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NLM371872049 |
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20240925232259.0 |
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240503s2024 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-01-24-0153-RE
|2 doi
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|a pubmed24n1548.xml
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|a (DE-627)NLM371872049
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|a (NLM)38698518
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Hou, Ying
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Inhibitory Activities of Five Fungicides on Alternaria suffruticosae and Their Field Control Efficacy Against Tree Peony Black Spot
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| 264 |
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1 |
|c 2024
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|a Text
|b txt
|2 rdacontent
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| 337 |
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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 24.09.2024
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|a Date Revised 24.09.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Tree peony black spot (TPBS), mainly caused by Alternaria suffruticosae, is a common leaf disease on the ornamental peony, which poses a great threat to the flower buds in the current year and the flowering quality in the next year. However, there is only one fungicide registered for the control of this disease, difenoconazole. In order to avoid the severe problem of pathogen resistance caused by long-term use of difenoconazole, it is necessary to screen more chemical fungicides for the prevention and control of TPBS. In this study, the biological activities of flutolanil, phenamacril, pyraclostrobin, and boscalid on mycelial growth, conidial germination, germ tube elongation, and sporulation quantity of A. suffruticosae were determined, and the field control efficacy was tested to evaluate the preventive and therapeutic activities. Difenoconazole was used as a control simultaneously. The results showed that pyraclostrobin had the strongest inhibitory effects on the conidial germination, mycelium growth, germ tube elongation, and sporulation quantity, with the average EC50 values of 0.0517, 0.5343, 0.0008, and 0.8068 μg/ml, respectively. The inhibitory activity of flutolanil on the four developmental stages of A. suffruticosae was weaker than that of the other three fungicides. Compared with flutolanil, boscalid, the other succinate dehydrogenase inhibitor, had more strong inhibitory effects on the mycelial growth and sporulation quantity, with the average EC50 values of 3.8603 and 1.4760 μg/ml, respectively. Phenamacril had a moderate inhibitory level and had more inhibitory activity on conidial germination and germ tube elongation, with the average EC50 values of 31.5349 and 5.2597 μg/ml, respectively. All of the four fungicides had no significant effects on the shape of spores and germ tubes. The control fungicide difenoconazole had the strongest inhibitory activity on mycelial growth, and the average EC50 value was only 0.3297 μg/ml. However, its inhibitory activity on the other three growth stages was not high. In the field trials, pyraclostrobin had high control efficacy on TPBS even at low concentrations, reaching a minimum of 62.6293%, which was higher than that of difenoconazole. The other three fungicides had higher control efficacy at high concentrations but decreased significantly at low concentrations. Considering the dosage and control efficacy, pyraclostrobin was the first choice for the control of TPBS. Pyraclostrobin is the preferred alternative fungicide to difenoconazole for the prevention and control of TPBS in production
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Alternaria suffruticosae
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| 650 |
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4 |
|a alternative fungicide
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| 650 |
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4 |
|a control efficacy
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| 650 |
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4 |
|a inhibitory activity
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| 650 |
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4 |
|a pyraclostrobin
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| 650 |
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4 |
|a tree peony black spot
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| 650 |
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7 |
|a Fungicides, Industrial
|2 NLM
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| 650 |
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7 |
|a pyrachlostrobin
|2 NLM
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| 650 |
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7 |
|a DJW8M9OX1H
|2 NLM
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| 650 |
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7 |
|a Strobilurins
|2 NLM
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| 650 |
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7 |
|a Dioxolanes
|2 NLM
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| 650 |
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7 |
|a 2-chloro-N-(4-chlorobiphenyl-2-yl)nicotinamide
|2 NLM
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| 650 |
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7 |
|a 32MS8ZRD1V
|2 NLM
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| 650 |
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7 |
|a difenoconazole
|2 NLM
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| 650 |
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7 |
|a D9612XCH4P
|2 NLM
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| 650 |
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7 |
|a Biphenyl Compounds
|2 NLM
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| 650 |
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7 |
|a Carbamates
|2 NLM
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| 650 |
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7 |
|a Pyridines
|2 NLM
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| 650 |
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7 |
|a 3-(difluoromethyl)-1-methyl-N-(1,2,3,4-tetrahydro-9-isopropyl-1,4-methanonaphthalen-5-yl)pyrazole-4-carboxamide
|2 NLM
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| 650 |
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7 |
|a Alanine
|2 NLM
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| 650 |
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7 |
|a OF5P57N2ZX
|2 NLM
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| 650 |
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7 |
|a Niacinamide
|2 NLM
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| 650 |
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7 |
|a 25X51I8RD4
|2 NLM
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| 650 |
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7 |
|a Norbornanes
|2 NLM
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| 650 |
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7 |
|a Pyrazoles
|2 NLM
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| 650 |
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7 |
|a Triazoles
|2 NLM
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| 700 |
1 |
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|a Guo, Yuwei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cheng, Zejun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Shaodan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yang, Yingying
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yihao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Shengming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hou, Xiaogai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Jianqiang
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 108(2024), 9 vom: 01. Sept., Seite 2830-2837
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
8 |
|g volume:108
|g year:2024
|g number:9
|g day:01
|g month:09
|g pages:2830-2837
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| 856 |
4 |
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|u http://dx.doi.org/10.1094/PDIS-01-24-0153-RE
|3 Volltext
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|a GBV_ILN_350
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|a AR
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|d 108
|j 2024
|e 9
|b 01
|c 09
|h 2830-2837
|