Annual Meeting Program Book - American Phytopathological Society

(1), J. Hwang (1), S. N. Jeffers (1). (1) Clemson
University, Clemson, SC, U.S.A.
P-446 Suitable tool disinfectants for tobacco mosaic virus
– Look no further than the kitchen cupboard. D.
J. LEWANDOWSKI (1), A. J. Hayes (1). (1) Ohio
State University, Columbus, OH, U.S.A.
P-447 Incidence and severity of daylily leaf streak
caused by Aureobasidium microstictum. D. J.
LEWANDOWSKI (1), M. R. Kelly (1), J. Schafer
(1), L. H. Rhodes (1). (1) Ohio State University,
P-448
Columbus, OH, U.S.A.
flash
&
dash In vitro transcripts of a full-length cDNA
clone of hosta virus X are infectious to hosta
and Nicotiana benthamiana plants. C. DE LA
TORRE (1), D. J. Lewandowski (1). (1) Ohio State
University, Columbus, OH, U.S.A.
P-449 Anthracnose: A new disease of switchgrass. Y. LI
(1), M. Windham (1), R. Trigiano (1), P. Wadl (1),
K. Moulton (1), A. Windham (2), J. Spiers (3). (1)
University of Tennessee, Knoxville, TN, U.S.A.; (2)
University of Tennessee, Nashville, TN. U.S.A.; (3)
USDA/ARS, Poplarville, MS, U.S.A.
P-450 Evaluation of four amendments as sources of
available silicon to accumulator plants grown in
soilless media. J. C. LOCKE (1), J. M. Frantz (1),
C. R. Krause (1). (1) USDA ARS ATRU, Toledo,
OH, U.S.A.
P-451 Genomic characterization of a seed-borne
caulimovirus associated with flower distortion
in Rudbeckia hirta. B. LOCKHART (1), N.
Olszewski (1), S. Mason (1). (1) Department of
Plant Pathology and Plant Biology, University of
Minnesota, St. Paul, MN, U.S.A.
P-452 Identification of Botrytis cinerea Pers.: Fr. isolated
from Rosa spp. and assessment of its sensitivity
to fungicides. R. GARCIA-VELASCO (1), J. G.
González-Díaz (1), M. D. Camacho-López (1), D.
Nieto-Angel (1). (1) Colegio de postgraduados,
Texcoco, Mexico
P-453 Phenotypic characterization of Phytophthora isolates
from North Carolina greenhouse ornamentals. H.
A. OLSON (1), D. Benson (1). (1) North Carolina
State University, Raleigh, NC, U.S.A.
P-454 Recovery of Phytophthora species from critical
control points in horticultural 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 Hort Crops Research
Lab, Corvallis, OR, U.S.A.
P-455 Identification and molecular characterization of a
new phytoplasma associated with sunshine tree stem
fasciation (STSF) disease in China. W. WU (1),
H. Cai (2), W. Wei (1), H. Chen (2), R. E. Davis
(1), Y. Zhao (1). (1) USDA ARS MPPL, Beltsville,
MD, U.S.A.; (2) Yunnan Agricultural University,
Kunming, Yunnan, China
P-456 Plant pathogenic Phytophthora species found in
Tennessee commercial nurseries. L. Santamaria (1),
M. T. MMBAGA (1), R. J. Sauve (1), F. A. Mrema
(1). (1) Tennessee State University, Otis Floyd
Research Center, McMinnville, TN, U.S.A.
P-457 Isolates of Fusarium spp. are a potential hazard to
dogwood production system. M. T. MMBAGA (1),
L. Santamaria (1). (1) Tennessee State University,
Otis Floyd Nursery Res. Center, McMinnville, TN,
U.S.A.
P-458 Leaf spots and leaf blight disease complex in
Hydrangea macrophylla. M. T. MMBAGA (1), Y.
Li (2), R. J. Sauvé (1), M. T. Windham (2). (1)
Tennessee State University, Otis Floyd Research
Center, McMinnville, TN, U.S.A.; (2) University of
Tennessee, Knoxville, TN, U.S.A.
Diseases of Turfgrasses
P-459 Evaluation of fungicide sensitivity of Typhula
ishikariensis and Typhula incarnata to fludioxonil,
propiconazole and chlorothalonil. T. BLUNT (1), J.
Hill (1), N. Tisserat (1), T. Koski (1). (1) Colorado
State University, Fort Collins, CO, U.S.A.
P-460 Characterization of unknown fungus associated with
symptoms similar to dollar spot on warm-season
turfgrass in Florida. G. T. COOPER (1), P. Harmon
(1). (1) University of Florida, Gainesville, FL,
U.S.A.
P-461 Detection of Gaeumannomyces graminis varieties, the
causal agents of take-all diseases, by real-time PCR
assay. H. FOULY (1), O. Radwan (2), B. Martin
(3). (1) Clemson University, Florence, SC, U.S.A.;
(2) University of Illinois at Urbana-Champaign,
P-462
U.S.A.; (3) Clemson University, Clemson, U.S.A.
flash
&
dash First report of a new Exserohilum disease on
bermudagrass in Texas. S. CHANDRASEKAR
(1), Y. Jo (1), M. Tomaso-Peterson (2). (1) Texas
A&M University, College Station, TX, U.S.A.;
(2) Mississippi State University, Mississippi State,
U.S.A.
P-463 WITHDRAWN
P-464 Colonization of nonwounded and wounded
creeping bentgrass (Agrostis stolonifera) by virulent
and hypovirulent isolates of Sclerotinia homoeocarpa.
A. M. ORSHINSKY (1), G. J. Boland (1). (1)
University of Guelph, Guelph, ON, Canada
P-465 Spatial and temporal occurrence of large patch disease
in northwest Arkansas. T. N. SPURLOCK (1),
E. A. Milus (1). (1) University of Arkansas, Fayetteville,
AR, U.S.A.
P-466 Determination of an etiological agent causing a
novel foliar disease of zoysiagrass. M. TOMASO-
PETERSON (1), Y. Jo (2). (1) Mississippi State
University, Mississippi State, MS, U.S.A.; (2) Texas
A&M University, U.S.A.
P-467 Response of spring dead spot caused by
Ophiosphaerella korrae and O. herpotricha to
fertilization programs and preventive fungicide
applications. L. P. TREDWAY (1), M. D. Soika (1),
E. L. Butler (1). (1) North Carolina State University,
Raleigh, NC, U.S.A.
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