Dennis A. Johnson
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Publications of Dennis A. Johnson (47 listed):
PLoS ONE (2019) 14 (2 - e0211508)
David Linnard Wheeler, Jeness Scott, Jeremiah Kam Sung Dung and Dennis Allen Johnson (2019)
Evidence of a trans-kingdom plant disease complex between a fungus and plant-parasitic nematodes
New Phytologist (2019) 222, 497-510
David Linnard Wheeler, Jeremiah Kam Sung Dung and Dennis Allen Johnson (2019)
From pathogen to endophyte: an endophytic population of Verticillium dahliae evolved from a sympatric pathogenic population
Phytopathology (2019) 109, 780-786
David Linnard Wheeler and Dennis Allen Johnson (2019)
Does coinoculation with different Verticillium dahliae genotypes affect the host or fungus?
Plant Disease (2019) 103, 3150-3153
David Linnard Wheeler and Dennis A. Johnson (2019)
Verticillium isaacii is a pathogen and endophyte of potato and sunflower in the Columbia Basin of Washington
PLoS ONE (2016) 11 (11 - e0165690)
Zachariah R. Hansen, Kathryne L. Everts, William E. Fry, Amanda J. Gevens, Niklaus J. Grünwald, Beth K. Gugino, Dennis A. Johnson, Steven B. Johnson, Howard S. Judelson, Brian J. Knaus, Margaret T. McGrath, Kevin L. Myers, Jean B. Ristaino, Pamela D. Roberts, Gary A. Secor and Christine D. Smart (2016)
Genetic variation within clonal lineages of Phytophthora infestans revealed through genotyping-by-sequencing, and implications for late blight epidemiology
Plant Disease (2016) 100, 465-472
Lydia S. Tymon, Tobin L. Peever and Dennis A. Johnson (2016)
Identification and enumeration of small-spored Alternaria species associated with potato in the U.S. Northwest
Plant Disease (2016) 100, 797-801
Lydia S. Tymon, Thomas F. Cummings and Dennis A. Johnson (2016)
Pathogenicity and aggressiveness of three Alternaria spp. on potato foliage in the U.S. Northwest
Plant Disease (2015) 99, 257-262
Dennis A. Johnson and Thomas F. Cummings (2015)
Effect of extended crop rotations on incidence of black dot, silver scurf, and Verticillium wilt of potato
Plant Disease (2015) 99, 683-690
Dennis A. Johnson, Thomas F. Cummings and Alan D. Fox (2015)
Accuracy of rain forecasts for use in scheduling late blight management tactics in the Columbia Basin of Washington and Oregon
Plant Disease (2015) 99, 1396-1403
Dennis A. Johnson and Thomas F. Cummings (2015)
Effect of powdery scab root galls on yield of potato
Plant Disease (2014) 98, 62-66
Dennis A. Johnson (2014)
Slow-rusting resistance in native spearmint to Puccinia menthae
Plant Disease (2014) 98, 1648-1653
Lydia Tymon and Dennis A. Johnson (2014)
Fungicide resistance of two species of Alternaria from potato in the Columbia Basin of Washington
Phytopathology (2013) 103, 55-63
Jeremiah K.S. Dung, Philip B. Hamm, Jordan E. Eggers and Dennis A. Johnson (2013)
Incidence and impact of Verticillium dahliae in soil associated with certified potato seed lots
Plant Disease (2013) 97, 183-188
Dennis A. Johnson and Thomas F. Cummings (2013)
A plant stem inoculation assay for assessing transmission of Phytophthora infestans from potato seed tubers to emerged shoots
Phytopathology (2013) 103, 445-459
Jeremiah K.S. Dung, Tobin L. Peever and Dennis A. Johnson (2013)
Verticillium dahliae populations from mint and potato are genetically divergent with predominant haplotypes
Canadian Journal of Plant Pathology (2013) 35, 469-475
Dennis A. Johnson and Thomas F. Cummings (2013)
Effects of temperature on rust development on mint infected with strains of Puccinia menthae
Plant Disease (2012) 96, 1179-1184
Jeremiah K.S. Dung, Jason T. Ingram, Thomas F. Cummings and Dennis A. Johnson (2012)
Impact of seed lot infection on the development of black dot and Verticillium wilt of potato in Washington
Plant Disease (2012) 96, 997-1000
Dennis A. Johnson (2012)
Stability of slow-rusting resistance to Puccinia asparagi and managing rust in asparagus
Plant Disease (2012) 96, 379-383
Jeremiah K.S. Dung and Dennis A. Johnson (2012)
Roles of infected seed tubers and soilborne inoculum on Verticillium wilt of 'Russet Burbank' potato
Plant Disease (2011) 95, 1147-1152
Jeremiah K.S. Dung, Lindsey J. du Toit and Dennis A. Johnson (2011)
Verticillium wilt of skullcap and potential for pathogen dissemination via seeds and stems
Plant Disease (2011) 95, 285-291
Dennis A. Johnson, Jeremiah K.S. Dung, Thomas F. Cummings and Brenda K. Schroeder (2011)
Development and suppression of aerial stem rot in commercial potato fields
Plant Disease (2010) 94, 1255-1260
Jeremiah K.S. Dung, Brenda K. Schroeder and Dennis A. Johnson (2010)
Evaluation of Verticillium wilt resistance in Mentha arvensis and M. longifolia genotypes
Canadian Journal of Plant Pathology (2010) 32, 58-67
Dennis A. Johnson and Jeremiah K.S. Dung (2010)
Verticillium wilt of potato - the pathogen, disease and management
Plant Disease (2010) 94, 18-23
Dennis A. Johnson (2010)
Transmission of Phytophthora infestans from infected potato seed tubers to emerged shoots
Plant Disease (2009) 93, 272-280
Dennis A. Johnson, Thomas F. Cummings, Rita Abi Ghanem and J. Richard Alldredge (2009)
Association of solar irradiance and days of precipitation with incidence of potato late blight in the semiarid environment of the Columbia Basin
Plant Disease (2009) 93, 1116-1122
Nadav Nitzan, Marc A. Evans, Tom F. Cummings, Dennis A. Johnson, L. Batchelor, Chris Olsen, L.J. Olsen, Kathleen G. Haynes and Charles R. Brown (2009)
Field resistance to potato stem colonization by the black dot pathogen Colletotrichum coccodes
Plant Disease (2009) 93, 940-946
Dennis A. Johnson and Thomas F. Cummings (2009)
Latent Infection of potato seed tubers by Phytophthora infestans during long-term cold storage
Plant Disease (2008) 92, 1643-1649
Nadav Nitzan, Tom F. Cummings, Dennis A. Johnson, Jeff S. Miller, Dallas L. Batchelor, Chris Olsen, Richard A. Quick and Charles R. Brown (2008)
Resistance to root galling caused by the powdery scab pathogen Spongospora subterranea in potato
Plant Disease (2008) 92, 1497-1502
Nadav Nitzan, Tom F. Cummings and Dennis A. Johnson (2008)
Disease potential of soil- and tuberborne inocula of Colletotrichum coccodes and black dot severity on potato
Plant Disease (2007) 91, 1327-1336
W. R. Stevenson, R.V. James, Debra Ann Inglis, Dennis A. Johnson, R. Thomas Schotzko and R.E. Thornton (2007)
Fungicide spray programs for defender, a new potato cultivar with resistance to late blight and early blight
Plant Disease (2007) 91, 315-320
Brad Geary, Dennis A. Johnson, Philip B. Hamm, Steve James and Ken A. Rykbost (2007)
Potato silver scurf affected by tuber seed treatments and locations, and occurrence of fungicide resistant isolates of Helminthosporium solani
Plant Disease (2006) 90, 755-758
Dennis A. Johnson and Zahi K. Atallah (2006)
Timing fungicide applications for managing sclerotinia stem rot of potato
Phytopathology (2006) 96, 1097-1107
Larry J. Heilmann, Nadav Nitzan, Dennis A. Johnson, Julie S. Pasche, Curt Doetkott and Neil C. Gudmestad (2006)
Genetic variability in the potato pathogen Colletotrichum coccodes as determined by amplified fragment length polymorphism and vegetative compatibility group analyses
Plant Disease (2006) 90, 789-797
Dennis A. Johnson, Hao Zhang and J. Richard Alldredge (2006)
Spatial pattern of verticillium wilt in commercial mint fields
Plant Disease (2004) 88, 1153-1159
Dennis A. Johnson, Debra A. Inglis and Jeffrey S. Miller (2004)
Control of potato tuber rots caused by oomycetes with foliar applications of phosphorous acid
Phytopathology (2004) 94, 380-387
Lyndon D. Porter and Dennis A. Johnson (2004)
Survival of Phytophthora infestans in surface water
Plant Disease (2003) 87, 977-982
Dennis A. Johnson, Mel Martin and Thomas F. Cummings (2003)
Effect of chemical defoliation, irrigation water, and distance from the pivot on late blight tuber rot in center-pivot irrigated potatoes in the Columbia basin
Phytopathology (2003) 93, 805-812
Dennis A. Johnson, J. Richard Alldredge, Philip B. Hamm and Bruce E. Frazier (2003)
Aerial photography used for spatial pattern analysis of late blight infection in irrigated potato circles
Plant Disease (2001) 85, 297-302
L.I. Douhan and D.A. Johnson (2001)
Vegetative compatibility and pathogenicity of Verticillium dahliae from spearmint and peppermint
Plant Disease (2001) 85, 1189-1192
Dennis A. Johnson and Gerald S. Santo (2001)
Development of wilt in mint in response to infection by two pathotypes of Verticillium dahliae and co-infection by Pratylenchus penetrans
Plant Disease (2000) 84, 1116-1120
Dennis A. Johnson, Tom F. Cummings and Brad Geary (2000)
Postinfection activity of selected late blight fungicides
Plant Disease (2000) 84, 235-238
Dennis A. Johnson and Tom F. Cummings (2000)
Evaluation of mint mutants, hybrids, and fertile clones for resistance to Verticillium dahliae
Plant Disease (2000) 84, 399-402
Dennis A. Johnson, Thomas F. Cummings and Philip B. Hamm (2000)
Cost of fungicides used to manage potato late blight in the Columbia Basin: 1996 to 1998
Plant Disease (1999) 83, 512-515
Brad Geary, Dennis A. Johnson, Philip B. Hamm and Thomas F. Cummings (1999)
Fungicide application for late blight management: a boom attached to a center pivot irrigation system
Plant Disease (1998) 82, 642-645
Dennis A. Johnson, J. Richard Alldredge and Philip B. Hamm (1998)
Expansion of potato late blight forecasting models for the Columbia Basin of Washington and Oregon
Phytopathology (1997) 87, 656-660
Jeffrey S. Miller, Philip B. Hamm and Dennis A. Johnson (1997)
Characterization of the Phytophthora infestans population in the Columbia Basin of Oregon and Washington from 1992 to 1995
Plant Disease (1997) 81, 1199-1202
Dennis A. Johnson, Randall C. Rowe and Thomas F. Cummings (1997)
Incidence of Colletotrichum coccodes in certified potato seed tubers planted in Washington State
