David H. Gent

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See David H. Gent in the ISPI database of scientists.


Publications of David H. Gent

Phytopathology (2018) 108, 15-22
David H. Gent, Paul D. Esker and Alissa B. Kriss (2018)
Statistical power in plant pathology research

Euphytica (2017) 213 (3 - 98)
J.A. Henning, D.H. Gent, M.S. Townsend, J.L. Woods, S.T. Hill and D. Hendrix (2017)
QTL analysis of resistance to powdery mildew in hop (Humulus lupulus L.)

Plant Disease (2017) 101, 874-881
David H. Gent, Stephen T. Massie, Megan C. Twomey and Sierra N. Wolfenbarger (2017)
Adaptation to partial resistance to powdery mildew in the hop cultivar Cascade by Podosphaera macularis

Plant Disease (2016) 100, 1599-1605
Claudia Probst, Mark E. Nelson, Gary G. Grove, Megan C. Twomey and David H. Gent (2016)
Hop powdery mildew control through alteration of spring pruning practices

Phytopathology (2016) 106, 1105-1116
S. Withers, E. Gongora-Castillo, D. Gent, A. Thomas, P.S. Ojiambo and L.M. Quesada-Ocampo (2016)
Using next-generation sequencing to develop molecular diagnostics for Pseudoperonospora cubensis, the cucurbit downy mildew pathogen

Plant Disease (2016) 100, p. 861 (Twomey et al.)
M.C. Twomey, J.K. Stone and D.H. Gent (2016)
Black wilt of hop (Humulus lupulus) caused by Diplodia seriata in New York State

Plant Disease (2016) 100, p. 1245 (Wolfenbarger et al.)
S.N. Wolfenbarger, L.M. Quesada-Ocampo and D.H. Gent (2016)
Powdery mildew caused by Podosphaera macularis on hop (Humulus lupulus) in North Carolina

Plant Disease (2016) 100, 1153-1160
David H. Gent, Claudia Probst, Mark E. Nelson, Gary G. Grove, Stephen T. Massie and Megan C. Twomey (2016)
Interaction of basal foliage removal and late-season fungicide applications in management of hop powdery mildew

Euphytica (2016) 208, 545-559
J.A. Henning, D.H. Gent, M.C. Twomey, M.S. Townsend, N.J. Pitra and P.D. Matthews (2016)
Genotyping-by-sequencing of a bi-parental mapping population segregating for downy mildew resistance in hop (Humulus lupulus L.)

Plant Disease (2016) 100, 1212-1221
Sierra N. Wolfenbarger, Stephen T. Massie, Cynthia Ocamb, Emily B. Eck, Gary G. Grove, Mark E. Nelson, Claudia Probst, Megan C. Twomey and David H. Gent (2016)
Distribution and characterization of Podosphaera macularis virulent on hop cultivars possessing R6-based resistance to powdery mildew

PLoS ONE (2015) 10 (11 - e0143665)
Carly F. Summers, Colwyn M. Gulliford, Craig H. Carlson, Jacquelyn A. Lillis, Maryn O. Carlson, Lance Cadle-Davidson, David H. Gent and Christine D. Smart (2015)
Identification of genetic variation between obligate plant pathogens Pseudoperonospora cubensis and P. humuli using RNA sequencing and genotyping-by-sequencing

Plant Disease (2015) 99, 858-865
David H. Gent, Megan C. Twomey, Sierra N. Wolfenbarger and Joanna L. Woods (2015)
Pre- and postinfection activity of fungicides in control of hop downy mildew

Canadian Journal of Plant Pathology (2015) 37, 315-330
Carly F. Summers, Nanci L. Adair, David H. Gent, Margaret T. McGrath and Christine D. Smart (2015)
Pseudoperonospora cubensis and P. humuli detection using species-specific probes and high definition melt curve analysis

Plant Pathology (2015) 64, 1094-1102
S.N. Wolfenbarger, M.C. Twomey, D.M. Gadoury, B.J. Knaus, N.J. Grünwald and D.H. Gent (2015)
Identification and distribution of mating-type idiomorphs in populations of Podosphaera macularis and development of chasmothecia of the fungus

Canadian Journal of Plant Pathology (2015) 37, 179-187
Thomas B. O'Malley, Frank S. Hay, Jason B. Scott, David H. Gent, Roger G. Shivas and Sarah J. Pethybridge (2015)
Carpogenic germination of sclerotia of Sclerotinia minor and ascosporic infection of pyrethrum flowers

PLoS ONE (2015) 10 (3 - e0120987)
Megan C. Twomey, Sierra N. Wolfenbarger, Joanna L. Woods and David H. Gent (2015)
Development of partial ontogenic resistance to powdery mildew in hop cones and its management implications

Plant Disease (2015) 99, 1227-1235
Frank S. Hay, David H. Gent, Stacey J. Pilkington, Tamieka L. Pearce, Jason B. Scott and Sarah J. Pethybridge (2015)
Changes in distribution and frequency of fungi associated with a foliar disease complex of pyrethrum in Australia

Annual Review of Phytopathology (2015) 53, 223-246
Peter S. Ojiambo, David H. Gent, Lina M. Quesada-Ocampo, Mary K. Hausbeck and Gerald J. Holmes (2015)
Epidemiology and population biology of Pseudoperonospora cubensis: A model system for management of downy mildews

Euphytica (2015) 202, 487-498
J.A. Henning, D.H. Gent, M.C. Twomey, M.S. Townsend, N.J. Pitra and P.D. Matthews (2015)
Precision QTL mapping of downy mildew resistance in hop (Humulus lupulus L.)

Plant Disease (2015) 99, 632-640
Mark E. Nelson, David H. Gent and Gary G. Grove (2015)
Meta-analysis reveals a critical period for management of powdery mildew on hop cones

Plant Pathology (2014) 63, 625-639
D.H. Gent, G.G. Grove, M.E. Nelson, S.N. Wolfenbarger and J.L. Woods (2014)
Crop damage caused by powdery mildew on hop and its relationship to late season management

Southwestern Entomologist (2014) 39, 691-704
H.F. Schwartz, D.H. Gent, S.M. Fichtner, K. Otto, C.O. Boateng, S. Szostek, W.S. Cranshaw and L.A. Mahaffey (2014)
Thrips tabaci (Thysanoptera: Thripidae) and Iris yellow spot virus associated with onion transplants, onion volunteers, and weeds in Colorado

Plant Disease (2014) 98, 1024-1035
Jennifer Sherman and David H. Gent (2014)
Concepts of sustainability, motivations for pest management approaches, and implications for communicating change

Plant Disease (2014) 98, 267-274
Jason B. Scott, David H. Gent, Sarah J. Pethybridge and Frank S. Hay (2014)
Spatiotemporal characterization of Sclerotinia crown rot epidemics in pyrethrum

Journal of Economic Entomology (2014) 107, 570-581
J.L. Woods, A.J. Dreves, D.G. James, J.C. Lee, D.B. Walsh and D.H. Gent (2014)
Development of biological control of Tetranychus urticae (Acari: Tetranychidae) and Phorodon humuli (Hemiptera: Aphididae) in Oregon hop yards

Plant Disease (2014) 98, 103-111
Jason B. Scott, David H. Gent, Sarah J. Pethybridge, Tim Groom and Frank S. Hay (2014)
Crop damage from Sclerotinia crown rot and risk factors in pyrethrum

Journal of Economic Entomology (2014) 107, 875-879
J.L. Woods and D.H. Gent (2014)
Suppression of hop looper (Lepidoptera: Noctuidae) by the fungicide pyraclostrobin

Plant Disease (2014) 98, p. 852 (Wolfenbarger et al.)
S.N. Wolfenbarger, E.B. Eck, C.M. Ocamb, C. Probst, M.E. Nelson, G.G. Grove and D.H. Gent (2014)
Powdery mildew outbreaks caused by Podosphaera macularis on hop cultivars possessing the resistance gene R6 in the Pacific northwestern United States

Plant Disease (2013) 97, 1431-1437
Sarah J. Pethybridge, David H. Gent, Tim Groom and Frank S. Hay (2013)
Minimizing crop damage through understanding relationships between pyrethrum phenology and ray blight disease severity

Annual Review of Phytopathology (2013) 51, 267-289
David H. Gent, Walter F. Mahaffee, Neil McRoberts and William F. Pfender (2013)
The use and role of predictive systems in disease management

Plant Disease (2012) 96, 1343-1351
David H. Gent, Mark E. Nelson, Gary G. Grove, Walter F. Mahaffee, William W. Turechek and Joanna L. Woods (2012)
Association of spring pruning practices with severity of powdery mildew and downy mildew on hop

Plant Disease (2012) 96, p. 583 (Kropf et al.)
S.M. Kropf, M.L. Putnam, M. Serdani, M.C. Twomey, J.L. Woods and D.H. Gent (2012)
Sclerotinia wilt of hop (Humulus lupulus) caused by Sclerotinia sclerotiorum in the Pacific Northwest United States

Plant Pathology (2012) 61, 37-47
D.H. Gent, J.L. Farnsworth and D.A. Johnson (2012)
Spatial analysis and incidence-density relationships for downy mildew on hop

Plant Disease (2012) 96, 726-736
W.F. Pfender, D.H. Gent and W.F. Mahaffee (2012)
Sensitivity of disease management decision aids to temperature input errors associated with sampling interval and out-of-canopy sensor placement

Environmental Entomology (2012) 41, 621-635
J.L. Woods, A.J. Dreves, G.C. Fisher, D.G. James, L.C. Wright and D.H. Gent (2012)
Population density and phenology of Tetranychus urticae (Acari: Tetranychidae) in hop is linked to the timing of sulfur applications

Phytopathology (2011) 101, 805-818
Melanie N. Mitchell, Cynthia M. Ocamb, Niklaus J. Grünwald, Leah E. Mancino and David H. Gent (2011)
Genetic and pathogenic relatedness of Pseudoperonospora cubensis and P. humuli

Phytopathology (2011) 101, 1112-1121
Sarah J. Pethybridge, David H. Gent and Frank S. Hay (2011)
Epidemics of ray blight on pyrethrum are linked to seed contamination and overwintering inoculum of Phoma ligulicola var. inoxydabilis

Plant Pathology (2011) 60, 1169-1182
S.J. Jones, D.H. Gent, S.J. Pethybridge and F.S. Hay (2011)
Spatial characteristics of white mould epidemics and the development of sequential sampling plans in Australian bean fields

Experimental and Applied Acarology (2011) 55, 401-416
J.L. Woods, D.G. James, J.C. Lee and D.H. Gent (2011)
Evaluation of airborne methyl salicylate for improved conservation biological control of two-spotted spider mite and hop aphid in Oregon hop yards

Euphytica (2011) 180, 411-420
John A. Henning, M. Shaun Townsend, David H. Gent, Nahla Bassil, Paul Matthews, Emily Buck and Ron Beatson (2011)
QTL mapping of powdery mildew susceptibility in hop (Humulus lupulus L.)

Plant Disease (2010) 94, 425-431
David H. Gent, Cynthia M. Ocamb and Joanna L. Farnsworth (2010)
Forecasting and management of hop downy mildew

Plant Disease (2010) 94, 1305-1313
Sarah J. Pethybridge, Frank S. Hay and David H. Gent (2010)
Characterization of the spatiotemporal attributes of Sclerotinia flower blight epidemics in a perennial pyrethrum pathosystem

Plant Pathology (2009) 58, 1081-1091
D.H. Gent, M.E. Nelson, J.L. Farnsworth and G.G. Grove (2009)
PCR detection of Pseudoperonospora humuli in air samples from hop yards

Journal of Economic Entomology (2009) 102, 274-286
D.H. Gent, D.G. James, L.C. Wright, D.J. Brooks, J.D. Barbour, A.J. Dreves, G.C. Fisher and V.M. Walton (2009)
Effects of powdery mildew fungicide programs on twospotted spider mite (Acari: Tetranychidae), hop aphid (Hemiptera: Aphididae), and their natural enemies in hop yards

Plant Disease (2009) 93, 229-237
Sarah J. Pethybridge, David H. Gent, Paul D. Esker, William W. Turechek, Frank S. Hay and Forrest W. Nutter Jr. (2009)
Site-specific risk factors for ray blight in Tasmanian pyrethrum fields

Plant Disease (2009) 93, 281-286
Amy B. Peetz, Walter F. Mahaffee and David H. Gent (2009)
Effect of temperature on sporulation and infectivity of Podosphaera macularis on Humulus lupulus

Phytopathology (2009) 99, 1190-1198
David H. Gent and Cynthia M. Ocamb (2009)
Predicting infection risk of hop by Pseudoperonospora humuli

Southwestern Entomologist (2009) 34, 13-29
Howard F. Schwartz, David H. Gent, Scott M. Fichtner, Robert Hammon, Whitney S. Cranshaw, Linda Mahaffey, Matt Camper, Kristen Otto and Mark McMillan (2009)
Straw mulch and reduced-risk pesticide impacts on thrips and Iris yellow spot virus on western-grown onions

Plant Disease (2008) 92, 463-468
David H. Gent, Mark E. Nelson and Gary G. Grove (2008)
Persistence of phenylamide insensitivity in Pseudoperonospora humuli

Plant Disease (2007) 91, 871-878
Jillian M. Lang, David H. Gent and Howard F. Schwartz (2007)
Management of Xanthomonas leaf blight of onion with bacteriophages and a plant activator

International Journal of Acarology (2007) 33, 307-318
V.M. Walton, A.J. Dreves, D.H. Gent, D.G. James, R.R. Martin, U. Chambers and P.A. Skinkis (2007)
Relationship between rust mites Calepitrimerus vitis (Nalepa), bud mites Colomerus vitis (Pagenstecher) (Acari: Eriophyidae) and short shoot syndrome in Oregon vineyards

Plant Disease (2007) 91, p. 468 (Gent et al.)
D.H. Gent, R.R. Martin and C.M. Ocamb (2007)
First report of Iris yellow spot virus on onion and leek in Western Oregon

Plant Disease (2007) 91, 1002-1012
David H. Gent, William W. Turechek and Walter F. Mahaffee (2007)
Sequential sampling for estimation and classification of the incidence of hop powdery mildew I: Leaf sampling

Plant Disease (2007) 91, 1013-1020
David H. Gent, William W. Turechek and Walter F. Mahaffee (2007)
Sequential sampling for estimation and classification of the incidence of hop powdery mildew II: Cone sampling

Plant Disease (2006) 90, 1468-1480
David H. Gent, Lindsey J. du Toit, Scott F. Fichtner, S. Krishna Mohan, Hanu R. Pappu and Howard F. Schwartz (2006)
Iris yellow spot virus: An emerging threat to onion bulb and seed production

Plant Disease (2006) 90, 1433-1440
David H. Gent, Walter F. Mahaffee and William W. Turechek (2006)
Spatial heterogeneity of the incidence of powdery mildew on hop cones

Plant Disease (2005) 89, 631-639
David H. Gent and Howard F. Schwartz (2005)
Management of Xanthomonas leaf blight of onion with a plant activator, biological control agents, and copper bactericides

Phytopathology (2005) 95, 918-925
David H. Gent, Abdulwahid Al-Saadi, Dean W. Gabriel, Frank J. Louws, Carol A. Ishimaru and Howard F. Schwartz (2005)
Pathogenic and genetic relatedness among Xanthomonas axonopodis pv. allii and other pathovars of X. axonopodis

Plant Disease (2005) 89, 507-514
David H. Gent, Jillian M. Lang, Michael E. Bartolo and Howard F. Schwartz (2005)
Inoculum sources and survival of Xanthomonas axonopodis pv. allii in Colorado

Plant Disease (2005) 89, 558-564
David H. Gent, Jillian M. Lang and Howard F. Schwartz (2005)
Epiphytic survival of Xanthomonas axonopodis pv. allii and X. axonopodis pv. phaseoli on leguminous hosts and onion

Phytopathology (2004) 94, 184-195
David H. Gent, Howard F. Schwartz, Carol A. Ishimaru, Frank J. Louws, Robert A. Cramer and Christopher B. Lawrence (2004)
Polyphasic characterization of Xanthomonas strains from onion

Plant Disease (2004) 88, 446-452
David H. Gent, Howard F. Schwartz and Rajiv Khosla (2004)
Distribution and incidence of Iris yellow spot virus in Colorado and its relation to onion plant population and yield

Plant Disease (2003) 87, 11-14
Howard F. Schwartz, Kristen L. Otto and David H. Gent (2003)
Relation of temperature and rainfall to development of Xanthomonas and Pantoea leaf blights of onion in Colorado

Plant Disease (2003) 87, 78-84
David H. Gent and Howard F. Schwartz (2003)
Validation of potato early blight disease forecast models for Colorado using various sources of meteorological data

Plant Disease (2003) 87, 591-597
David H. Gent, Howard F. Schwartz and Scott J. Nissen (2003)
Effect of commercial adjuvants on vegetable crop fungicide coverage, absorption, and efficacy

Plant Disease (2002) 86, p. 560 (Schwartz et al.)
H.F. Schwartz, W.M. Brown Jr., T. Blunt and D.H. Gent (2002)
Iris yellow spot virus on onion in Colorado