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Management of Cercospora leaf spot in sugar beet and aerobiology of Cercospora beticola Sacc.

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dc.contributor.advisor Schaafsma, Art
dc.contributor.advisor Trueman, Cheryl Tedford, Sherri 2016-06-10T17:17:23Z 2016-06-10T17:17:23Z 2016-04 2016-05-30 2016-06-10
dc.description.abstract Cercospora leaf spot, caused by Cercospora beticola Sacc., is the most detrimental disease of sugar beet (Beta vulgaris L.) in the Great Lakes Region. Field trials determined efficacy of BEETcast™ 50/35, BEETcast™ 55/50, and calendar spray schedules using 115 or 235 L ha 1 carrier volume with disease severity value (DSV) accumulation beginning at 1 May or crop emergence. Disease progress was minimized by spray schedules with conservative application intervals compared to longer application intervals. Area under the disease progress curve was reduced by a carrier volume of 235 L ha 1 compared to 115 L ha 1 at one of five sites, and DSV start date at emergence compared to 1 May at one of two sites. Aerial C. beticola conidia concentration was assessed in 6 h intervals and peaked in September with daily mean maxima from noon to 6 pm. Daily mean air temperature was related to daily mean conidia concentration when all data were considered and when concentration exceeded 30 spores m 3. en_US
dc.description.sponsorship Ontario Sugarbeet Growers’ Association, Weather INnovations, Michigan Sugar Company, Ontario Ministry of Agriculture and Food, Growing Forward 2, and Agricultural Adaptation Council. en_US
dc.language.iso en en_US
dc.subject Cercospora leaf spot en_US
dc.subject sugar beet en_US
dc.subject CLS en_US
dc.subject Cercospora beticola en_US
dc.subject disease forecasting en_US
dc.subject spore trap en_US
dc.subject weather en_US
dc.subject BEETcast en_US
dc.subject spray schedules en_US
dc.title Management of Cercospora leaf spot in sugar beet and aerobiology of Cercospora beticola Sacc. 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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