Analysis of the composition of thrips (Insecta: Thysanoptera) in spontaneous vegetation and crops associated with peanut in Argentina
; Zamar, María Inés ; de Breuil, Soledad 
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Fecha
12/2024
Editorial
Fundación Miguel Lillo
Revista
Acta Zoológica Lilloana
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ISSN
0065-1729
eISSN
1852-6098
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Inglés
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Resumen
El maní (Arachis hypogaea L.) es un cultivo de regiones tropicales y subtropicales. Argentina es un productor y exportador significativo; la provincia de Córdoba concentra alrededor del 84% de la superficie sembrada. Los trips representan una amenaza para el cultivo causando daños directos por alimentación e indirectos como transmisores de orthotospovirus. A pesar de la importancia de estos insectos y del cultivo, poco se conoce sobre la diversidad de trips en la vegetación circundante al cultivo de maní en la provincia de Córdoba. El objetivo de este trabajo fue ampliar el conocimiento sobre la diversidad de trips del entorno vegetal del cultivo de maní en campos ubicados en los departamentos Río Primero, Río Segundo y General Roca. Los muestreos se realizaron durante la campaña agrícola 2021-2022. Los trips adultos fueron recolectados de plantas espontáneas y cultivos vecinos al maní, y fueron preparados e identificados mediante claves específicas. En 14 especies vegetales, se recolectaron especímenes de Frankliniella schultzei (Trybom), Frankliniella gemina Bagnall, Caliothrips phaseoli (Hood), Frankliniella occidentalis (Pergande), Thrips tabaci (Lindeman), Frankliniella frumenti Moulton, Arorathrips mexicanus (Crawford), e individuos de los géneros Heterothrips y Hoplandrothrips. Frankliniella schultzei fue la especie más frecuente y abundante. Las plantas espontáneas y el cultivo de soja contenían especies de trips capaces de transmitir orthotospovirus. Este estudio informa por primera vez la presencia de F. schultzei en Gomphrena pulchella, además de dar a conocer, por primera vez, la diversidad de trips y su asociación con la vegetación espontánea en campos de maní de la provincia de Córdoba.
Peanuts (Arachis hypogaea L.) are a crop from tropical and subtropical regions. Argentina is a significant producer and exporter, with the province of Córdoba concentrating ca. 84% of the peanut-cultivated area in the country. Thrips pose a threat to the crop by causing direct damage through feeding and indirect damage as vectors of orthotospovirus. Despite the importance of these insects and the crop, little is known about the diversity of thrips in the vegetation surrounding peanut crops in Córdoba province. The aim of this study was to expand knowledge on thrips diversity in the plant environment around peanut crops in fields located in Río Primero, Río Segundo and General Roca counties (Córdoba, Argentina). Sampling was conducted during the 2021-2022 growing season. The adult thrips were collected from spontaneous plants and crops neighboring the peanut, and they were prepared and identified using specific keys. In 14 plant species, specimens of Frankliniella schultzei (Trybom), Frankliniella gemina Bagnall, Caliothrips phaseoli (Hood), Frankliniella occidentalis (Pergande), Thrips tabaci (Lindeman), Frankliniella frumenti Moulton, and Arorathrips mexicanus (Crawford) were recovered. Individuals from the genera Heterothrips and thrips were also collected. Frankliniella schultzei was the most frequent and abundant species. Spontaneous plants and soybean crops contained thrips species able to transmit orthotospovirus. This study reports for the first time the presence of F. schultzei in Gomphrena pulchella, as well as the first documentation of thrips diversity and their association with spontaneous vegetation in peanut fields in the province of Córdoba.
Peanuts (Arachis hypogaea L.) are a crop from tropical and subtropical regions. Argentina is a significant producer and exporter, with the province of Córdoba concentrating ca. 84% of the peanut-cultivated area in the country. Thrips pose a threat to the crop by causing direct damage through feeding and indirect damage as vectors of orthotospovirus. Despite the importance of these insects and the crop, little is known about the diversity of thrips in the vegetation surrounding peanut crops in Córdoba province. The aim of this study was to expand knowledge on thrips diversity in the plant environment around peanut crops in fields located in Río Primero, Río Segundo and General Roca counties (Córdoba, Argentina). Sampling was conducted during the 2021-2022 growing season. The adult thrips were collected from spontaneous plants and crops neighboring the peanut, and they were prepared and identified using specific keys. In 14 plant species, specimens of Frankliniella schultzei (Trybom), Frankliniella gemina Bagnall, Caliothrips phaseoli (Hood), Frankliniella occidentalis (Pergande), Thrips tabaci (Lindeman), Frankliniella frumenti Moulton, and Arorathrips mexicanus (Crawford) were recovered. Individuals from the genera Heterothrips and thrips were also collected. Frankliniella schultzei was the most frequent and abundant species. Spontaneous plants and soybean crops contained thrips species able to transmit orthotospovirus. This study reports for the first time the presence of F. schultzei in Gomphrena pulchella, as well as the first documentation of thrips diversity and their association with spontaneous vegetation in peanut fields in the province of Córdoba.
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