The Sugar-beet Leaf-spot Disease and Its Control by Direct Measures PDF Download
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Author: George Herbert Coons
Publisher:
ISBN:
Category : Cercospora beticola
Languages : en
Pages : 28
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Author: George Herbert Coons
Publisher:
ISBN:
Category : Cercospora beticola
Languages : en
Pages : 28
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Author: Dewey Stewart
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Charles Orrin Townsend
Publisher:
ISBN:
Category : Leaf spots
Languages : en
Pages : 28
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Author: G. H. Coons
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Author: George Herbert Coons
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
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Author: Clatus Martin Nagel
Publisher:
ISBN:
Category : Leaf spots
Languages : en
Pages : 44
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Author: Jessica Vereijssen
Publisher:
ISBN: 9789085040651
Category : Cercospora beticola
Languages : en
Pages : 198
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Author: Sherri Tedford
Publisher:
ISBN:
Category :
Languages : en
Pages :
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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 BEETcastTM 50/35, BEETcastTM 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.
Author: Ohio Agricultural Experiment Station
Publisher:
ISBN:
Category : Agricultural extension work
Languages : en
Pages : 1166
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 994
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