporum f. sp. niveum
race 2 in South Carolina watermelon fields. A.
P. KEINATH (1), V. DuBose (1). (1) Clemson
University, Coastal REC, Charleston, SC, U.S.A.
P-475
flash
&
dash Accounting for host resistance in Stevens’
P-476
forecast of Stewart’s wilt caused by Pantoea stewartii.
M. D. MEYER (1), J. K. Pataky (1), R. W. Esgar
(1), D. K. Joos (1), B. R. Henry (1). (1) Department
of Crop Sciences, University of Illinois, Urbana, IL,
U.S.A.
Characterization of new races of Phytophthora capsici
foliar blight syndrome in Capsicum annuum. L.A.
MONROY-BARBOSA (1), P. W. Bosland (1). (1)
New Mexico State University, Las Cruces, NM,
U.S.A.
P-477 Phenotypic and etiological differences between psyllid
yellows and zebra chip diseases of potato. V. G.
SENGODA (1), J. E. Munyaneza (2), J. M. Crosslin
(3), J. L. Buchman (2), H. R. Pappu (4). (1)
USDA-ARS, Yakima Agricultural Research Laboratory,
Wapato, WA; Washington State University, Department
of Plant Pathology, Pullman, WA, U.S.A.;
(2) USDA-ARS, Yakima Agricultural Research
Laboratory, Wapato, WA, U.S.A.; (3) USDA-ARS,
Vegetable and Forage Crop Research Unit, Prosser,
WA, U.S.A.; (4) Washington State University, Department
of Plant Pathology, Pullman, WA, U.S.A.
P-478 Tuber symptoms are induced in potato by a range of
potato virus Y strains. J. L. WHITWORTH (1), S.
M. Gray (2), A. V. Karasev (3), J. H. Lorenzen (4).
(1) USDA ARS, Aberdeen, ID, U.S.A.; (2) USDA-
ARS/Ithaca, NY, U.S.A.; (3) University of Idaho/
Moscow, ID, U.S.A.; (4) International Institute of
Tropical Agriculture/Kampala, Uganda
P-479 Effects of a crude toxin from cultures of Fusarium
oxysporum f. sp. conglutinans on the germination of
cabbage seed. Y. ZHANG (1), J. Li (1), M. Davis
(2). (1) China Agricultural University, Beijing,
China; (2) University of California, Davis, CA,
P-480
U.S.A.
flash
&
dash Detection of different PVY strains from
potato in Iran. L. MOSAVI (1), J. Mozafari (2),
F. Rakhshandehroo (3), S. Ghadamyari (4), N.
Sokhandan Bashir (4). (1) Department of Genetics
and National Plant Gene-Bank, Seed and Plant
Improvement Institute, Karaj, Iran, Tehran, Iran; (2)
Department of Genetics and National Plant Gene-
Bank, Seed and Plant Improvement Institute, Karaj,
Iran; (3) Department of Plant Pathology, Islamic
Azad University, Science and Research Branch,
Tehran, Iran; (4) Department of Plant Pathology,
Tabriz University, Tabriz, Iran
P-481 Characterization of Rhizoctonia solani isolates from
potato and sugar beet. M. SAFFARIAN ABBAS
ZADEH (1), R. Farokhi Nejad (2), B. Mahmoudi
(3). (1) Chamran University, Ahvaz, Khuzestan,
Iran; (2) Department of Plant Protection, Collage
of Agriculture, Shahid Chamran University, Ahvaz,
Khuzestan, Iran; (3) Sugar Beet Seed Institute,
Karaj, Tehran, Iran
P-482 Pathogenic variability among the isolates of
Rhizoctonia solani recovered from potato tubers
and sugar beet. M. SAFFARIAN ABBAS ZADEH
(1), R. Farokhi Nejad (1), B. Mahmoudi (2).
(1) Department of Plant Protection, Collage of
Agriculture, Shahid Chamran University, Ahvaz,
Khuzestan, Iran; (2) Sugar Beet Seed Institute,
Karaj, Tehran, Iran