• Optimum nitrogen fertilization of summer cabbage in Ontario 

  Westerveld, S. M.; McDonald, M. R.; McKeown, A. W.; Scott-Dupree, C. D. (International Society of Horticultural Science, 2003)
• Chlorophyll and nitrate meters as nitrogen monitoring tools for selected vegetables in Southern Ontario 

  Westerveld, S. M.; McKeown, A. W.; McDonald, M. R.; Scott-Dupree, C. D. (International Society of Horticultural Science, 2003)
• Management of clubroot of Asian Brassica crops grown on organic soils 

  McDonald, M. R.; Kornatowska, B.; McKeown, A. W. (International Society of Horticultural Science, 2004)
• Leaf photosynthesis and transpiration of two leek cultivars with differing pseudostem pungency levels 

  Doran, J.; Lairson, L.; Grodzinski, B.; McDonald, M. R. (International Society of Horticultural Science, 2004)
• Management of Allium white rot [Sclerotium cepivorum] in onions on organic soil with soil-applied diallyl disulfide and di-N-propyl disulfide 

  Hovius, M.H.Y.; McDonald, M.R. (Taylor & Francis for the Canadian Phytopathological Society, 2002)
• Effects of Glomus intraradices and onion cultivar on Allium white rot development in organic soils in Ontario 

  Jaime, M.D.L.A.; Hsiang, T.; McDonald, M.R. (Taylor & Francis for the Canadian Phytopathological Society, 2008)
• Evaluation of disease forecasting programs for management of septoria late blight (Septoria appiicola) on celery 

  Trueman, C.L.; McDonald, M.R.; Gossen, B.D.; McKeown, A.W. (Taylor & Francis for the Canadian Phytopathological Society, 2007)
• Field evaluation of weather-based spray programs for the control of downy mildew of lettuce (Lactuaca sativa), caused by Bremia lactucae, in Quebec and Ontario 

  Hovius, M.H.Y.; McDonald, M.R.; Carisse, O.; Philion, V. (Taylor & Francis for the Canadian Phytopathological Society, 2007)
• The role of primary and secondary infection in host response to Plasmodiophora brassicae 

  McDonald, Mary Ruth; Sharma, Kalpana; Gossen, Bruce.D.; Deora, Abhinandan; Feng, Jie; Hwang, Sheau-Fang (APS Publications, 2014)
• Nitrogen dynamics of the carrot crop and influences on yield and Alternaria and Cercospora leaf blights 

  Westerveld, Sean Michael (2005-08)
• Third international workshop on allium white rot 

  Institute of Horticultural Research (T.W. Printing Associates Ltd., 1986)
• Best management practices to control herbicide resistant weeds in carrot production 

  Obeid, Kristen; Benoit, Diane Lyse; Swanton, Clarence (Agriculture and Agri-Food Canada, 2015)
• The Big Scheme: The draining of the Holland Marsh 

  Jackson, George (George Jackson, 1998-11)
• Muck Vegetable Cultivar Trial and Research Report 2018 

  McDonald, Mary Ruth; Janse, S.; Vander Kooi, K.; Riches, L.; Telfer, Z.; Blauel, T. (2018)
• Muck Vegetable Cultivar Trial and Research Report 2017 

  McDonald, Mary Ruth; Janse, S.; Vander Kooi, K.; Riches, L.; Telfer, Z. (2017)
• Muck Vegetable Cultivar Trial and Research Report 2016 

  McDonald, Mary Ruth; Janse, S.; Vander Kooi, K.; Riches, L. (2016)
• Muck Vegetable Cultivar Trial and Research Report 2015 

  McDonald, Mary Ruth; Janse, S.; Vander Kooi, K.; Riches, L.; Van Dyk, D. (2015)
• Muck Vegetable Cultivar Trial and Research Report 2014 

  McDonald, Mary Ruth; Janse, S.; Vander Kooi, K.; Riches, L.; Van Dyk, D. (2014)
• Muck Vegetable Cultivar Trial and Research Report 2013 

  McDonald, Mary Ruth; Janse, S.; Vander Kooi, K.; Riches, L.; Tesfaendrias, M. (2013)
• Muck Vegetable Cultivar Trial and Research Report 2012 

  McDonald, Mary Ruth; Janse, S.; Vander Kooi, K.; Riches, L.; Tesfaendrias, M. (2012)

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