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Manhattan, KS, U.S.A., (2) North Dakota
State University, Fargo, ND, U.S.A., (3) Purdue
University, West Lafayette, IN, U.S.A., (4) South
Dakota State University, Brookings, SD, U.S.A., (5)
The Ohio State University, Wooster, OH, U.S.A.,
(6) University of Nebraska - Lincoln, Lincoln, NE,
U.S.A.
P-322 Fusarium head blight severity and deoxynivalenol
accumulation in wheat spike tissues as a function
of Gibberella zeae inoculum density. J. M. STEIN
(1), L. Osborne (1), K. Glover (1). (1) Plant Science
Dept., South Dakota State University, Brookings,
SD, U.S.A.
pathogen-vector interactions
P-323 Analysis of Cyclophilin involvement in CYDV-
RPV transmission by Schizaphis graminum. C.
TAMBORINDEGUY (1), S. Gray (2). (1) Cornell
University, Ithaca, NY, U.S.A., (2) USDA-ARS,
P-324
Cornell University, Ithaca, NY, U.S.A.
Flash
&
dash Characteristics of whitefly transmission of
Squash vein yellowing virus. S. E. WEBB (3), S.
Adkins (2), C. A. Baker (1). (1) Florida Department
of Agriculture and Consumer Services, Division of
Plant Industry, Gainesville, FL, U.S.A., (2) USDA-
ARS, U.S. Horticultural Research Laboratory,
Fort Pierce, FL, U.S.A., (3) University of Florida,
Entomology and Nematology, Gainesville, FL,
U.S.A.
P-325 Ophiostomataceae associated with the exotic bark
beetle, Hylurgus ligniperda (Coleoptera: Scolytidae),
in California. S. KIM (3), T. C. Harrington (3), M.
L. Flint (2), D. Liu (2), J. C. Lee (2), S. J. Seybold
(1). (1) Chemical Ecology of Forest Insects, Pacific
Southwest Research Station, USDA Forest Service,
Davis, CA, U.S.A., (2) Department of Entomology,
University of California, Davis, CA, U.S.A.,
(3) Department of Plant Pathology, Iowa State
University, Ames, IA, U.S.A.
P-326 Characterization of a Pantoea stewartii TTSS gene
required for persistence in its flea beetle vector. V.
R. CORREA (3), D. R. Majerczak (5), E. Ammar
(2), M. Merighi (5), D. L. Coplin (5), R. C. Pratt
(3), M. G. Redinbaugh (4), S. A. Hogenhout (1).
(1) Dept. of Entomology, OARDC/The Ohio State
University, U.S.A. & Dept. of Disease and Stress
Biology, John Innes Centre, Norwich, UK, (2) Dept.
of Entomology, OARDC/The Ohio State University,
U.S.A., (3) Dept. of Horticulture and Crop Science,
OARDC/The Ohio State University, U.S.A., (4)
Dept. of Plant Pathology, OARDC/The Ohio
State University & USDA, ARS Corn and Soybean
Research, Wooster, OH, U.S.A., (5) Dept. of Plant
Pathology, OARDC/The Ohio State University,
U.S.A.
P-327 Susceptibility of peaches (cv. Chimarrita) at different
ages to Monilinia fructicola infection. L. L. MAY-DE
MIO (3), L. Amorim (1), F. Fayad (2). (1) ESALQ/
USP, Piracicaba, São Paulo, Brazil, (2) UFPR,
Cutitiba, Paraná, Brazil, (3) Universidade Federal do
Paraná, Curitiba, Paraná, Brazil
P-328 Assessment of the role of alfalfa in the spread of
Xylella fastidiosa in California. M. SISTERSON (1),
K. Daane (2), S. Thammiraju (2), R. Groves (3). (1)
USDA-ARS, Parlier, CA, U.S.A., (2) University of
California, Berkeley, CA, U.S.A., (3) University of
Wisconsin, Madison, WI, U.S.A.
P-329 Quantitative analysis of tomato spotted wilt virus
(TSWV) titer in Frankliniella occidentalis and its
association with frequency of transmission. D.
ROTENBERG (3), N. K. Krishna Kumar (4) A.
E. Whitfield (3), M. Montero-Astúa (3), D. K.
Willis (5), T. L. German (2), D. E. Ullman (1).
(1) Department of Entomology, University of
California, Davis, CA, U.S.A., (2) Department of
Entomology, University of Wisconsin, Madison,
WI, U.S.A., (3) Department of Plant Pathology,
Kansas State University, Manhattan, KS, U.S.A., (4)
Indian Institute of Horticultural Research, Bangalore,
India, (5) United States Department of Agriculture,
Vegetable Crops Research Unit, Madison, WI,
U.S.A.
P-330 Navel orangeworm (Amyelois transitella) as a vector
of Aspergillus flavus on almonds. J. D. PALUMBO
(1), N. E. Mahoney (1), D. M. Light (1). (1) USDA,
ARS, Albany, CA, U.S.A.
phyllosphere/rhizosphere
P-331 Window of opportunity for root infection leading to
foliar symptoms of soybean sudden death syndrome.
C. GONGORA-CANUL (1), L. Leandro (1). (1)
Iowa State University
P-332 Effect of sorghum seedlings of different genotypes,
and previous crop, on soil microorganism
populations. D. L. FUNNELL (1), J. F. Pedersen
(1), D. B. Marx (2). (1) USDA-ARS, Lincoln, NE,
U.S.A., (2) University of Nebraska, Lincoln, NE,
U.S.A.
P-333 Classification of naturally occurring endophytes
of switchgrass (Panicum virgatum). J. D. BELL (1),
K. D. Craven (1). (1) The Samuel Roberts Noble
Foundation, Inc., Ardmore, OK, U.S.A.
P-334 DNA based detection of Epichloë/Neotyphodium
endophytes from host grasses with combined use of
FTA card and genera/species specific PCR primers.
K. SUGAWARA (1), C. Schardl (2), I. Okabe (1),
T. Tsukiboshi (1). (1) National Institute of Livestock
P-335
and Grassland Science, (2) University of Kentucky
Flash
&
dash Consequences of tillage intensity on population
densities of Heterodera glcyines and severity of sudden
death syndrome in corn-soybean sequence. A.
WESTPHAL (2), H. Mehl (2), A. Seyb (2), T. J. Vyn
(1). (1) Department of Agronomy, Purdue University,
West Lafayette, IN, U.S.A., (2) Department of
Botany and Plant Pathology, Purdue University, West
Lafayette, IN, U.S.A.
P-336 Effects of static and variable storage temperatures on
the survival and growth of Escherichia coli O157:H7
on prewashed bagged lettuce. M. R. SUDARSHANA
(2), S. Bandyopadhyay (2), C. Rosa (2), T. V.
Suslow (1), L. J. Harris (2). (1) Department of Plant
Sciences, University of California, Davis, CA, U.S.A.,
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