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Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy

Quantitative estimates of vector populations and their infectivity in the wild and in cultivated compartments of agroecosystems have been carried out to elucidate the role of the wild compartment in the epidemiology of Flavescence dorée (FD). Seven sites were selected for the investigations in the P...

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Autores principales: Ripamonti, Matteo, Pegoraro, Mattia, Rossi, Marika, Bodino, Nicola, Beal, Dylan, Panero, Loretta, Marzachì, Cristina, Bosco, Domenico
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7290324/
https://www.ncbi.nlm.nih.gov/pubmed/32413986
http://dx.doi.org/10.3390/insects11050301
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author Ripamonti, Matteo
Pegoraro, Mattia
Rossi, Marika
Bodino, Nicola
Beal, Dylan
Panero, Loretta
Marzachì, Cristina
Bosco, Domenico
author_facet Ripamonti, Matteo
Pegoraro, Mattia
Rossi, Marika
Bodino, Nicola
Beal, Dylan
Panero, Loretta
Marzachì, Cristina
Bosco, Domenico
author_sort Ripamonti, Matteo
collection PubMed
description Quantitative estimates of vector populations and their infectivity in the wild and in cultivated compartments of agroecosystems have been carried out to elucidate the role of the wild compartment in the epidemiology of Flavescence dorée (FD). Seven sites were selected for the investigations in the Piedmont Region of Italy. They were characterized by a high variety of agricultural and ecological landscape features, and included a vineyard surrounded by wild vegetation. In order to describe abundance and prevalence of FD-infected vectors in the cultivated and wild compartments of the vineyard agroecosystem, adults of Scaphoideus titanus were collected by yellow sticky traps inside and outside the vineyard over the period July 10th–September 9th, 2015. They were counted and singly analyzed for the presence of FD phytoplasmas by PCR. Multifactorial correlations among vector population level, prevalence of infected insects inside and outside the vineyards, disease prevalence in cultivated and wild Vitis plants, and location of wild Vitis plants with respect to the vineyard were analyzed. Abundance of S. titanus adults significantly decreased from the end of July onwards, particularly inside the vineyard (average range 22.7 ± 2.5 insects/trap). Percentage of FD-positive S. titanus was significantly higher outside the vineyard (up to 48% on average) compared to inside the vineyard (up to 34% on average), and increased during the season in both compartments.
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spelling pubmed-72903242020-06-15 Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy Ripamonti, Matteo Pegoraro, Mattia Rossi, Marika Bodino, Nicola Beal, Dylan Panero, Loretta Marzachì, Cristina Bosco, Domenico Insects Article Quantitative estimates of vector populations and their infectivity in the wild and in cultivated compartments of agroecosystems have been carried out to elucidate the role of the wild compartment in the epidemiology of Flavescence dorée (FD). Seven sites were selected for the investigations in the Piedmont Region of Italy. They were characterized by a high variety of agricultural and ecological landscape features, and included a vineyard surrounded by wild vegetation. In order to describe abundance and prevalence of FD-infected vectors in the cultivated and wild compartments of the vineyard agroecosystem, adults of Scaphoideus titanus were collected by yellow sticky traps inside and outside the vineyard over the period July 10th–September 9th, 2015. They were counted and singly analyzed for the presence of FD phytoplasmas by PCR. Multifactorial correlations among vector population level, prevalence of infected insects inside and outside the vineyards, disease prevalence in cultivated and wild Vitis plants, and location of wild Vitis plants with respect to the vineyard were analyzed. Abundance of S. titanus adults significantly decreased from the end of July onwards, particularly inside the vineyard (average range 22.7 ± 2.5 insects/trap). Percentage of FD-positive S. titanus was significantly higher outside the vineyard (up to 48% on average) compared to inside the vineyard (up to 34% on average), and increased during the season in both compartments. MDPI 2020-05-13 /pmc/articles/PMC7290324/ /pubmed/32413986 http://dx.doi.org/10.3390/insects11050301 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ripamonti, Matteo
Pegoraro, Mattia
Rossi, Marika
Bodino, Nicola
Beal, Dylan
Panero, Loretta
Marzachì, Cristina
Bosco, Domenico
Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy
title Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy
title_full Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy
title_fullStr Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy
title_full_unstemmed Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy
title_short Prevalence of Flavescence Dorée Phytoplasma-Infected Scaphoideus titanus in Different Vineyard Agroecosystems of Northwestern Italy
title_sort prevalence of flavescence dorée phytoplasma-infected scaphoideus titanus in different vineyard agroecosystems of northwestern italy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7290324/
https://www.ncbi.nlm.nih.gov/pubmed/32413986
http://dx.doi.org/10.3390/insects11050301
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