Mary Ruth McDonald

All papers authored by Mary Ruth McDonald

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2023 Afsaneh Sedaghatkish

, Bruce D. Gossen

, Mary Ruth McDonald

Characterization of a virulence factor in Plasmodiophora brassicae, with molecular markers for identification

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2022 Mary Ruth Mcdonald

, Sara Stricker, Bruce D. Gossen

Weed hosts and winter survival of Stemphylium vesicarium on onion in Ontario, Canada

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This paper was not found in any repository, but could be made available legally by the author.

Sarah C. Drury

, Afsaneh Sedaghatkish, Bruce D. Gossen

, Mary Ruth McDonald

Grasses and field crops reduce the concentration of resting spores of Plasmodiophora brassicae in soil under controlled conditions

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Mary Ruth McDonald

, Cyril Selasi Tayviah, Bruce D. Gossen

Human vs. Machine, the Eyes Have It. Assessment of Stemphylium Leaf Blight on Onion Using Aerial Photographs from an NIR Camera

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2021 Frank Hay, Sara Stricker

, Bruce D. Gossen

, Mary Ruth McDonald

, Daniel Heck, Christy Hoepting, Sandeep Sharma

, Sarah Pethybridge

Stemphylium Leaf Blight: A Re-Emerging Threat to Onion Production in Eastern North America

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Sarah C. Drury, Bruce D. Gossen, Mary Ruth McDonald

Clubroot resistance in canola and brassica vegetable cultivars in Ontario, Canada

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Tyler Blauel

, Michael J. Celetti, Katerina S. Jordan, Mary Ruth Mcdonald

Optimizing methods to sample and quantify stem and bulb nematode, Ditylenchus dipsaci, in garlic, Allium sativum, field soil

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Mary Ruth McDonald

, Brian Collins, Lindsey duToit

, Kwasi Adusei-Fosu

Soil amendments and fumigation for the management of Fusarium wilt of bunching spinach in Ontario, Canada

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Sara M. Stricker, Bruce D. Gossen, Mary Ruth McDonald

Risk assessment of secondary metabolites produced by fungi in the genus Stemphylium

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Mary Ruth McDonald

, Lilieth Ives, Kwasi Adusei-Fosu, Katerina S. Jordan

Ditylenchus dipsaci and Fusarium oxysporum on garlic: one plus one does not equal two

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Suzanne Blatt

, Mary Ruth McDonald

, Julia Mlynarek

Entomopathogenic nematodes for control of carrot weevil: efficacy and longevity in muck and mineral soils.

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2020 Bruce D. Gossen

, Cyril Selasi Tayviah, Mary Ruth McDonald

The Role of Ascospores and Conidia, in Relation to Weather Variables, in the Epidemiology of Stemphylium Leaf Blight of Onion

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Julia J. Mlynarek

, Maggie MacDonald, Kathrin Sim, Kim Hiltz, Mary Ruth McDonald

, Suzanne Blatt

Oviposition, Feeding Preferences and Distribution of Delia Species (Diptera: Anthomyiidae) in Eastern Canadian Onions

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M. R. Mcdonald

, F. Al-Daoud, A. Sedaghatkish, M. Moran, T. J. Cranmer, B. D. Gossen

Changes in the range and virulence of Plasmodiophora brassicae across Canada

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Sara M. Stricker, Cyril S. Tayviah, Bruce D. Gossen

, Mary Ruth Mcdonald

Fungicide efficacy and timing for the management of Stemphylium vesicarium on onion

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M. R. McDonald

, B. D. Gossen, J. Robson, F. Al-Daoud

Interaction of solarization, fumigation, and totally impermeable film for the management of clubroot (Plasmodiophora brassicae) on brassica crops

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Bruce D. Gossen

, Mary Ruth McDonald

New technologies could enhance natural biological control and disease management and reduce reliance on synthetic pesticides

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This paper was not found in any repository; the policy of its publisher is unknown or unclear.

T. Blauel, M. R. Mcdonald

Diagnoses of Plant Samples Submitted to the Muck Crops Research Station Diagnostic Laboratory in 2019

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2019 F. Al‐Daoud

, B. D. Gossen

, M. R. McDonald

Maturation of resting spores of Plasmodiophora brassicae continues after host cell death

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Afsaneh Sedaghatkish, Bruce D. Gossen

, Fengqun Yu, Davoud Torkamaneh, Mary Ruth McDonald

Whole-genome DNA similarity and population structure of Plasmodiophora brassicae strains from Canada

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All papers authored by Mary Ruth McDonald