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NLM295858915 |
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DE-627 |
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20231225084557.0 |
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cr uuu---uuuuu |
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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-05-18-0802-RE
|2 doi
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|a pubmed24n0986.xml
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|a eng
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| 100 |
1 |
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|a Peterson, Ebba K
|e verfasserin
|4 aut
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| 245 |
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|a Film-Forming Polymers and Surfactants Reduce Infection and Sporulation of Phytophthora ramorum on Rhododendron
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|c 2019
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|a Text
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|a Date Completed 07.08.2019
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|a Date Revised 07.08.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Phytophthora ramorum, cause of sudden oak death and ramorum leaf blight, can persist undetected in infested nurseries. Many conventional fungicides are effective in reducing or delaying symptom expression but some may confound visual detection of infected plants. We tested film-forming polymers (FFPs) and surfactants for their ability to reduce infection and sporulation of P. ramorum on rhododendron. FFPs (Anti-Stress, Moisturin, Nature Shield, Nu-Film, and Vapor Gard) and surfactants (Tergitol, Zonix, and an unregistered AGAE product) were screened in detached-leaf assays. Anti-Stress, Nu-Film, Zonix, and a Nu-Film-Zonix mixture were additionally tested for durability, protection against exposure to infested water, and a reduction in sporulation. FFP effectiveness was retained for at least 3 weeks of exposure to overhead irrigation and rain. Relative to controls, foliar treatments protected rhododendron branches exposed to infested water. No treatments prevented symptom development when applied postinfection but leaves treated with Anti-Stress, Zonix, and the Nu-Film-Zonix mixture produced significantly fewer sporangia relative to controls. Application of FFPs and surfactants to quarantined, potentially infected plants offers a management tool for reducing infection and sporulation but not symptom expression, thereby limiting disease spread without interfering with disease detection
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|a Journal Article
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7 |
|a Fungicides, Industrial
|2 NLM
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|a Polymers
|2 NLM
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|a Surface-Active Agents
|2 NLM
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|a Larson, Eric R
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|4 aut
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1 |
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|a Parke, Jennifer L
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant disease
|d 1997
|g 103(2019), 6 vom: 21. Juni, Seite 1148-1155
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|x 0191-2917
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|g volume:103
|g year:2019
|g number:6
|g day:21
|g month:06
|g pages:1148-1155
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|u http://dx.doi.org/10.1094/PDIS-05-18-0802-RE
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