Control of Early Blight in the San Luis Valley, Colorado

Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Addi...
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Autor*in:	Davidson, Robert D. [verfasserIn] Houser, Andrew J. [verfasserIn] Haslar, Richard [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2015

Schlagwörter:	Early blight Potatoes Fungicides Disease control Yield Degree day model

Übergeordnetes Werk:	Enthalten in: American journal of potato research - New York, NY : Springer, 1923, 93(2015), 1 vom: 10. Dez., Seite 43-49
Übergeordnetes Werk:	volume:93 ; year:2015 ; number:1 ; day:10 ; month:12 ; pages:43-49

Links:	Volltext

DOI / URN:	10.1007/s12230-015-9482-4

Katalog-ID:	SPR025508830

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520			\|a Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields.
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700	1		\|a Haslar, Richard \|e verfasserin \|4 aut
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allfields	10.1007/s12230-015-9482-4 doi (DE-627)SPR025508830 (SPR)s12230-015-9482-4-e DE-627 ger DE-627 rakwb eng 630 640 ASE Davidson, Robert D. verfasserin aut Control of Early Blight in the San Luis Valley, Colorado 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields. Early blight (dpeaa)DE-He213 Potatoes (dpeaa)DE-He213 Fungicides (dpeaa)DE-He213 Disease control (dpeaa)DE-He213 Yield (dpeaa)DE-He213 Degree day model (dpeaa)DE-He213 Houser, Andrew J. verfasserin aut Haslar, Richard verfasserin aut Enthalten in American journal of potato research New York, NY : Springer, 1923 93(2015), 1 vom: 10. Dez., Seite 43-49 (DE-627)54963410X (DE-600)2395546-6 1874-9380 nnns volume:93 year:2015 number:1 day:10 month:12 pages:43-49 https://dx.doi.org/10.1007/s12230-015-9482-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 93 2015 1 10 12 43-49
spelling	10.1007/s12230-015-9482-4 doi (DE-627)SPR025508830 (SPR)s12230-015-9482-4-e DE-627 ger DE-627 rakwb eng 630 640 ASE Davidson, Robert D. verfasserin aut Control of Early Blight in the San Luis Valley, Colorado 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields. Early blight (dpeaa)DE-He213 Potatoes (dpeaa)DE-He213 Fungicides (dpeaa)DE-He213 Disease control (dpeaa)DE-He213 Yield (dpeaa)DE-He213 Degree day model (dpeaa)DE-He213 Houser, Andrew J. verfasserin aut Haslar, Richard verfasserin aut Enthalten in American journal of potato research New York, NY : Springer, 1923 93(2015), 1 vom: 10. Dez., Seite 43-49 (DE-627)54963410X (DE-600)2395546-6 1874-9380 nnns volume:93 year:2015 number:1 day:10 month:12 pages:43-49 https://dx.doi.org/10.1007/s12230-015-9482-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 93 2015 1 10 12 43-49
allfields_unstemmed	10.1007/s12230-015-9482-4 doi (DE-627)SPR025508830 (SPR)s12230-015-9482-4-e DE-627 ger DE-627 rakwb eng 630 640 ASE Davidson, Robert D. verfasserin aut Control of Early Blight in the San Luis Valley, Colorado 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields. Early blight (dpeaa)DE-He213 Potatoes (dpeaa)DE-He213 Fungicides (dpeaa)DE-He213 Disease control (dpeaa)DE-He213 Yield (dpeaa)DE-He213 Degree day model (dpeaa)DE-He213 Houser, Andrew J. verfasserin aut Haslar, Richard verfasserin aut Enthalten in American journal of potato research New York, NY : Springer, 1923 93(2015), 1 vom: 10. Dez., Seite 43-49 (DE-627)54963410X (DE-600)2395546-6 1874-9380 nnns volume:93 year:2015 number:1 day:10 month:12 pages:43-49 https://dx.doi.org/10.1007/s12230-015-9482-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 93 2015 1 10 12 43-49
allfieldsGer	10.1007/s12230-015-9482-4 doi (DE-627)SPR025508830 (SPR)s12230-015-9482-4-e DE-627 ger DE-627 rakwb eng 630 640 ASE Davidson, Robert D. verfasserin aut Control of Early Blight in the San Luis Valley, Colorado 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields. Early blight (dpeaa)DE-He213 Potatoes (dpeaa)DE-He213 Fungicides (dpeaa)DE-He213 Disease control (dpeaa)DE-He213 Yield (dpeaa)DE-He213 Degree day model (dpeaa)DE-He213 Houser, Andrew J. verfasserin aut Haslar, Richard verfasserin aut Enthalten in American journal of potato research New York, NY : Springer, 1923 93(2015), 1 vom: 10. Dez., Seite 43-49 (DE-627)54963410X (DE-600)2395546-6 1874-9380 nnns volume:93 year:2015 number:1 day:10 month:12 pages:43-49 https://dx.doi.org/10.1007/s12230-015-9482-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 93 2015 1 10 12 43-49
allfieldsSound	10.1007/s12230-015-9482-4 doi (DE-627)SPR025508830 (SPR)s12230-015-9482-4-e DE-627 ger DE-627 rakwb eng 630 640 ASE Davidson, Robert D. verfasserin aut Control of Early Blight in the San Luis Valley, Colorado 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields. Early blight (dpeaa)DE-He213 Potatoes (dpeaa)DE-He213 Fungicides (dpeaa)DE-He213 Disease control (dpeaa)DE-He213 Yield (dpeaa)DE-He213 Degree day model (dpeaa)DE-He213 Houser, Andrew J. verfasserin aut Haslar, Richard verfasserin aut Enthalten in American journal of potato research New York, NY : Springer, 1923 93(2015), 1 vom: 10. Dez., Seite 43-49 (DE-627)54963410X (DE-600)2395546-6 1874-9380 nnns volume:93 year:2015 number:1 day:10 month:12 pages:43-49 https://dx.doi.org/10.1007/s12230-015-9482-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_647 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 93 2015 1 10 12 43-49
language	English
source	Enthalten in American journal of potato research 93(2015), 1 vom: 10. Dez., Seite 43-49 volume:93 year:2015 number:1 day:10 month:12 pages:43-49
sourceStr	Enthalten in American journal of potato research 93(2015), 1 vom: 10. Dez., Seite 43-49 volume:93 year:2015 number:1 day:10 month:12 pages:43-49
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Early blight Potatoes Fungicides Disease control Yield Degree day model
dewey-raw	630
isfreeaccess_bool	false
container_title	American journal of potato research
authorswithroles_txt_mv	Davidson, Robert D. @@aut@@ Houser, Andrew J. @@aut@@ Haslar, Richard @@aut@@
publishDateDaySort_date	2015-12-10T00:00:00Z
hierarchy_top_id	54963410X
dewey-sort	3630
id	SPR025508830
language_de	englisch
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author	Davidson, Robert D.
spellingShingle	Davidson, Robert D. ddc 630 misc Early blight misc Potatoes misc Fungicides misc Disease control misc Yield misc Degree day model Control of Early Blight in the San Luis Valley, Colorado
authorStr	Davidson, Robert D.
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topic_title	630 640 ASE Control of Early Blight in the San Luis Valley, Colorado Early blight (dpeaa)DE-He213 Potatoes (dpeaa)DE-He213 Fungicides (dpeaa)DE-He213 Disease control (dpeaa)DE-He213 Yield (dpeaa)DE-He213 Degree day model (dpeaa)DE-He213
topic	ddc 630 misc Early blight misc Potatoes misc Fungicides misc Disease control misc Yield misc Degree day model
topic_unstemmed	ddc 630 misc Early blight misc Potatoes misc Fungicides misc Disease control misc Yield misc Degree day model
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title	Control of Early Blight in the San Luis Valley, Colorado
ctrlnum	(DE-627)SPR025508830 (SPR)s12230-015-9482-4-e
title_full	Control of Early Blight in the San Luis Valley, Colorado
author_sort	Davidson, Robert D.
journal	American journal of potato research
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author_browse	Davidson, Robert D. Houser, Andrew J. Haslar, Richard
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author-letter	Davidson, Robert D.
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title_sort	control of early blight in the san luis valley, colorado
title_auth	Control of Early Blight in the San Luis Valley, Colorado
abstract	Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields.
abstractGer	Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields.
abstract_unstemmed	Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. However, past and this current research suggest that judicious use of a well-managed fungicide program can significantly reduce disease and increase yields. Additionally, wide spread use of fungicides in various rotations (azoxystrobin, pyraclostrobin, chlorothalonil, dithiocarbamate, mancozeb and boscalid) was shown to substantially decrease the disease levels of plants in treated versus untreated plots. Field trials evaluating fungicide rotations and application scheduling were conducted using the cultivar Russet Norkotah Selection 8. Treatments were first applied to either coincide with the dates as indicated by the early blight degree day model currently used in the San Luis Valley (~60 days after planting - DAP), or starting later in the season (~80 DAP). While significant differences (P < 0.05) in disease reduction were noted each year using fungicides, there was no corresponding yield advantage of fungicide treated versus the control (un-treated) plots. However, when data were analyzed over three years, a significant higher (P < 0.05) foliar disease control and subsequent yield increase among treatments was observed when a strobilurin product was used first in the fungicide rotation at 78 DAP. Results indicate that for a cost of $100–125/ha, growers can use fungicides with an appropriate rotation of active ingredients to control early blight and potentially increase yields.
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title_short	Control of Early Blight in the San Luis Valley, Colorado
url	https://dx.doi.org/10.1007/s12230-015-9482-4
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author2	Houser, Andrew J. Haslar, Richard
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doi_str	10.1007/s12230-015-9482-4
up_date	2024-07-03T16:22:03.374Z
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fullrecord_marcxml	<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000caa a22002652 4500</leader><controlfield tag="001">SPR025508830</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20230519230024.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">201007s2015 xx \|\|\|\|\|o 00\| \|\|eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1007/s12230-015-9482-4</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)SPR025508830</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(SPR)s12230-015-9482-4-e</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rakwb</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2="4"><subfield code="a">630</subfield><subfield code="a">640</subfield><subfield code="q">ASE</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Davidson, Robert D.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Control of Early Blight in the San Luis Valley, Colorado</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">2015</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract Early blight of potatoes caused by Alternaria solani is a disease that growers in Colorado often do not consider a major problem. 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Control of Early Blight in the San Luis Valley, Colorado

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