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Integrated management of bacterial spot (Xanthomonas gardneri) of tomatoes (Solanum lycopersicum L.) in Southwestern Ontario

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dc.contributor.advisor Robinson, Darren Simonton, Tina 2020-04-17T20:24:31Z 2020-04-17T20:24:31Z 2020-04 2020-03-23 2020-04-17
dc.description.abstract Xanthomonas gardneri is the dominant bacterial spot pathogen affecting tomato production in Southwestern Ontario. There are no effective chemical controls for bacterial spot, so the potential for sanitation and host resistance management was investigated. Pathogen transmission in the plug trailer and transplanter were evaluated to gauge the potential impact of sanitation procedures, and differences in foliar and fruit symptoms of nine commercial cultivars were assessed to gauge existing host resistance. The pathogen moved 122 cm within the trailer, less when plug trays were dipped in water instead of irrigated. The transplanter transmitted the pathogen seedling to seedling but was not as impactful as the environment in field trials. There was no correlation between the incidence or severity of foliar and fruit symptoms in the commercial cultivars tested. Sanitation of the trailer and dip watering are recommended, as is inclusion of fruit symptom observations to select resistant cultivars. en_US
dc.description.sponsorship The Fresh Vegetable Growers of Ontario, Ontario Tomato Research Institute and the Ontario Agri-Food Innovation Alliance en_US
dc.language.iso en en_US
dc.rights Attribution-ShareAlike 4.0 International *
dc.rights.uri *
dc.subject Tomato en_US
dc.subject Solanum lycopersicum en_US
dc.subject Xanthomonas gardneri en_US
dc.subject Bacterial spot en_US
dc.subject Pathogen transmission en_US
dc.subject Sanitation en_US
dc.subject Cultivar resistance en_US
dc.subject Host resistance en_US
dc.subject Fruit lesions en_US
dc.subject Defoliation en_US
dc.title Integrated management of bacterial spot (Xanthomonas gardneri) of tomatoes (Solanum lycopersicum L.) in Southwestern Ontario en_US
dc.type Thesis en_US Plant Agriculture en_US Master of Science en_US Department of Plant Agriculture en_US
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Attribution-ShareAlike 4.0 International Except where otherwise noted, this item's license is described as Attribution-ShareAlike 4.0 International