Steven T. Koike

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Publications of Steven T. Koike (173 listed):

Plant Disease (2020) 104, 82-93
Nikhilesh Dhar, Bullo Erena Mamo, Krishna V. Subbarao, Steven T. Koike, Alan Fox, Amy Anchieta and Steven J. Klosterman (2020)
Measurements of aerial spore load by qPCR facilitates lettuce downy mildew risk advisement

Plant Disease (2019) 103, 1006-1013
Alyssa Burkhardt, Peter M. Henry, Steven T. Koike, Thomas R. Gordon and Frank Martin (2019)
Detection of Fusarium oxysporum f. sp. fragariae from infected strawberry plants

Plant Disease (2019) 103, p. 1435 (Koike et al.)
S.T. Koike, H. Stanghellini, S.J. Mauzey, A. Burkhardt and M.S. Stanghellini (2019)
First report of Phytophthora root and bulb rot caused by Phytophthora cryptogea on shallot in the United States

Plant Disease (2018) 102, p. 1671 (Tsuchida et al.)
C.T. Tsuchida, S.J. Mauzey, R. Hatlen, T.D. Miles and S.T. Koike (2018)
First report of Pythium root rot caused by Pythium mastophorum on parsley in the United States

Phytopathology (2018) 108, 1386-1394
Alyssa Burkhardt, Marina L. Ramon, Brett Smith, Steven T. Koike and Frank Martin (2018)
Development of molecular methods to detect Macrophomina phaseolina from strawberry plants and soil

Plant Disease (2018) 102, 613-618
Chunda Feng, Katsunori Saito, Bo Liu, Aurora Manley, Katherine Kammeijer, Stacy J. Mauzey, Steven Koike and James C. Correll (2018)
New races and novel strains of the spinach downy mildew pathogen Peronospora effusa

Phytopathology (2017) 107, 50-58
R.A. Choudhury, S.T. Koike, A.D. Fox, A. Anchieta, K.V. Subbarao, S.J. Klosterman and N. McRoberts (2017)
Spatiotemporal patterns in the airborne dispersal of spinach downy mildew

Plant Disease (2017) 101, p. 504 (Koike et al.)
S.T. Koike, E.I. Alger, L. Ramos Sepulveda and C.T. Bull (2017)
First report of bacterial leaf spot caused by Pseudomonas syringae pv. tomato on kale in California

Plant Disease (2017) 101, 550-556
P.M. Henry, S.C. Kirkpatrick, C.M. Islas, A.M. Pastrana, J.A. Yoshisato, S.T. Koike, O. Daugovish and T.R. Gordon (2017)
The population of Fusarium oxysporum f. sp. fragariae, cause of Fusarium wilt of strawberry, in California

Plant Disease (2017) 101, p. 2148 (Koike et al.)
S.T. Koike, O. Daugovish, F.N. Martin and M.L. Ramon (2017)
Crown and root rot caused by Rhizoctonia solani on cilantro in California

Plant Disease (2016) 100, p. 1783 (Koike et al.)
S.T. Koike, L.J. Bettiga, T.T. Nguyen and W.D. Gubler (2016)
First report of Cylindrocladiella lageniformis and C. peruviana as grapevine pathogens in California

Plant Disease (2016) 100, 1397-1404
E.A. Newberry, T.M. Jardini, I. Rubio, P.D. Roberts, B. Babu, S.T. Koike, H. Bouzar, E.M. Goss, J.B. Jones, C.T. Bull and M.L. Paret (2016)
Angular leaf spot of cucurbits is associated with genetically diverse Pseudomonas syringae strains

Plant Disease (2016) 100, 59-65
Sridhara G. Kunjeti, Amy Anchieta, Krishna V. Subbarao, Steven T. Koike and Steven J. Klosterman (2016)
Plasmolysis and vital staining reveal viable oospores of Peronospora effusa in spinach seed lots

American Journal of Plant Sciences (2016) 7, 1600-1611
Ainong Shi, Beiquan Mou, Jim Correll, Steven T. Koike, Dennis Motes, Jun Qin, Yuejin Weng and Wei Yang (2016)
Association analysis and identification of SNP markers for Stemphylium leaf spot (Stemphylium botryosum f. sp. spinacia) resistance in spinach (Spinacia oleracea)

Phytopathology (2016) 106, 1311-1318
R.A. Choudhury, S.T. Koike, A.D. Fox, A. Anchieta, K.V. Subbarao, S.J. Klosterman and N. McRoberts (2016)
Season-long dynamics of spinach downy mildew determined by spore trapping and disease incidence

Phytopathology (2016) 106, 1426-1437
Sridhara G. Kunjeti, Amy Anchieta, Frank N. Martin, Young-Joon Choi, Marco Thines, Richard W. Michelmore, Steven T. Koike, Cayla Tsuchida, Walt Mahaffee, Krishna V. Subbarao and Steven J. Klosterman (2016)
Detection and quantification of Bremia lactucae by spore trapping and quantitative PCR

Plant Disease (2016) 100, p. 857 (Koike et al.)
S.T. Koike, A. Baameur, J.Z. Groenewald and P.W. Crous (2016)
Cercospora leaf spot caused by Cercospora armoraciae on watercress in California

Plant Disease (2015) 99, 933-938
Suraj Gurung, Dylan P.G. Short, Xiaoping Hu, German V. Sandoya, Ryan J. Hayes, Steven T. Koike and Krishna V. Subbarao (2015)
Host range of Verticillium isaacii and Verticillium klebahnii from artichoke, spinach, and lettuce

Plant Disease (2015) 99, p. 555 (Koike et al.)
S.T. Koike, C. Feng and J.C. Correll (2015)
Powdery mildew, caused by Leveillula taurica, on spinach in California

Phytopathology (2015) 105, 638-645
Dylan P.G. Short, German Sandoya, Gary E. Vallad, Steven T. Koike, Chang-Lin Xiao, Bo-Ming Wu, Suraj Gurung, Ryan J. Hayes and Krishna V. Subbarao (2015)
Dynamics of Verticillium species microsclerotia in field soils in response to fumigation, cropping patterns, and flooding

Plant Disease (2015) 99, p. 1281 (Koike et al.)
S.T. Koike, A. Erickson, B. McGuire and W.D. Gubler (2015)
First report of powdery mildew caused by Erysiphe heraclei on fennel in California

Plant Disease (2015) 99, p. 1645 (Koike et al.)
S.T. Koike, D.V. Tompkins, F. Martin and M.L. Ramon (2015)
First report of Pythium root rot of fennel in California caused by Pythium sulcatum

Plant Disease (2015) 99, p. 1864 (Koike et al.)
S.T. Koike, O. Daugovish, S.C. Kirkpatrick, P.M. Henry and T.R. Gordon (2015)
First report of crown and root rot of leek caused by Fusarium avenaceum in California

Annual Review of Phytopathology (2015) 53, 157-180
Carolee T. Bull and Steven T. Koike (2015)
Practical benefits of knowing the enemy: Modern molecular tools for diagnosing the etiology of bacterial diseases and understanding the taxonomy and diversity of plant-pathogenic bacteria

Phytopathology (2015) 105, 80-90
D.P.G. Short, S. Gurung, S.T. Koike, S.J. Klosterman and K.V. Subbarao (2015)
Frequency of Verticillium species in commercial spinach fields and transmission of V. dahliae from spinach to subsequent lettuce crops

Plant Disease (2014) 98, 1050-1059
Yen-Wen Kuo, Robert L. Gilbertson, Tom Turini, Eric B. Brennan, Richard F. Smith and Steven T. Koike (2014)
Characterization and epidemiology of outbreaks of Impatiens necrotic spot virus on lettuce in coastal California

Plant Disease (2014) 98, p. 1151 (Koike et al.)
S.T. Koike, M.P. Bolda and C.T. Bull (2014)
Pseudomonas blight caused by Pseudomonas syringae on raspberry in California

Plant Disease (2014) 98, p. 1280 (Koike et al.)
S.T. Koike, S. Rooney-Latham and A.F. Wright (2014)
First report of stem blight of blueberry in California caused by Neofusicoccum parvum

Plant Disease (2014) 98, 145-152
Chunda Feng, James C. Correll, Katherine E. Kammeijer and Steven T. Koike (2014)
Identification of new races and deviating strains of the spinach downy mildew pathogen Peronospora farinosa f. sp. spinaciae

Phytopathology (2014) 104, 1349-1359
Steven J. Klosterman, Amy Anchieta, Neil McRoberts, Steven T. Koike, Krishna V. Subbarao, Hermann Voglmayr, Young-Joon Choi, Marco Thines and Frank N. Martin (2014)
Coupling spore traps and quantitative PCR assays for detection of the downy mildew pathogens of spinach (Peronospora effusa) and beet (P. schachtii)

Plant Disease (2014) 98, p. 849 (Koike)
S.T. Koike (2014)
First report of southern blight of Swiss chard (Beta vulgaris subsp. cicla) caused by Sclerotium rolfsii in California

Plant Disease (2013) 97, 315-322
Steven T. Koike, Nichole O'Neill, Julie Wolf, Peter Van Berkum and Oleg Daugovish (2013)
Stemphylium leaf spot of parsley in California caused by Stemphylium vesicarium

Plant Disease (2013) 97, p. 1250 (Koike)
S.T. Koike (2013)
First report of white mold caused by Sclerotinia minor on Mexican sunflower in California

Plant Disease (2012) 96, p. 1383 (Koike et al.)
S.T. Koike, A. Baameur, K. Maruthachalam and K.V. Subbarao (2012)
Verticillium wilt of spineless safflower caused by Verticillium dahliae in California

Plant Disease (2012) 96, p. 1820 (Zacaroni et al.)
A.B. Zacaroni, S.T. Koike, R.M. de Souza and C.T. Bull (2012)
Bacterial leaf spot of radicchio (Cichorium intybus) is caused by Xanthomonas hortorum

Plant Disease (2012) 96, p. 145 (Koike et al.)
S.T. Koike, T.R. Gordon and S.C. Kirkpatrick (2012)
First report of Fusarium stem and crown rot of fennel in Arizona caused by Fusarium avenaceum

Phytopathology (2012) 102, 331-343
Guillaume J. Bilodeau, Steven T. Koike, Pedro Uribe and Frank N. Martin (2012)
Development of an assay for rapid detection and quantification of Verticillium dahliae in soil

Plant Disease (2012) 96, p. 1822 (Swain et al.)
S.V. Swain, S.T. Koike, T.J. Michailides, C. Feng and J.C. Correll (2012)
First report of twig canker on willow caused by Colletotrichum acutatum in California

Plant Disease (2012) 96, p. 291 (Koike et al.)
S.T. Koike and S. Rooney-Latham (2012)
First report of Embellisia allii causing skin blotch and bulb canker on garlic in California

Phytopathology (2012) 102, 443-451
Dechassa Duressa, Gilda Rauscher, Steven T. Koike, Beiquan Mou, Ryan J. Hayes, Karunakaran Maruthachalam, Krishna V. Subbarao and Steven J. Klosterman (2012)
A real-time PCR assay for detection and quantification of Verticillium dahliae in spinach seed

Plant Disease (2012) 96, 612-617
Steven T. Koike, Hsing-Yeh Liu, John Sears, Tongyan Tian, Oleg Daugovish and Surendra Dara (2012)
Distribution, cultivar susceptibility, and epidemiology of Apium virus Y on celery in coastal California

Plant Disease (2012) 96, p. 285 (Jardini et al.)
T.M. Jardini, S.T. Koike and C.T. Bull (2012)
First report of bacterial streak of fennel (Foeniculum vulgare) in California caused by Pseudomonas syringae pv. apii

Plant Disease (2012) 96, p. 908 (Koike et al.)
S.T. Koike and O. Daugovish (2012)
Gray mold of green shiso (Perilla frutescens), caused by Botrytis cinerea, in California

Plant Disease (2012) 96, p. 296 (Liu et al.)
H.-Y. Liu, S.T. Koike, D. Xu and R. Li (2012)
First report of Turnip mosaic virus in tomatillo (Physalis philadelphica) in California

Plant Disease (2011) 95, p. 876 (Koike et al.)
S.T. Koike, M.J. Sullivan, C. Southwick, C. Feng and J.C. Correll (2011)
Characterization of white rust of perennial pepperweed caused by Albugo candida in California

European Journal of Plant Pathology (2011) 129, 193-205
J.C. Correll, B.H. Bluhm, C. Feng, K. Lamour, L.J. du Toit and S.T. Koike (2011)
Spinach: better management of downy mildew and white rust through genomics

Phytopathology (2011) 101, 847-858
Carolee T. Bull, Christopher R. Clarke, Rongman Cai, Boris A. Vinatzer, Teresa M. Jardini and Steven T. Koike (2011)
Multilocus sequence typing of Pseudomonas syringae sensu lato confirms previously described genomospecies and permits rapid identification of P. syringae pv. coriandricola and P. syringae pv. apii causing bacterial leaf spot on parsley

Plant Disease (2011) 95, p. 71 (Mauzey et al.)
S.J. Mauzey, S.T. Koike and C.T. Bull (2011)
First report of bacterial blight of cabbage (Brassica oleracea var. capitata) caused by Pseudomonas cannabina pv. alisalensis in California

Phytopathology (2011) 101, 340-348
B.M. Wu, S.T. Koike and K.V. Subbarao (2011)
Impact of consumer-driven changes to crop production practices on lettuce drop caused by Sclerotinia sclerotiorum and S. minor

Phytopathology (2011) 101, 358-366
P. Chitrampalam, B.M. Wu, S.T. Koike and K.V. Subbarao (2011)
Interactions between Coniothyrium minitans and Sclerotinia minor affect biocontrol efficacy of C. minitans

Phytopathology (2011) 101, 523-534
S.M.C. Njoroge, G.E. Vallad, S.-Y. Park, S. Kang, S.T. Koike, M. Bolda, P. Burman, W. Polonik and K.V. Subbarao (2011)
Phenological and phytochemical changes correlate with differential interactions of Verticillium dahliae with broccoli and cauliflower

Plant Disease (2011) 95, p. 768 (Koike)
S.T. Koike (2011)
Fusarium crown and root rot of tarragon in California caused by Fusarium solani

Plant Disease (2010) 94, p. 125 (Koike et al.)
S.T. Koike, T. Tian and H.-Y. Liu (2010)
First report of Tobacco rattle virus in spinach in California

Plant Disease (2010) 94, 13-17
J.C. Scott, T.R. Gordon, D.V. Shaw and S.T. Koike (2010)
Effect of temperature on severity of Fusarium wilt of lettuce caused by Fusarium oxysporum f. sp. lactucae

Plant Disease (2010) 94, p. 131 (Koike et al.)
S.T. Koike and Frank N. Martin (2010)
First report of Phytophthora root rot caused by Phytophthora cryptogea on spinach in California

Plant Disease (2010) 94, p. 640 (Liu et al.)
H.-Y. Liu, B. Mou, K. Richardson and S.T. Koike (2010)
First report of Beet necrotic yellow vein virus infecting spinach in California

Plant Disease (2010) 94, p. 1375 (Bull et al.)
C.T. Bull, S.J. Mauzey and S.T. Koike (2010)
First report of bacterial blight of Brussels sprouts (Brassica oleracea var. gemmifera) caused by Pseudomonas cannabina pv. alisalensis in California

Plant Disease (2009) 93, 371-376
S.A. Tjosvold, D.L. Chambers, E.J. Fichtner, S.T. Koike and S.R. Mori (2009)
Disease risk of potting media infested with Phytophthora ramorum under nursery conditions

Plant Disease (2009) 93, p. 844 (Koike et al.)
S.T. Koike, L.J. du Toit and M.L. Derie (2009)
A leaf blight of chive caused by Botrytis byssoidea in California

Plant Disease (2009) 93, p. 1350 (Bull et al.)
C.T. Bull, A.I. Huerta and S.T. Koike (2009)
First report of blossom blight of strawberry (Fragaria × ananassa) caused by Pseudomonas marginalis

Plant Disease (2009) 93, p. 1077 (Koike et al.)
S.T. Koike, S.C. Kirkpatrick and T.R. Gordon (2009)
Fusarium wilt of strawberry caused by Fusarium oxysporum in California

Plant Disease (2009) 93, 519-527
Samuel M.C. Njoroge, Zahangir Kabir, Frank N. Martin, Steven T. Koike and Krishna V. Subbarao (2009)
Comparison of crop rotation for Verticillium wilt management and effect on Pythium species in conventional and organic strawberry production

Plant Disease (2009) 93, p. 1351 (Koike et al.)
S.T. Koike, C.E. Fake and J.C. Correll (2009)
Anthracnose of sunflower sprouts caused by Colletotrichum acutatum in California

Plant Disease (2009) 93, 1019-1027
Tiffany A. Bensen, Richard F. Smith, Krishna V. Subbarao, Steven T. Koike, Steven A. Fennimore and Shachar Shem-Tov (2009)
Mustard and other cover crop effects vary on lettuce drop caused by Sclerotinia minor and on weeds

Plant Disease (2008) 92, p. 1254 (Tian et al.)
T. Tian, H.-Y. Liu and S.T. Koike (2008)
First report of Apium virus Y on cilantro, celery, and parsley in California

Plant Disease (2008) 92, p. 1253 (Koike)
S.T. Koike (2008)
Crown rot of strawberry caused by Macrophomina phaseolina in California

HortScience (2008) 43, 1706-1710
Beiquan Mou, Steven T. Koike and Lindsey J. du Toit (2008)
Screening for resistance to leaf spot diseases of spinach

Plant Disease (2008) 92, p. 1470 (Koike)
S.T. Koike (2008)
Downy mildew caused by Peronospora valerianellae on corn-salad (Valerianella locusta) in California

Plant Disease (2008) 92, p. 1248 (Koike et al.)
S.T. Koike, Y.-W. Kuo, M.R. Rojas and R.L. Gilbertson (2008)
First report of Impatiens necrotic spot virus infecting lettuce in California

Plant Disease (2008) 92, 1566-1573
S.A. Tjosvold, D.L. Chambers, S.T. Koike and S.R. Mori (2008)
Disease on nursery stock as affected by environmental factors and seasonal inoculum levels of Phytophthora ramorum in stream water used for irrigation

Plant Disease (2008) 92, p. 1368 (Koike)
S.T. Koike (2008)
Black root rot caused by Thielaviopsis basicola on lettuce in California

Plant Disease (2007) 91, p. 329 (Koike)
S.T. Koike (2007)
Powdery mildew, caused by Leveillula taurica, on matilija poppy in California

Plant Disease (2007) 91, p. 1205 (Tomlinson et al.)
A.N. Tomlinson, J.C. Correll, S.T. Koike and K. Kammeijer (2007)
First report of race 8 of downy mildew, caused by Peronospora farinosa f. sp. spinaciae, of spinach in the United States

Plant Disease (2007) 91, p. 326 (Koike et al.)
S.T. Koike and O.E. Ochoa (2007)
Downy mildew caused by Bremia lactucae on strawflower (Helichrysum bracteatum) in California

Plant Disease (2007) 91, 964-972
K.V. Subbarao, Z. Kabir, F.N. Martin and S.T. Koike (2007)
Management of soilborne diseases in strawberry using vegetable rotations

Plant Disease (2007) 91, p. 112 (Koike et al.)
S.T. Koike, K. Kammeijer, C.T. Bull and Doug O'Brien (2007)
First report of bacterial blight of rutabaga (Brassica napus var. napobrassica) caused by Pseudomonas syringae pv. alisalensis in California

Plant Disease (2007) 91, 1392-1396
B.M. Irish, J.C. Correll, S.T. Koike and T.E. Morelock (2007)
Three new races of the spinach downy mildew pathogen identified by a modified set of spinach differentials

Plant Disease (2006) 90, 1077-1084
N.A. Cintas, S.T. Koike, R.A. Bunch and C.T. Bull (2006)
Holdover inoculum of Pseudomonas syringae pv. alisalensis from broccoli raab causes disease in subsequent plantings

Plant Disease (2006) 90, p. 829 (Koike et al.)
S.T. Koike, O. Daugovish and J.A. Downer (2006)
Sclerotinia petiole and crown rot of celery caused by Sclerotinia minor in California

Plant Disease (2006) 90, 1268-1275
Steven T. Koike, Krishna V. Subbarao, Gerard J.M. Verkley, Diana Fogle and Timothy M. O'Neill (2006)
Phoma basal rot of romaine lettuce in California caused by Phoma exigua: Occurrence, characterization, and control

Canadian Journal of Plant Pathology (2006) 28, 63-70
R.F. Cerkauskas, S.T. Koike, H.R. Azad, D.T. Lowery and L.W. Stobbs (2006)
Diseases, pests, and abiotic disorders of greenhouse-grown water spinach (Ipomoea aquatica) in Ontario and California

Plant Disease (2006) 90, p. 245 (Koike et al.)
S.T. Koike and C.T. Bull (2006)
First report of bacterial leaf spot of Italian dandelion (Cichorium intybus) caused by a Pseudomonas syringae pathovar in California

Plant Disease (2006) 90, p. 1551 (Koike et al.)
S.T. Koike, K. Kammeijer, C.T. Bull and D. O'Brien (2006)
First report of bacterial blight of Romanesco cauliflower (Brassica oleracea var. botrytis) caused by Pseudomonas syringae pv. alisalensis in California

Plant Disease (2005) 89, p. 1013 (Koike et al.)
S.T. Koike, G.T. Browne, R.G. Bhat, R.C.M. Lee, S.A. Tjosvold and K. Buermeyer (2005)
Phytophthora leaf spot and foliar blight of Pieris japonica caused by Phytophthora citricola in California

Plant Disease (2005) 89, p. 1359 (Koike et al.)
S.T. Koike, M.E. Matheron and L.J. du Toit (2005)
First report of leaf spot of spinach caused by Stemphylium botryosum in Arizona

Plant Disease (2005) 89, p. 686 (Koike et al.)
S.T. Koike and G.S. Saenz (2005)
First report of powdery mildew caused by Golovinomyces orontii on corn-salad in the United States

Plant Disease (2005) 89, p. 1012 (Koike)
S.T. Koike (2005)
Southern blight of areca palm (Chrysalidocarpus lutescens) caused by Sclerotium rolfsii in California

Plant Disease (2005) 89, 317-324
Gary E. Vallad, Ravi G. Bhat, Steven T. Koike, Edward J. Ryder and Krishna V. Subbarao (2005)
Weedborne reservoirs and seed transmission of Verticillium dahliae in lettuce

Plant Disease (2005) 89, p. 1130 (Koike et al.)
S.T. Koike and T.R. Gordon (2005)
First report of Fusarium wilt of cilantro caused by Fusarium oxysporum in California

Plant Disease (2004) 88, p. 1163 (Koike et al.)
S.T. Koike, D. Fogle, S.A. Tjosvold and A.I. King (2004)
Downy mildew caused by Peronospora radii on marguerite daisy (Argyranthemum frutescens) in California

Plant Disease (2004) 88, 502-508
Sarah Brown, Steven T. Koike, Oswaldo E. Ochoa, Frank Laemmlen and Richard W. Michelmore (2004)
Insensitivity to the fungicide fosetyl-aluminum in California isolates of the lettuce downy mildew pathogen, Bremia lactucae

Plant Disease (2004) 88, p. 1163a (Koike et al.)
S.T. Koike and G.S. Saenz (2004)
First report of powdery mildew caused by Erysiphe heraclei on chervil in California

Plant Disease (2004) 88, p. 221 (Koike et al.)
S.T. Koike, R.F. Smith, P.W. Crous and J.Z. Groenewald (2004)
Leaf and stem spot caused by Ramularia sphaeroidea on purple and lana woollypod vetch (Vicia spp.) cover crops in California

Plant Disease (2004) 88, p. 909 (Wegulo et al.)
S.N. Wegulo, S.T. Koike, M. Vilchez and P. Santos (2004)
First report of downy mildew caused by Plasmopara obducens on Impatiens in California

Plant Disease (2004) 88, p. 425 (Koike et al.)
S.T. Koike and N. Shishkoff (2004)
First report of powdery mildew caused by Erysiphe viburni on Viburnum tinus in California

Plant Disease (2004) 88, p. 769 (Koike)
S.T. Koike (2004)
Southern blight of Jerusalem artichoke caused by Sclerotium rolfsii in California

Plant Disease (2004) 88, p. 1384 (Bull et al.)
C.T. Bull, P. Goldman and S.T. Koike (2004)
Bacterial blight on arugula, a new disease caused by Pseudomonas syringae pv. alisalensis in California

Phytopathology (2004) 94, 569-577
Y. Anikster, L.J. Szabo, T. Eilam, J. Manisterski, S.T. Koike and W.R. Bushnell (2004)
Morphology, life cycle biology, and DNA sequence analysis of rust fungi on garlic and chives from California

Plant Disease (2003) 87, p. 1397 (Koike et al.)
S.T. Koike, D.M. Henderson, C.T. Bull, P.H. Goldman and R.T. Lewellen (2003)
First report of bacterial leaf spot of Swiss chard caused by Pseudomonas syringae pv. aptata in California

Plant Disease (2003) 87, p. 752 (Hernandez et al.)
J.R. Hernández, S.T. Koike, H.J. Scheck and M.E. Palm Hernández (2003)
First report of the rust Miyagia pseudosphaeria on Sonchus oleraceus in the Americas

Plant Disease (2003) 87, p. 1265 (Matheron et al.)
M.E. Matheron and S.T. Koike (2003)
First report of fusarium wilt of lettuce caused by Fusarium oxysporum f. sp. lactucae in Arizona

Plant Disease (2003) 87, p. 601 (Koike et al.)
S.T. Koike, T.R. Gordon and B.J. Aegerter (2003)
Root and basal rot of leek caused by Fusarium culmorum in California

Plant Disease (2003) 87, 567-572
B.M. Irish, J.C. Correll, S.T. Koike, J. Schafer and T.E. Morelock (2003)
Identification and cultivar reaction to three new races of the spinach downy mildew pathogen from the United States and Europe

Plant Disease (2003) 87, p. 1264 (Koike)
S.T. Koike (2003)
Sclerotinia stem and crown rot of corn-salad caused by Sclerotinia minor in California

Plant Disease (2003) 87, p. 1540 (Tjosvold et al.)
S.A. Tjosvold and S.T. Koike (2003)
First report of downy mildew on Delphinium caused by Peronospora ficariae in California

Plant Disease (2003) 87, p. 203 (Koike et al.)
S.T. Koike, S.A. Tjosvold, J.Z. Groenewald and P.W. Crous (2003)
First report of a leaf spot disease of Bells-of-Ireland (Moluccella laevis) caused by Cercospora apii in California

HortScience (2003) 38, 246-250
Steven T. Koike, Miguel S. Vilchez and Albert O. Paulus (2003)
Fungal ecology of strawberry flower anthers and the saprobic role of Cladosporium cladosporioides in relation to fruit deformity problems

Plant Disease (2003) 87, p. 874 (Koike et al.)
S.T. Koike and H.R. Azad (2003)
First report of bacterial blight of four o'clock (Mirabilis jalapa), caused by Xanthomonas campestris in California

Plant Disease (2003) 87, 159-166
Jianjun Hao, Krishna V. Subbarao and Steven T. Koike (2003)
Effects of broccoli rotation on lettuce drop caused by Sclerotinia minor and on the population density of sclerotia in soil

Plant Disease (2003) 87, 789-797
R.G. Bhat, R.F. Smith, S.T. Koike, B.M. Wu and K.V. Subbarao (2003)
Characterization of Verticillium dahliae isolates and wilt epidemics of pepper

Plant Disease (2002) 86, p. 1176 (Tjosvold et al.)
S.A. Tjosvold and S.T. Koike (2002)
First occurrence of downy mildew on Digitalis purpurea (common foxglove), caused by Peronospora digitalidis, in California and the United States

Plant Disease (2002) 86, 992-998
N.A. Cintas, S.T. Koike and C.T. Bull (2002)
A new pathovar, Pseudomonas syringae pv. alisalensis pv. nov., proposed for the causal agent of bacterial blight of broccoli and broccoli raab

Plant Disease (2002) 86, p. 1274 (Maloney et al.)
P.E. Maloney, D.M. Rizzo, S.T. Koike, T.Y. Harnik and M. Garbelotto (2002)
First report of Phytophthora ramorum on coast redwood in California

Plant Disease (2002) 86, p. 187 (Koike et al.)
S.T. Koike and P. Beckman (2002)
Characterization of powdery mildew caused by Leveillula taurica on calla lily in California

Plant Disease (2002) 86, 205-214
D.M. Rizzo, M. Garbelotto, J.M. Davidson, G.W. Slaughter and S.T. Koike (2002)
Phytophthora ramorum as the cause of extensive mortality of Quercus spp. and Lithocarpus densiflorus in California

Plant Disease (2002) 86, p. 921 (Koike et al.)
S.T. Koike, H.R. Azad and D.C. Cooksey (2002)
First report of bacterial leaf spot of spinach caused by a Pseudomonas syringae pathovar in California

Plant Disease (2002) 86, p. 1274 (Davidson et al.)
J.M. Davidson, M. Garbelotto, S.T. Koike and D.M. Rizzo (2002)
First report of Phytophthora ramorum on Douglas-fir in California

Plant Pathology (2002) 51, 506-512
J.D. Barak, S.T. Koike and R.L. Gilbertson (2002)
Movement of Xanthomonas campestris pv. vitians in the stems of lettuce and seed contamination

Plant Disease (2001) 85, p. 1290 (Koike et al.)
S.T. Koike and R.F. Smith (2001)
First report of rust caused by Puccinia allii on wild garlic in California

Plant Disease (2001) 85, 895-900
B.M. Wu, K.V. Subbarao, A.H.C. van Bruggen and S.T. Koike (2001)
Comparison of three fungicide spray advisories for lettuce downy mildew

Plant Disease (2001) 85, p. 562 (Koike et al.)
S.T. Koike, M. Scholler, Arthur and Kriebel Herbaria (2001)
First occurrence of a rust fungus on English daisy (Bellis perennis) in North America

Phytopathology (2001) 91, 797-806
C. Obermeier, J.L. Sears, H.Y. Liu, K.O. Schlueter, E.J. Ryder, J.E. Duffus, S.T. Koike and G.C. Wisler (2001)
Characterization of distinct tombusviruses that cause diseases of lettuce and tomato in the western United States

Plant Disease (2001) 85, 1157-1159
Steven T. Koike, Hamid R. Azad and Donald A. Cooksey (2001)
Xanthomonas leaf spot of catnip: A new disease caused by a pathovar of Xanthomonas campestris

Plant Disease (2001) 85, p. 1207 (Cintas et al.)
N.A. Cintas, C.T. Bull, S.T. Koike and H. Bouzar (2001)
A new bacterial leaf spot disease of broccolini, caused by Pseudomonas syringae pathovar maculicola, in California

Plant Disease (2001) 85, 169-178
Jeri D. Barak, Steven T. Koike and Robert L. Gilbertson (2001)
Role of crop debris and weeds in the epidemiology of bacterial leaf spot of lettuce in California

Plant Disease (2001) 85, 126-130
Steven T. Koike, Diana M. Henderson and Edward E. Butler (2001)
Leaf spot disease of spinach in California caused by Stemphylium botryosum

Plant Disease (2001) 85, p. 335 (Scholler et al.)
M. Scholler, Arthur, Kriebel Herbaria and S.T. Koike (2001)
First occurrence of Puccinia lagenophorae causing rust disease on common groundsel in North America

Plant Disease (2001) 85, 585-591
Steven T. Koike, Richard F. Smith, R. Michael Davis, J. Joe Nunez and Ron E. Voss (2001)
Characterization and control of garlic rust in California

Plant Disease (2001) 85, 941-946
Conrad L. Schoch, Pedro W. Crous, Giancarlo Polizzi and Steven T. Koike (2001)
Female fertility and single nucleotide polymorphism comparisons in Cylindrocladium pauciramosum

Plant Disease (2001) 85, p. 448 (Koike et al.)
S.T. Koike and P.W. Crous (2001)
First report of a root and crown rot disease of myrtle in California caused by Cylindrocladium pauciramosum

Plant Disease (2001) 85, p. 802 (Koike et al.)
S.T. Koike and S.A. Tjosvold (2001)
A blight disease of dill in California caused by Itersonilia perplexans

Plant Disease (2000) 84, p. 705 (Saenz et al.)
G.S. Saenz, S.T. Koike and H.J. Scheck (2000)
First report of powdery mildew on Nandina domestica (Berberidaceae) in North America

Plant Disease (2000) 84, p. 370 (Koike et al.)
S.T. Koike, N.A. Cintas and C.T. Bull (2000)
Bacterial blight, a new disease of broccoli caused by Pseudomonas syringae in California

Plant Disease (2000) 84, p. 1048 (Saenz et al.)
G.S. Saenz, S.T. Koike and N. Shishkoff (2000)
First report of powdery mildew caused by Podosphaera (Sphaerotheca) fusca on Euryops pectinatus in North America

Plant Disease (2000) 84, p. 1342 (Koike)
S.T. Koike (2000)
Occurrence of stem rot of basil, caused by Sclerotinia sclerotiorum, in coastal California

Plant Disease (2000) 84, p. 103 (Koike)
S.T. Koike (2000)
Downy mildew of stock, caused by Peronospora parasitica, in California

Plant Disease (1999) 83, p. 399 (Koike et al.)
S.T. Koike and G.S. Saenz (1999)
Powdery mildew of spearmint caused by Erysiphe orontii in California

Plant Disease (1999) 83, p. 695 (Koike et al.)
S.T. Koike and K.V. Subbarao (1999)
Damping-off of Swiss chard, caused by Rhizoctonia solani, in California

Plant Disease (1999) 83, p. 877 (Scheck et al.)
H.J. Scheck and S.T. Koike (1999)
First occurrence of white rust of arugula, caused by Albugo candida

Plant Disease (1999) 83, p. 1070 (Koike et al.)
S.T. Koike and K.V. Subbarao (1999)
Leaf blight of endive and escarole, caused by Rhizoctonia solani, in California

Plant Disease (1999) 83, p. 694 (Koike et al.)
S.T. Koike, D.M. Henderson, S.A. Tjosvold and E.G. Simmons (1999)
Outbreak of leaf spot of saponaria caused by Alternaria saponariae in California

Plant Disease (1999) 83, p. 304 (Koike et al.)
S.T. Koike and R.H. Molinar (1999)
Rust disease on lemongrass in California

Plant Disease (1999) 83, 165-170
Steven T. Koike, Jeri D. Barak, Diana M. Henderson and Robert L. Gilbertson (1999)
Bacterial blight of leek: A new disease in California caused by Pseudomonas syringae

Plant Disease (1999) 83, 124-129
Krishna V. Subbarao, Judith C. Hubbard and Steven T. Koike (1999)
Evaluation of broccoli residue incorporation into field soil for Verticillium wilt control in cauliflower

Plant Disease (1999) 83, p. 1177 (Koike)
S.T. Koike (1999)
Stem and crown rot of chervil, caused by Sclerotinia sclerotiorum, in California

Plant Disease (1999) 83, p. 301 (Liu et al.)
H.-Y. Liu, J.L. Sears, C. Obermeier, G.C. Wisler, E.J. Ryder, J.E. Duffus and S.T. Koike (1999)
First report of Tomato bushy stunt virus isolated from lettuce

Plant Disease (1999) 83, p. 589 (Koike et al.)
S.T. Koike, D.M. Henderson, P.W. Crous, C.L. Schoch and S.A. Tjosvold (1999)
A new root and crown rot disease of heath in California caused by Cylindrocladium pauciramosum

Plant Disease (1998) 82, p. 832 (Gonzalez et al.)
T.G. Gonzalez, D.M. Henderson and S.T. Koike (1998)
First report of bell pepper (Capsicum annuum) as a host of Sclerotinia minor in California

Plant Disease (1998) 82, p. 448 (Koike et al.)
S.T. Koike and E.E. Butler (1998)
Leaf spot of radicchio caused by Alternaria cichorii in California

Plant Disease (1998) 82, p. 831 (Koike)
S.T. Koike (1998)
Severe outbreak of chocolate spot of fava bean, caused by Botrytis fabae, in California

Plant Disease (1998) 82, p. 447 (Koike et al.)
S.T. Koike and D.M. Henderson (1998)
Black root rot, caused by Thielaviopsis basicola, on tomato transplants in California

Plant Disease (1998) 82, p. 591 (Koike et al.)
S.T. Koike, P.A. Nolan, S.A. Tjosvold and K.L. Robb (1998)
First occurrence of downy mildew of statice, caused by Peronospora statices, in California and the rest of the United States

Plant Disease (1998) 82, p. 1172 (Koike et al.)
S.T. Koike, K.V. Subbarao, A.P. Roelfs, J.F. Hennen and S.A. Tjosvold (1998)
Rust disease of oregano and sweet marjoram in California

Plant Disease (1998) 82, 727-731
Steven T. Koike, Diana M. Henderson, Hamid R. Azad, Donald A. Cooksey and E.L. Little (1998)
Bacterial blight of broccoli raab: A new disease caused by a pathovar of Pseudomonas syringae

Plant Disease (1998) 82, p. 128 (Koike et al.)
S.T. Koike and G.S. Saenz (1998)
First report of powdery mildew, caused by an Oidium sp., on poinsettia in California

Plant Disease (1998) 82, p. 127 (Saenz et al.)
G.S. Saenz and S.T. Koike (1998)
First report of powdery mildew caused by Oidium araliacearum on ivy in California

Plant Disease (1998) 82, p. 710 (Koike et al.)
S.T. Koike and D.H. Henderson (1998)
Purple blotch, caused by Alternaria porri, on leek transplants in California

Plant Disease (1998) 82, p. 1063 (Koike)
S.T. Koike (1998)
Downy mildew of arugula, caused by Peronospora parasitica, in California

Phytopathology (1998) 88, 1046-1055
C.L. Xiao, K.V. Subbarao, K.F. Schulbach and S.T. Koike (1998)
Effects of crop rotation and irrigation on Verticillium dahliae microsclerotia in soil and wilt in cauliflower

Plant Disease (1998) 82, p. 711 (Koike et al.)
S.T. Koike and R.F. Smith (1998)
First report of powdery mildew caused by Sphaerotheca fusca on tomatillo in California

Plant Disease (1997) 81, 148-153
J.C. Hubbard, K.V. Subbarao and S.T. Koike (1997)
Development and significance of dicarboximide resistance in Sclerotinia minor Isolates from commercial lettuce fields in California

Plant Disease (1997) 81, 641-646
Francisco Murilo Zerbini, Steven T. Koike and Robert L. Gilbertson (1997)
Gazania spp.: A new host of lettuce mosaic potyvirus, and a potential inoculum source for recent lettuce mosaic outbreaks in the Salinas Valley of California

Plant Disease (1997) 81, p. 231 (Koike et al.)
S.T. Koike and G.S. Saenz (1997)
First report of powdery mildew caused by Erysiphe heraclei on celery in North America

Plant Disease (1997) 81, p. 1334 (Koike)
S.T. Koike (1997)
Occurrence of stem and crown rot of Gaillardia grandiflora, caused by Sclerotinia sclerotiorum, in California

Plant Disease (1997) 81, p. 959 (Koike et al.)
S.T. Koike, D.M. Henderson, J.D. MacDonald and M.S. Ali-Shtayeh (1997)
Phytophthora root and crown rot of sage caused by Phytophthora cryptogea in California

Plant Disease (1997) 81, 892-896
E.L. Little, S.T. Koike and R.L. Gilbertson (1997)
Bacterial leaf spot of celery in California: Etiology, epidemiology, and role of contaminated seed

Plant Disease (1997) 81, p. 1093 (Koike et al.)
S.T. Koike and G.S. Saenz (1997)
First report of powdery mildew, caused by Erysiphe cruciferarum, on broccoli raab in California

Plant Disease (1997) 81, p. 1331 (Koike)
S.T. Koike (1997)
First report of gummy stem blight, caused by Didymella bryoniae, on watermelon transplants in California

Plant Disease (1997) 81, p. 552 (Koike)
S.T. Koike (1997)
Broccoli raab as a host of Alternaria brassicae in California

Plant Disease (1997) 81, p. 1094 (Koike et al.)
S.T. Koike and R.H. Molinar (1997)
Daikon (Raphanus sativus cv. longipinnatus) as a host of Alternaria brassicae in California

Phytopathology (1996) 86, S4-S5
A.H.C. van Bruggen, G.G.H. Pennings, C.L. Moore, B.M. Wu, K.V. Subbarao, S. Koike and A. Bell (1996)
Geostatistical analysis of lettuce downy mildew incidence in coastal California

Phytopathology (1996) 86, p. S27 (Xiao et al.)
C.L. Xiao, K.F. Schulbach, S.T. Koike and K.V. Subbarao (1996)
Effects of broccoli residue and temperature on Verticillium dahliae in soil

Phytopathology (1996) 86, p. S3 (Umesh et al.)
K.C. Umesh, S.T. Koike and R.L. Gilbertson (1996)
Association of Xanthomonas campestris pv. vitians with lettuce seed