Culex Quinquefasciatus
Mostrando 13-24 de 189 artigos, teses e dissertações.
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13. Assessment of the correlation between wing size and body weight in captive Culex quinquefasciatus
Abstract: INTRODUCTION: Mass production of mosquitoes under laboratory conditions allows implementing methods to control vector mosquitoes. Colony development depends on mosquito size and weight. Body size can be estimated from its correlation with wing size, whereas weight is more difficult to determine. Our goal was to test whether wing size can predict
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-08
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14. Larvicidal efficiency of the mushroom Amanitamuscaria (Agaricales, Amanitaceae) against the mosquito Culexquinquefasciatus (Diptera, Culicidae)
Abstract: INTRODUCTION: We report the larvicidal activity of two formulations from Amanita muscariaagainst Culex quinquefasciatus, as well as the viability of the aqueous extract after storage. METHODS The larvicidal activity of aqueous extract and powder from A. muscaria, and the viability of the aqueous extract after storage, were evaluated. RESULTS T
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-02
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15. Mayaro virus and dengue virus 1 and 4 natural infection in culicids from Cuiabá, state of Mato Grosso, Brazil
This study aimed to verify the diversity of Culicidae species and their frequency of infection with flaviviruses and alphaviruses in Cuiabá, state of Mato Grosso, Brazil. Mosquitoes were captured with Nasci aspirators and hand net in 200 census tracts, identified alive at species level and pooled in one-20 (11,090 mosquitoes, 14 species). Female pools (n =
Mem. Inst. Oswaldo Cruz. Publicado em: 2016-01
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16. RESPONSE OF Culex quinquefasciatus LARVAE TO THREE INSECTICIDES
Rev. Inst. Med. trop. S. Paulo. Publicado em: 2015-12
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17. Larvicidal activity of oils, fatty acids, and methyl esters from ripe and unripe fruit of Solanum lycocarpum (Solanaceae) against the vector Culex quinquefasciatus (Diptera: Culicidae)
ABSTRACTINTRODUCTION:The larvicidal activity of oils, fatty acids, and methyl esters of Solanum lycocarpum fruit against Culex quinquefasciatus is unknown.METHODS:The larvicidal activity of samples of ripe and unripe fruit from S. lycocarpum was evaluated against third and fourth instar larvae of C. quinquefasciatus .RESULTS:The oils, fatty acids, and methyl
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-10
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18. Detection of Oropouche virus segment S in patients and inCulex quinquefasciatus in the state of Mato Grosso, Brazil
This study aimed to investigate the circulation of Orthobunyavirus species in the state of Mato Grosso (MT) Brazil. During a dengue outbreak in 2011/2012, 529 serum samples were collected from patients with acute febrile illness with symptoms for up to five days and 387 pools of female Culex quinquefasciatuscaptured in 2013 were subjected to nested-reverse t
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-09
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19. Vírus da encefalite de Saint Louis em Mato Grosso, Centro-Oeste, Brasil
O vírus da dengue (DENV), frequentemente envolvido em epidemias de grande proporção, e o vírus da febre amarela (YFV), responsável por surtos silvestres esporádicos, são considerados os flavivírus circulantes mais importantes no Brasil. Por este motivo, o diagnóstico laboratorial de doença febril aguda indiferenciada durante períodos epidêmicos �
Rev. Inst. Med. trop. S. Paulo. Publicado em: 2015-06
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20. Bioefficacy of flindersine against Helicoverpa armigera Hübner, Spodoptera litura Fabricius, Anopheles stephensis Liston. and Culex quinquefasciatus Say.
Flindersine, an alkaloid isolated from Toddalia asiatica, was evaluated for their antifeedant, larvicidal and growth inhibitory activities against Helicoverpa armigera, Spodoptera litura and larvicidal activity against vector mosquitoes Anopheles stephensi and Culex quinquefasciatus. For this, leaf disc no choice method was used for agricultural pests; larvi
Braz. arch. biol. technol.. Publicado em: 01/05/2015
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21. Immature Aedes mosquitoes colonize Culex quinquefasciatus breeding sites in neighborhoods in the municipality of Olinda, State of Pernambuco
Introduction The present study shows the colonization of Aedes mosquitoes in breeding sites specific for Culex quinquefasciatus in neighborhoods in the municipality of Olinda. Methods
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-12
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22. Larvicidal activity of the methanol extract and fractions of the green fruits of Solanum lycocarpum(Solanaceae) against the vector Culex quinquefasciatus (Diptera: Culicidae)
IntroductionThe larvicidal activity of Solanum lycocarpumagainst Culex quinquefasciatus is unknown.MethodsWe evaluated the larvicidal activity of extracts of the green fruits of Solanum lycocarpum against third and fourth instar larvae of C. quinquefasciatus.ResultsDichloromethane and ethyl acetate fractions showed the greatest larvicidal effect at 200mg/L (
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-10
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23. Captura de mosquitos antropofílicos (Diptera, Culicidae) em uma área urbana da região oeste da Bahia, Brasil
A região oeste da Bahia passa por acelerado processo de desenvolvimento agrícola, o que tem gerado problemas de infraestrutura nos municípios. A falta de saneamento básico e de coleta dos resíduos são alguns desses problemas, os quais têm papel importante no aumento de criadouros disponíveis aos culicídeos. Assim, considerando as possibilidades de c
Iheringia, Sér. Zool.. Publicado em: 2014-03
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24. Virulence variation among epidemic and non-epidemic strains of Saint Louis encephalitis virus circulating in Argentina
Saint Louis encephalitis virus caused an outbreak of febrile illness and encephalitis cases in Córdoba, Argentina, in 2005. During this outbreak, the strain CbaAr-4005 was isolated from Culex quinquefasciatus mosquitoes. We hypothesised that this epidemic variant would be more virulent in a mouse model than two other non-epidemic strains (78V-6507 and CorAn
Mem. Inst. Oswaldo Cruz. Publicado em: 2014-02