Artigo

Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons

Industrial or urban wastewater treatment lagoons accumulate nutrients, which allows the proliferation of Cx. quinquefasciatus, vector of the etiologic agent of filariasis, and of Cx. saltanensis, vector of the protozoan causing malaria in chickens. The goal of this study was to evaluate the effectiv...

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Autor principal: Zequi, João Antonio C.
Outros Autores: dos Santos, Fernando Pereira, Lopes, José
Grau: Artigo
Idioma: English
Publicado em: Revista Colombiana de Entomologia 2020
Assuntos:
Bacillus Thuringiensis Serovar Israelensis
Culex Pipiens Quinquefasciatus
Culicidae
Diptera
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/17696
id oai:repositorio:1-17696
recordtype dspace
spelling oai:repositorio:1-17696 Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons Control de Culex quinquefasciatus y Cx. saltanensis (Diptera, Culicidae) con Bacillus thuringiensis israelensis en lagunas de aguas residuales Zequi, João Antonio C. dos Santos, Fernando Pereira Lopes, José Bacillus Thuringiensis Serovar Israelensis Culex Pipiens Quinquefasciatus Culicidae Diptera Industrial or urban wastewater treatment lagoons accumulate nutrients, which allows the proliferation of Cx. quinquefasciatus, vector of the etiologic agent of filariasis, and of Cx. saltanensis, vector of the protozoan causing malaria in chickens. The goal of this study was to evaluate the effectiveness and persistence of Aquabac® XT 1,200 UTI/ mg, Teknar® 3,000 AAU/mg, and Vectobac® AS 1,200 UTI/mg; these products are liquid formulations whose active principles are crystals produced by Bacillus thuringiensis israelensis. Products were tested in two wastewater treatment lagoons of a meat cold-storage facility. The lagoons measured 1,419 m2 and 736 m2, and received concentrations of 1 and 2 litres/hectare of each product, with three replicates each. Water pH, conductivity, oxygen and temperature were measured at each collection. Cx. quinquefasciatus and Cx. saltanensis were found in both lagoons. One litre/hectare concentration controlled 70 to 80% of the larvae in 24 and 48 hours, respectively; two litres/hectare concentration showed the best results, controlling 86 to 99% of the immature mosquitoes, with the highest efficiency observed at 48 hours. None of the products affected water quality according to the abiotic parameters examined. As a result, all products tested efficiently controlled these Culicidae under the local breeding conditions but had low persistence, with seventh-day larval indexes being similar to those recorded before application of the products. Weekly applications are recommended. © 2014 The American Society for Cell Biology. 2020-06-15T21:48:50Z 2020-06-15T21:48:50Z 2014 Artigo https://repositorio.inpa.gov.br/handle/1/17696 en Volume 40, Número 1, Pags. 98-103 Restrito Revista Colombiana de Entomologia
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Bacillus Thuringiensis Serovar Israelensis
Culex Pipiens Quinquefasciatus
Culicidae
Diptera
spellingShingle Bacillus Thuringiensis Serovar Israelensis
Culex Pipiens Quinquefasciatus
Culicidae
Diptera
Zequi, João Antonio C.
Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons
topic_facet Bacillus Thuringiensis Serovar Israelensis
Culex Pipiens Quinquefasciatus
Culicidae
Diptera
description Industrial or urban wastewater treatment lagoons accumulate nutrients, which allows the proliferation of Cx. quinquefasciatus, vector of the etiologic agent of filariasis, and of Cx. saltanensis, vector of the protozoan causing malaria in chickens. The goal of this study was to evaluate the effectiveness and persistence of Aquabac® XT 1,200 UTI/ mg, Teknar® 3,000 AAU/mg, and Vectobac® AS 1,200 UTI/mg; these products are liquid formulations whose active principles are crystals produced by Bacillus thuringiensis israelensis. Products were tested in two wastewater treatment lagoons of a meat cold-storage facility. The lagoons measured 1,419 m2 and 736 m2, and received concentrations of 1 and 2 litres/hectare of each product, with three replicates each. Water pH, conductivity, oxygen and temperature were measured at each collection. Cx. quinquefasciatus and Cx. saltanensis were found in both lagoons. One litre/hectare concentration controlled 70 to 80% of the larvae in 24 and 48 hours, respectively; two litres/hectare concentration showed the best results, controlling 86 to 99% of the immature mosquitoes, with the highest efficiency observed at 48 hours. None of the products affected water quality according to the abiotic parameters examined. As a result, all products tested efficiently controlled these Culicidae under the local breeding conditions but had low persistence, with seventh-day larval indexes being similar to those recorded before application of the products. Weekly applications are recommended. © 2014 The American Society for Cell Biology.
format Artigo
author Zequi, João Antonio C.
author2 dos Santos, Fernando Pereira
Lopes, José
author2Str dos Santos, Fernando Pereira
Lopes, José
title Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons
title_short Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons
title_full Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons
title_fullStr Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons
title_full_unstemmed Control of Culex quinquefasciatus and Cx. saltanensis (Diptera: Culicidae) with Bacillus thuringiensis israelensis in wastewater treatment lagoons
title_sort control of culex quinquefasciatus and cx. saltanensis (diptera: culicidae) with bacillus thuringiensis israelensis in wastewater treatment lagoons
publisher Revista Colombiana de Entomologia
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/17696
_version_ 1787144902022266880
score 11.755432

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