Mary Ruth McDonald
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Publications of Mary Ruth McDonald (74 listed):
Canadian Journal of Plant Pathology (2023) 45, 134-139
Mary Ruth McDonald, Sara Stricker and Bruce D. Gossen (2023)
Weed hosts and winter survival of Stemphylium vesicarium on onion in Ontario, Canada
Plant Disease (2021) 105 (7 - 1283)
Bruce D. Gossen, C. Selasi Tayviah and Mary Ruth McDonald (2021)
The role of ascospores and conidia, in relation to weather variables, in the epidemiology of Stemphylium leaf blight of onion
Plant Disease (2021) 105 (12 - 0903)
Frank Hay, Sara Stricker, Bruce D. Gossen, Mary Ruth McDonald, Daniel Heck, Christy Hoepting, Sandeep Sharma and Sarah Pethybridge (2021)
Stemphylium leaf blight: A re-emerging threat to onion production in eastern North America
Pest Management Science (2021) 77, 2433-2443
Suzanne Blatt, Mary Ruth McDonald and Julia Mlynarek (2021)
Entomopathogenic nematodes for control of carrot weevil: efficacy and longevity in muck and mineral soils
Canadian Journal of Plant Pathology (2021) 43, 820-826
Tyler Blauel, Michael J. Celetti, Katerina S. Jordan and Mary Ruth McDonald (2021)
Optimizing methods to sample and quantify stem and bulb nematode, Ditylenchus dipsaci, in garlic, Allium sativum, field soil
Canadian Journal of Plant Pathology (2021) 43, 304-310
M.R. Mcdonald, F. Al-Daoud, A. Sedaghatkish, M. Moran, T.J. Cranmer and B.D. Gossen (2021)
Changes in the range and virulence of Plasmodiophora brassicae across Canada
Canadian Journal of Plant Pathology (2021) 43, 275-287
Sara M. Stricker, Cyril S. Tayviah, Bruce D. Gossen and Mary Ruth McDonald (2021)
Fungicide efficacy and timing for the management of Stemphylium vesicarium on onion
Insects (2020) 11 (11 - 780)
Julia J. Mlynarek, Maggie MacDonald, Kathrin Sim, Kim Hiltz, Mary Ruth McDonald and Suzanne Blatt (2020)
Oviposition, feeding preferences and distribution of Delia species (Diptera: Anthomyiidae) in eastern Canadian onions
Plant Pathology (2020) 69, 310-319
F. Al-Daoud, B.D. Gossen and M.R. McDonald (2020)
Maturation of resting spores of Plasmodiophora brassicae continues after host cell death
Canadian Journal of Plant Pathology (2020) 42, 30-40
Bruce D. Gossen and Mary Ruth McDonald (2020)
New technologies could enhance natural biological control and disease management and reduce reliance on synthetic pesticides
Plant Pathology (2019) 68, 954-961
B.D. Gossen, F. Al-Daoud, T. Dumonceaux, J.A. Dalton, G. Peng, D. Pageau and M.R. McDonald (2019)
Comparison of techniques for estimation of resting spores of Plasmodiophora brassicae in soil
The Canadian Entomologist (2019) 151, 391-405
Zachariah Telfer, Jason Lemay, Mary Ruth McDonald and Cynthia Scott-Dupree (2019)
Evaluating the current integrated pest management recommendations in Canada for carrot weevil (Coleoptera: Curculionidae) and carrot rust fly (Diptera: Psilidae)
European Journal of Plant Pathology (2019) 154, 727-737
Yulong Peng, Bruce D. Gossen, Yun Huang, Fadi Al-Daoud and Mary Ruth McDonald (2019)
Development of Plasmodiophora brassicae in the root cortex of cabbage over time
Canadian Journal of Plant Pathology (2019) 41, 228-241
Jennifer.M. Foster, C. Selasi Tayviah, Sara M. Stricker, Bruce D. Gossen and Mary Ruth McDonald (2019)
Susceptibility to Stemphylium vesicarium of asparagus, onion, pear, and rye in Canada
Canadian Journal of Plant Pathology (2018) 40, 284-298
Stephen E. Strelkov, Sheau-Fang Hwang, Victor P. Manolii, Tiesen Cao, Rudolph Fredua-Agyeman, Michael W. Harding, Gary Peng, Bruce D. Gossen, Mary Ruth Mcdonald and David Feindel (2018)
Virulence and pathotype classification of Plasmodiophora brassicae populations collected from clubroot resistant canola (Brassica napus) in Canada
Environmental Entomology (2018) 47, 788-794
Jason Lemay, Zachariah Telfer, Cynthia Scott-Dupree and Mary Ruth McDonald (2018)
The impact of the carrot rust fly and carrot weevil integrated pest management program on the ground-dwelling beetle complex in commercial carrot fields at the Holland Marsh, Ontario, Canada
Plant Disease (2018) 102, 2253-2257
Jennifer M. Foster and Mary Ruth McDonald (2018)
Evaluation of the TOM-CAST forecasting model in asparagus for management of Stemphylium leaf spot in Ontario, Canada
Canadian Journal of Plant Pathology (2017) 39, 25-36
Bruce D. Gossen, Jill A. Dalton, Fadi Al-Daoud and Mary Ruth McDonald (2017)
Metabolic cost of resistance in clubroot-resistant canola and napa cabbage
Canadian Journal of Plant Pathology (2017) 39, 475-485
Bruce D. Gossen, Travis J. Cranmer, Thomas V. Gludovacz and Mary Ruth Mcdonald (2017)
Weather thresholds for clubroot development on canola and brassica vegetables
Plant Disease (2017) 101, p. 1056 (Yu et al.)
Q. Yu, E. Ponomareva, D. Van Dyk, M.R. McDonald, F. Sun, M. Madani and M. Tenuta (2017)
First report of the carrot cyst nematode (Heterodera carotae) from carrot fields in Ontario, Canada
European Journal of Plant Pathology (2017) 149, 435-442
Travis J. Cranmer, Fadi Al-Daoud, Bruce D. Gossen, Abhinandan Deora, Sheau-Fang Hwang and Mary Ruth McDonald (2017)
Vertical distribution of resting spores of Plasmodiophora brassicae in soil
Plant Disease (2017) 101, 442-447
Fadi Al-Daoud, Bruce D. Gossen, Justin Robson and Mary Ruth McDonald (2017)
Propidium monoazide improves quantification of resting spores of Plasmodiophora brassicae with qPCR
Plant Pathology (2016) 65, 1238-1245
B.D. Gossen, H. Kasinathan, A. Deora, G. Peng and M.R. McDonald (2016)
Effect of soil type, organic matter content, bulk density and saturation on clubroot severity and biofungicide efficacy
Canadian Journal of Plant Pathology (2015) 37, 403-413
B.D. Gossen, S.E. Strelkov, V.P. Manolii, D.C. Rennie, T. Cao, S.F. Hwang, G. Peng and M.R. McDonald (2015)
Spread of Plasmodiophora brassicae on canola in Canada, 2003–2014: Old pathogen, new home
Plant Disease (2015) 99, 1002-1009
Abhinandan Deora, Bruce D. Gossen, Sasan Amirsadeghi and Mary Ruth McDonald (2015)
A multiplex qPCR assay for detection and quantification of Plasmodiophora brassicae in soil
European Journal of Plant Pathology (2014) 140, 859-862
T.V. Gludovacz, A. Deora, M.R. McDonald and B.D. Gossen (2014)
Cortical colonization by Plasmodiophora brassicae in susceptible and resistant cabbage cultivars
Plant Disease (2014) 98, 32-42
M.L. Parker, M.R. McDonald and G.J. Boland (2014)
Evaluation of air sampling and detection methods to quantify airborne ascospores of Sclerotinia sclerotiorum
Canadian Journal of Plant Pathology (2014) 36, 438-446
Monica L. Parker, Mary Ruth McDonald and Greg J. Boland (2014)
Assessment of spatial distribution of ascospores of Sclerotinia sclerotiorum for regional disease forecasting in carrots
Canadian Journal of Plant Science (2014) 94, 1391-1399
Michael T. Tesfaendrias, Cheryl L. Trueman, Bruce D. Gossen, Alan W. McKeown and Mary Ruth McDonald (2014)
The influence of nitrogen and calcium fertilizers on septoria late blight and yield of celery
Canadian Journal of Plant Pathology (2014) 36, 37-48
Bruce D. Gossen, Abhinandan Deora, Gary Peng, Sheau-Fang Hwang and Mary Ruth McDonald (2014)
Effect of environmental parameters on clubroot development and the risk of pathogen spread
Canadian Journal of Plant Pathology (2014) 36, 99-112
Gary Peng, Rachid Lahlali, Sheau-Fang Hwang, Denis Pageau, Russell K. Hynes, Mary Ruth McDonald, Bruce D. Gossen and Stephen E. Strelkov (2014)
Crop rotation, cultivar resistance, and fungicides/biofungicides for managing clubroot (Plasmodiophora brassicae) on canola
Plant Disease (2014) 98, 929-936
C. Saude, P.W. Simon and M.R. McDonald (2014)
Incidence and severity of cavity spot of carrot as affected by pigmentation, temperature, and rainfall
Phytopathology (2014) 104, 1078-1087
Mary Ruth McDonald, Kalpana Sharma, Bruce D. Gossen, Abhinandan Deora, Jie Feng and Sheau-Fang Hwang (2014)
The role of primary and secondary infection in host response to Plasmodiophora brassicae
Canadian Journal of Plant Science (2014) 94, 109-118
A. Deora, B.D. Gossen, S.F. Hwang, D. Pageau, R.J. Howard, F. Walley and M.R. McDonald (2014)
Effect of boron on clubroot of canola in organic and mineral soils and on residual toxicity to rotational crops
Canadian Journal of Plant Pathology (2014) 36, 327-340
Bruce D. Gossen, Odile Carisse, Lawrence M. Kawchuk, Hervé Van Der Heyden and Mary Ruth McDonald (2014)
Recent changes in fungicide use and the fungicide insensitivity of plant pathogens in Canada
HortScience (2014) 49, 608-614
Catarina Saude, Mary Ruth McDonald and Sean Westerveld (2014)
Nitrogen and fungicide applications for the management of fungal blights of carrot
Phytopathology (2013) 103, 245-254
R. Lahlali, G. Peng, B.D. Gossen, L. McGregor, F.Q. Yu, R.K. Hynes, S.F. Hwang, M.R. McDonald and S.M. Boyetchko (2013)
Evidence that the biofungicide serenade (Bacillus subtilis) suppresses clubroot on canola via antibiosis and induced host resistance
European Journal of Plant Pathology (2013) 135, 581-593
Mary Ruth McDonald, Bruce D. Gossen, Cezarina Kora, Monica Parker and Greg Boland (2013)
Using crop canopy modification to manage plant diseases
Plant Disease (2013) 97, p. 1248 (Saude et al.)
C. Saude, S. Westerveld, M. Filotas and M.R. McDonald (2013)
First report of downy mildew caused by Peronospora belbahrii on basil (Ocimum spp.) in Ontario
Canadian Journal of Plant Pathology (2013) 35, 175-191
Bruce D. Gossen, Mary Ruth McDonald, Sheau-Fang Hwang, Stephen E. Strelkov and Gary Peng (2013)
A comparison of clubroot development and management on canola and Brassica vegetables
Plant Disease (2013) 97, 720-727
Kalpana Sharma, Bruce D. Gossen, David Greenshields, Gopalan Selvaraj, Stephen E. Strelkov and Mary Ruth McDonald (2013)
Reaction of lines of the rapid cycling Brassica collection and Arabidopsis thaliana to four pathotypes of Plasmodiophora brassicae
Canadian Journal of Plant Pathology (2013) 35, 294-303
Bruce D. Gossen, Hema Kasinathan, Tiesen Cao, Victor P. Manolii, Stephen E. Strelkov, Sheau-Fang Hwang and Mary Ruth McDonald (2013)
Interaction of pH and temperature affect infection and symptom development of Plasmodiophora brassicae in canola
Annals of Applied Biology (2013) 163, 56-71
A. Deora, B.D. Gossen and M.R. McDonald (2013)
Cytology of infection, development and expression of resistance to Plasmodiophora brassicae in canola
Canadian Journal of Plant Pathology (2013) 35, 371-383
Kalpana Sharma, Bruce D. Gossen, Ronald J. Howard, Thomas Gludovacz and Mary Ruth McDonald (2013)
Reaction of selected Brassica vegetable crops to Canadian pathotypes of Plasmodiophora brassicae
HortTechnology (2012) 22, 311-319
Catarina Saude, Alan McKeown, Bruce D. Gossen and Mary Ruth McDonald (2012)
Effect of host resistance and fungicide application on clubroot pathotype 6 in green cabbage and napa cabbage
Plant Pathology (2012) 61, 593-599
B.D. Gossen, K.K.C. Adhikari and M.R. McDonald (2012)
Effects of temperature on infection and subsequent development of clubroot under controlled conditions
HortScience (2012) 47, 374-377
Kalpana K.C. Adhikari, Mary Ruth McDonald and Bruce D. Gossen (2012)
Reaction to Plasmodiophora brassicae pathotype 6 in lines of Brassica vegetables, Wisconsin Fast Plants, and canola
Canadian Journal of Plant Pathology (2012) 34, 239-247
A. Deora, B.D. Gossen and M.R. McDonald (2012)
Infection and development of Plasmodiophora brassicae in resistant and susceptible canola cultivars
Canadian Journal of Plant Pathology (2012) 34, 516-523
Bruce D. Gossen, Kalpana K.C. Adhikari and Mary Ruth McDonald (2012)
Effect of seeding date on development of clubroot in short-season Brassica crops
Canadian Journal of Plant Pathology (2011) 33, 187-201
Adam J. Foster, Cezarina Kora, Mary Ruth McDonald and Gregory J. Boland (2011)
Development and validation of a disease forecast model for Sclerotinia rot of carrot
Phytopathology (2011) 101, 1424-1432
Kalpana Sharma, Bruce D. Gossen and Mary Ruth McDonald (2011)
Effect of temperature on cortical infection by Plasmodiophora brassicae and clubroot severity
Plant Pathology (2011) 60, 830-838
K. Sharma, B.D. Gossen and M.R. McDonald (2011)
Effect of temperature on primary infection by Plasmodiophora brassicae and initiation of clubroot symptoms
Plant Pathology (2011) 60, 566-574
G. Peng, L. McGregor, R. Lahlali, B.D. Gossen, S.F. Hwang, K.K. Adhikari, S.E. Strelkov and M.R. McDonald (2011)
Potential biological control of clubroot on canola and crucifer vegetable crops
Plant Disease (2011) 95, 504-514
Odile Carisse, David-Mathieu Tremblay, Mary Ruth McDonald, Luc Brodeur and Neil McRoberts (2011)
Management of Botrytis leaf blight of onion: The Québec experience of 20 years of continual improvement
Canadian Journal of Plant Pathology (2011) 33, 475-484
A. Deora, B.D. Gossen, F. Walley and M.R. McDonald (2011)
Boron reduces development of clubroot in canola
Canadian Journal of Plant Pathology (2010) 32, 458-467
Bruce D. Gossen, Mary Ruth McDonald, Robert L. Conner, Sheau-Fang Hwang and Kan-Fa Chang (2010)
Significance of seed infection on epidemics of mycosphaerella blight in field pea
Canadian Journal of Plant Pathology (2008) 30, 543-553
M.D.L.A. Jaime, T. Hsiang and M.R. McDonald (2008)
Effects of Glomus intraradices and onion cultivar on Allium white rot development in organic soils in Ontario
HortScience (2008) 43, 1509-1513
Mary Ruth McDonald and Sean M. Westerveld (2008)
Temperature prior to harvest influences the incidence and severity of clubroot on two Asian Brassica vegetables
Plant Disease (2008) 92, 132-136
Mary Ruth McDonald, Kevin D. Vander Kooi and Sean M. Westerveld (2008)
Effect of foliar trimming and fungicides on apothecial number of Sclerotinia sclerotiorum, leaf blight severity, yield, and canopy microclimate in carrot
HortScience (2008) 43, 1522-1527
Sean M. Westerveld, Alan W. McKeown and Mary Ruth McDonald (2008)
Relationship between nitrogen fertilization and Cercospora leaf spot and Alternaria leaf blight of carrot
Canadian Journal of Plant Pathology (2008) 30, 206-213
A.J. Foster, M.R. McDonald and G.J. Boland (2008)
Disease progression of sclerotinia rot of carrot, caused by Sclerotinia sclerotiorum, from shoot to root before and after harvest
Plant Disease (2008) 92, p. 318 (Hoepting et al.)
C.A. Hoepting, J.K. Allen, K.D. Vanderkooi, M.Y. Hovius, M.F. Fuchs, H.R. Pappu and M.R. McDonald (2008)
First report of iris yellow spot virus on onion in Canada
Canadian Journal of Plant Pathology (2007) 29, 9-17
M.H.Y. Hovius, O. Carisse, V. Philion and M.R. McDonald (2007)
Field evaluation of weather-based spray programs for the control of downy mildew of lettuce (Lactuca sativa), caused by Bremia lactucae, in Quebec and Ontario
Canadian Journal of Plant Pathology (2006) 28, S239-S246
Mary Ruth McDonald (2006)
Advances in conventional methods of disease management
Plant Pathology (2005) 54, 665-670
C. Kora, M.R. McDonald and G.J. Boland (2005)
Occurrence of fungal pathogens of carrots on wooden boxes used for storage
Canadian Journal of Plant Pathology (2005) 27, 245-258
C. Kora, M.R. McDonald and G.J. Boland (2005)
Epidemiology of sclerotinia rot of carrot caused by Sclerotinia sclerotiorum
Plant Disease (2005) 89, 549-557
Cezarina Kora, Mary Ruth McDonald and Greg J. Boland (2005)
Lateral clipping of canopy influences the microclimate and development of apothecia of Sclerotinia sclerotiorum in carrots
Environmental Entomology (2005) 34, 743-747
A.D. Martin, R.H. Hallett, M.K. Sears and M.R. McDonald (2005)
Overwintering ability of Liriomyza huidobrensis (Blanchard) (Diptera: Agromyzidae) in southern Ontario, Canada
Canadian Journal of Plant Pathology (2004) 26, 480-488
Mary Ruth McDonald and Greg J. Boland (2004)
Forecasting diseases caused by Sclerotinia spp. in eastern Canada: fact or fiction?
Plant Disease (2003) 87, 456-470
Cezarina Kora, Mary Ruth McDonald and Greg J. Boland (2003)
Sclerotinia rot of carrot: an example of phenological adaptation and bicyclic development by Sclerotinia sclerotiorum
Canadian Journal of Plant Pathology (2002) 24, 281-286
M.H.Y. Hovius and M.R. McDonald (2002)
Management of Allium white rot [Sclerotium cepivorum] in onions on organic soil with soil-applied diallyl disulfide and di-N-propyl disulfide
Plant Disease (2002) 86, p. 1406 (Kora et al.)
C. Kora, G.J. Boland and M.R. McDonald (2002)
First report of foliar and root infection of carrot by Sclerotinia minor in Ontario, Canada
Canadian Journal of Plant Pathology (2000) 22, 387-391
D.M. Earnshaw, M.R. McDonald and G.J. Boland (2000)
Interactions among isolates and mycelial compatibility groups of Sclerotium cepivorum and cultivars of onion (Allium cepa)
International Congress of Plant Pathology (1998) Philion et al. - Field validation of a forecast ...
V. Philion, O. Carisse and M.R. Mcdonald (1998)
Field validation of a forecast model for downy mildew of lettuce caused by Bremia lactucea
Edinburgh, U.K. (9 - 16 Aug. 1998), Poster presented in section: Population genetics, structure and dynamics
