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20231226072259.0 |
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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-08-22-1960-RE
|2 doi
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|a pubmed24n1190.xml
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|a (DE-627)NLM357298039
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|a (NLM)37227436
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Mattox, Clint M
|e verfasserin
|4 aut
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| 245 |
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|a Iron Sulfate and Phosphorous Acid Affect Turfgrass Surface pH and Microdochium Patch Severity on Annual Bluegrass
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 03.11.2023
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|a Date Revised 03.11.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Microdochium patch is a turfgrass disease caused by the fungal pathogen Microdochium nivale. Iron sulfate heptahydrate (FeSO4•7H2O) and phosphorous acid (H3PO3) applications have previously been shown to suppress Microdochium patch on annual bluegrass putting greens when applied alone, although either disease suppression was inadequate or turfgrass quality was reduced from the applications. A field experiment was conducted in Corvallis, Oregon, U.S.A., to evaluate the combined effects of FeSO4•7H2O and H3PO3 on Microdochium patch suppression and annual bluegrass quality. The results of this work suggest that the addition of 3.7 kg H3PO3 ha-1 with 24 or 49 kg FeSO4•7H2O ha-1 applied every 2 weeks improved the suppression of Microdochium patch without substantially compromising turf quality, which occurred when 98 kg FeSO4•7H2O ha-1 was applied with or without H3PO3. Spray suspensions reduced the pH of the water carrier, therefore two additional growth chamber experiments were conducted to better understand the effects of these treatments on leaf surface pH and Microdochium patch suppression. On the application date in the first growth chamber experiment, at least a 19% leaf surface pH reduction was observed compared with the well water control when FeSO4•7H2O was applied alone. When 3.7 kg H3PO3 ha-1 was combined with FeSO4•7H2O, regardless of the rate, the leaf surface pH was reduced by at least 34%. The second growth chamber experiment determined that sulfuric acid (H2SO4) at a 0.5% spray solution rate was always in the group that produced the lowest annual bluegrass leaf surface pH, but did not suppress Microdochium patch. Together, these results suggest that while treatments decrease leaf surface pH, this decrease in pH is not responsible for the suppression of Microdochium patch
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| 650 |
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|a Journal Article
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|a Microdochium nivale
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| 650 |
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|a Poa annua
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| 650 |
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|a disease management
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| 650 |
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|a fungi
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| 650 |
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|a turf
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| 650 |
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|a phosphonic acid
|2 NLM
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| 650 |
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|a 13598-36-2
|2 NLM
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| 650 |
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|a Water
|2 NLM
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| 650 |
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|a 059QF0KO0R
|2 NLM
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| 650 |
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|a Sulfates
|2 NLM
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| 650 |
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|a Iron
|2 NLM
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| 650 |
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7 |
|a E1UOL152H7
|2 NLM
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| 700 |
1 |
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|a Dumelle, Michael J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a McDonald, Brian W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gould, Micah A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Olsen, Conner J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Braithwaite, Emily T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kowalewski, Alec R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 107(2023), 10 vom: 28. Okt., Seite 3131-3138
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
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|g volume:107
|g year:2023
|g number:10
|g day:28
|g month:10
|g pages:3131-3138
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| 856 |
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|u http://dx.doi.org/10.1094/PDIS-08-22-1960-RE
|3 Volltext
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|d 107
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