See the program book (PDF) - American Phytopathological Society

2008 APS POSteRS
P-230 Occurrence of Dickeya chrysanthemi (Erwinia
chrysanthemi) on Vanda orchids in Florida. R. A.
CATING (1), J. C. Hong (1), A. J. Palmateer (1), C.
M. Stiles (1), E. R. Dickstein (1). (1) University of
Florida
P-231 Aggressiveness of Phytophthora cactorum and
Phytophthora citricola isolates on European beech and
lilac. J. E. WEILAND (2), A. H. Nelson (1), G. W.
Hudler (1). (1) Department of Plant Pathology and
Plant-Microbe Biology, Cornell University, Ithaca,
NY, U.S.A., (2) USDA ARS, Corvallis, OR, U.S.A.
P-232 Association of Seuratia millardetii (Myriangiales)
with a false sooty mold disorder of Camellia species.
I. M. Gillis (1), D. A. GLAWE (2). (1) University of
Washington, Seattle, WA, U.S.A., (2) Washington
State Univ./Univ. Washington, Seattle, WA, U.S.A.
P-233 The influence of phosphorus concentration on the
development of Pythium root rot disease of seedling
geranium. M. OMER (1), J. Locke (1), J. Frantz (1),
C. Krause (1). (1) USDA-ARS
P-234 Occurrence in the U.S. of tar spot, caused by
Diatractium cordianum, on orange Geiger, Cordia
sebestena. A. J. PALMATEER (1), J. M. Perez-
Martinez (1), R. A. Cating (1), R. C. Ploetz (1). (1)
University of Florida, Homestead, FL, U.S.A.
P-235 Pathogenicity testing of Agrobacterium tumefaciens
and Rhodococcus fascians isolates on micropropagated
plants. M. L. MILLER (1), M. L. Putnam (1). (1)
Oregon State University, Corvallis, OR, U.S.A.
P-236 A new disease of Syzygium paniculatum (Myrtaceae).
R. C. PLOETZ (1), J. M. Perez-Martinez (1). A. J.
Palmateer (1). (1) University of Florida, Homestead,
FL, U.S.A.
P-237 Leaf spot on Tigergrass caused by Exserohilum
rostratum in Florida. A. M. BRUNINGS (1), L. E.
Datnoff (1), A. J. Palmateer (4), J. C. Locke (2), J.
M. Frantz (2), C. R. Krause (3). (1) Department of
Plant Pathology, Gainesville, FL, U.S.A., (2) USDA-
ARS, Toledo, OH, U.S.A., (3) USDA-ARS, Wooster,
OH, U.S.A., (4) University of Florida, Homestead,
FL, U.S.A.
P-238 A systems approach for managing Phytophthora
diseases in production nurseries. J. L. PARKE (1),
N. Grunwald (2), C. Lewis (1), V. Fieland (2). (1)
Oregon State University, Corvallis, OR, U.S.A.,
(2) USDA-ARS Horticultural Crops Research
Laboratory, Corvallis, OR, U.S.A.
P-239 Detection of Agrobacterium tumefaciens in soil.
E. MEEKES (2), R. Butôt (2), S. Lieten (1),
B. Geurkink (1), I. Dinkla (1). (1) Bioclear,
Groningen, the Netherlands, (2) Naktuinbouw,
Roelofarendsveen, the Netherlands
P-240 The pathogenicity and phylogeny of Fusarium
oxysporum isolates on Coreopsis verticillata
‘Moonbeam’. W. H. ELMER (3), M. M. Jimenez-
Gasco (2), M. L. Daughtrey (1). (1) Cornell
University, (2) Pennsylvania State University, (3) The
CT Agr. Exp. Sta.
80
P-241 Further characterization of the toti-like virus causing
yellow leafspot of spiraea, and its occurrence in
diseased aspen in Minnesota. B. E. LOCKHART (1).
(1) University of Minnesota
P-242 Condensed nucleoprotein helices containing circular
ssDNA may represent a novel type of plant virus. B.
E. LOCKHART (1). (1) University of Minnesota
P-243 Identification of a previously undescribed flexivirus
causing island chlorosis of hackberry in Minnesota.
B. E. LOCKHART (1). (1) University of Minnesota
P-244 An undescribed dsRNA virus from Rhododendron.
S. SABANADZOVIC (1), N. Abou Ghanem-
Sabanadzovic (1), D. L. Gutierrez (2), R. A. Valverde
(2). (1) Department of Entomology and Plant
Pathology, Mississippi State University, Mississippi
State, MS, U.S.A., (2) Department of Plant
Pathology and Crop Physiology, Louisiana State
University AgCenter, Baton Rouge, LA, U.S.A.
P-245 New and emerging virus threats for nursery and
ornamental crops in the Pacific Northwest. H.
PAPPU (2), K. Eastwell (1), K. Druffel (2). (1)
Washington State University, IAREC, Prosser, WA,
U.S.A., (2) Washington State University, Pullman,
WA, U.S.A.
P-246 Detection of Puccinia pelargonii-zonalis on
greenhouse grown geraniums using a real-time PCR
assay. E. A. SCOCCO (1), J. Buck (2), R. Walcott
(1). (1) University of Georgia, Department of Plant
Pathology, Athens, GA, U.S.A., (2) University of
Georgia, Department of Plant Pathology, Griffin,
GA, U.S.A.
P-247 Impact of episodic root stress on the susceptibility
of Rhododendron sp. and Viburnum tinus to
Phytophthora ramorum. T. V. ROUBTSOVA (1), R.
M. Bostock (1). (1) University of California, Davis,
Dept. Plant Pathology, Davis, CA, U.S.A.
P-248 Characterization of Verbena virus Y, a new
component in the complex causing necrosis in
verbena ‘Taylortown Red’. I. E. TZANETAKIS (1),
S. Cleveland (1), J. Kraus (1), M. L. Putnam (1),
R. R. Martin (2). (1) Department of Botany and
Plant Pathology, Oregon State University, Corvallis,
OR, U.S.A., (2) USDA-ARS Horticultural Crops
Research Lab, Corvallis, OR, U.S.A.
P-249 Effect of nitrogen fertilization on colonization of
anthurium leaves by Xanthomonas axonopodis pv.
dieffenbachiae. M. Schwiertz (1), G. D. PECKHAM
(2), A. M. Alvarez (2). (1) HS Mannheim University
of Applied Sciences, Mannheim, Germany, (2)
University of Hawaii, Honolulu, HI, U.S.A.
P-250 Effect of nozzle type and water volume on dollar spot
control in creeping bentgrass. M. M. KENNELLY
(1), R. Wolf (1). (1) Kansas State University,
Manhattan, KS, U.S.A.
P-251 Seasonal activity of leaf spot pathogens of
bermudagrass. M. TOMASO-PETERSON (1),
J. Young (1). (1) Mississippi State University,
Mississippi State, MS, U.S.A.