Factors Affecting Fungicide Performance when Targeting Dollar Spot Disease in Creeping Bentgrass

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dc.contributor.advisorDernoeden, Peter Hen_US
dc.contributor.authorPigati, Ray L.en_US
dc.contributor.departmentPlant Science and Landscape Architecture (PSLA)en_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2009-07-03T05:38:13Z
dc.date.available2009-07-03T05:38:13Z
dc.date.issued2009en_US
dc.description.abstractCreeping bentgrass (Agrostis stolonifera) is commonly grown on golf course fairways and dollar spot (Sclerotinia homoeocarpa) is perhaps the most chronically severe disease of bentgrass. Field studies were conducted to: a) determine the influence of simulated rainfall and two mowing timings (AM and PM) on the performance of four fungicides, and b) to assess the effects of two fungicide spray volumes (468 and 935 L water ha-1) and application timings (AM and PM) on dollar spot control in creeping bentgrass. Fungicide effectiveness generally was reduced by simulated rain imposed about 30 minutes after application. Boscalid and chlorothalonil were most and least rain-safe; respectively, and propiconazole and iprodione were intermediate in rain-safeness. Fungicide performance was improved by mowing in the AM prior to fungicide application. A tank-mix of chlorothalonil + propiconazole was unaffected by spray volume or application timing, but the performance of chlorothalonil and propiconazole applied separately was inconclusive.en_US
dc.format.extent523019 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/9325
dc.language.isoen_US
dc.subject.pqcontrolledAgriculture, Plant Pathologyen_US
dc.subject.pqcontrolledAgriculture, Horticultureen_US
dc.subject.pquncontrolledApplication Timingen_US
dc.subject.pquncontrolledCreeping Bentgrassen_US
dc.subject.pquncontrolledDollar Spoten_US
dc.subject.pquncontrolledRainfallen_US
dc.subject.pquncontrolledSclerotinia homoeocarpaen_US
dc.subject.pquncontrolledSpray Volumeen_US
dc.titleFactors Affecting Fungicide Performance when Targeting Dollar Spot Disease in Creeping Bentgrassen_US
dc.typeThesisen_US

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