Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, Brazil

The South American sogata, Tagosodes orizicolus (Muir) (Hemiptera: Delphacidae), population dynamics in irrigated rice ecosystem in Santa Catarina State, Brazil, is still unknown. This makes difficult the overall planning of integrated pest management measures to be implemented in farms. The aim of...

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Main Author: Eduardo Rodrigues Hickel
Format: Article
Language:English
Published: Selva Andina Research Society 2024-11-01
Series:Journal of the Selva Andina Biosphere
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Online Access:http://www.scielo.org.bo/scielo.php?script=sci_arttext&pid=S2308-38592024000200045&lng=es&nrm=iso&tlng=pt
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author Eduardo Rodrigues Hickel
author_facet Eduardo Rodrigues Hickel
author_sort Eduardo Rodrigues Hickel
collection DOAJ
description The South American sogata, Tagosodes orizicolus (Muir) (Hemiptera: Delphacidae), population dynamics in irrigated rice ecosystem in Santa Catarina State, Brazil, is still unknown. This makes difficult the overall planning of integrated pest management measures to be implemented in farms. The aim of this study was monitoring the sogata incidence to know its population dynamics and its periods of greatest occurrence in rice fields. Weekly sweep net samplings were carried out in the following environments: rice field, fallow land and pasture. Each sample consisted of 30 pendulum strokes of the net, taken at five points in each environment. Concomitantly, light traps were set in irrigated rice fields at Epagri Experimental Station, in Itajaí, SC. From September 2020 to March 2024 the light traps were turned on, from 4pm to 9am once a week, except from April to August of each year when they remained turned off. The population dynamics of T. orizicolus in irrigated rice fields was characterized by a low number of individuals between October and December and a subsequent continuous increase of individual’s number from January onwards. In the off-season, the sogata population remains in areas with rice regrowth. In Itajaí, Santa Catarina, the largest populations in irrigated rice fields occurred in March.
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series Journal of the Selva Andina Biosphere
spelling doaj-art-1326b9dff782452ba7a1956fbb29e1e52025-08-20T03:40:25ZengSelva Andina Research SocietyJournal of the Selva Andina Biosphere2308-38672308-38592024-11-011224553doi:10.36610/j.jsab.2024.120200045Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, BrazilEduardo Rodrigues Hickel0https://orcid.org/0000-0002-8580-2218Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri). Estação Experimental de Itajaí. Caixa Postal 277. 88301-970. Tel: + 47 33986360. Itajaí, SC, Brasil.The South American sogata, Tagosodes orizicolus (Muir) (Hemiptera: Delphacidae), population dynamics in irrigated rice ecosystem in Santa Catarina State, Brazil, is still unknown. This makes difficult the overall planning of integrated pest management measures to be implemented in farms. The aim of this study was monitoring the sogata incidence to know its population dynamics and its periods of greatest occurrence in rice fields. Weekly sweep net samplings were carried out in the following environments: rice field, fallow land and pasture. Each sample consisted of 30 pendulum strokes of the net, taken at five points in each environment. Concomitantly, light traps were set in irrigated rice fields at Epagri Experimental Station, in Itajaí, SC. From September 2020 to March 2024 the light traps were turned on, from 4pm to 9am once a week, except from April to August of each year when they remained turned off. The population dynamics of T. orizicolus in irrigated rice fields was characterized by a low number of individuals between October and December and a subsequent continuous increase of individual’s number from January onwards. In the off-season, the sogata population remains in areas with rice regrowth. In Itajaí, Santa Catarina, the largest populations in irrigated rice fields occurred in March.http://www.scielo.org.bo/scielo.php?script=sci_arttext&pid=S2308-38592024000200045&lng=es&nrm=iso&tlng=ptecology; insect population; integrated pest management; oryza sativa
spellingShingle Eduardo Rodrigues Hickel
Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, Brazil
Journal of the Selva Andina Biosphere
ecology; insect population; integrated pest management; oryza sativa
title Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, Brazil
title_full Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, Brazil
title_fullStr Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, Brazil
title_full_unstemmed Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, Brazil
title_short Population dynamics of sogata, Tagosodes orizicolus (Muir) (Hemiptera: Dephacidae), in irrigated rice ecosystem in Santa Catarina State, Brazil
title_sort population dynamics of sogata tagosodes orizicolus muir hemiptera dephacidae in irrigated rice ecosystem in santa catarina state brazil
topic ecology; insect population; integrated pest management; oryza sativa
url http://www.scielo.org.bo/scielo.php?script=sci_arttext&pid=S2308-38592024000200045&lng=es&nrm=iso&tlng=pt
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