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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-08-20-1744-RE
|2 doi
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|a pubmed25n1092.xml
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|a (DE-627)NLM327781211
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|a (NLM)34232052
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Aćimović, Srđan G
|e verfasserin
|4 aut
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| 245 |
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|a Proof of Concept for Shoot Blight and Fire Blight Canker Management with Postinfection Spray Applications of Prohexadione-Calcium and Acibenzolar-S-Methyl in Apple
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|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 25.01.2022
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|a Date Revised 25.01.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a To reduce the severity of shoot blight and prevent the resulting development of cankers on perennial apple wood, we evaluated eight fire blight postinfection spray programs of prohexadione-calcium (PCA) alone or with acibenzolar-S-methyl (ASM) over 2 years. On mature trees of cultivar Royal Court, a single application of the high PCA rate (247 mg/liter) at 2 to 3 days after inoculation resulted in 89.5 and 69.5% reduction of shoot blight severity after inoculation. Two applications of PCA 247 mg/liter 12 or 14 days apart, with the first one applied 2 to 3 days after inoculation, resulted in 78.8 and 74.5% reduction of shoot blight severity in both years. A 100% control of canker incidence on perennial wood from infected shoots in both years was achieved with a single application of PCA (247 mg/liter) applied at 2 or 3 days after the inoculation, and three applications of PCA (125 mg/liter) + ASM (25 mg/liter) 12 to 16 days apart reduced canker incidence by 83.5 and 69% in the 2 years. The other programs with lower PCA rates and frequencies of application reduced shoot blight severity 50.8 and 51.8% (PCA) and 62.6 to 72% and 59.3% (PCA + ASM) over 2 years, respectively. Reduction of canker incidence on wood by the other programs was 66.5% and 69 to 90.4% in the two years, respectively. As fire blight cankers lead to death of dwarf apple trees and serve as primary sources of inoculum, our effective PCA and PCA + ASM programs could serve as viable postinfection management options. These treatments can reduce or prevent canker development and thus significantly abate tree losses in high-density apple orchards after fire blight epidemics occur
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|a Journal Article
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|a Erwinia amylovora
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|a acibenzolar-S-methyl
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|a fire blight
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| 650 |
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|a post-infection control
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| 650 |
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|a prohexadione-calcium
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| 650 |
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|a rescue treatment
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| 650 |
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4 |
|a shoot blight
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| 650 |
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7 |
|a Thiadiazoles
|2 NLM
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| 650 |
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7 |
|a S-methyl benzo(1,2,3)thiadiazole-7-carbothioate
|2 NLM
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| 650 |
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|a BCW6119347
|2 NLM
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| 650 |
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|a Calcium
|2 NLM
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| 650 |
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|a SY7Q814VUP
|2 NLM
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| 700 |
1 |
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|a Meredith, Christopher L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Santander, Ricardo Delgado
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Khodadadi, Fatemeh
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 105(2021), 12 vom: 16. Dez., Seite 4095-4105
|w (DE-627)NLM098181742
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|7 nnas
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| 773 |
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|g volume:105
|g year:2021
|g number:12
|g day:16
|g month:12
|g pages:4095-4105
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| 856 |
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|u http://dx.doi.org/10.1094/PDIS-08-20-1744-RE
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