scholarly journals Eficácia de Ovitrampas com Diferentes Atrativos na Vigilância e Controle de Aedes

2016 ◽  
Vol 9 (1) ◽  
pp. 51-55 ◽  
Author(s):  
Priscila Aparecida Claro Depoli ◽  
João Antonio Cyrino Zequi ◽  
Kauani Larissa Campana Nascimento ◽  
José Lopes
Keyword(s):  
Bacillus Thuringiensis ◽  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Zika Virus ◽  
Secondary Forest ◽  
Oviposition Preference ◽  
State University ◽  
Monitoring And Control ◽  
Bacillus Thuringiensis Israelensis ◽  
And Control

Resumo. Aedes aegypti (Linnaeus)é o vetor dos vírus dengue, febre amarela urbana e Zika vírus nas Américas. Aedes albopictus (Skuse)tem maior ocorrência em mata nativa e secundária junto às populações. Esses mosquitos veiculam também o vírus chikungunya. O objetivo desse estudo foi avaliar a eficácia e preferência de oviposição em armadilhas ovitrampas, instaladas em locais abrigados com diferentes misturas atrativas, sob condições distintas de luminosidade e fluxo de pessoas para ser usada na vigilância e controle de Aedes spp. Foram instaladas 75 armadilhas no campus da Universidade Estadual de Londrina Paraná, distribuídas em três centros de estudo: Centro de Ciências Biológicas (CCB), Biblioteca Central (BC) e Centro de Estudos Sociais Aplicados (CESA), que receberam cada um, 25 ovitrampas, no período de Março a Junho de 2012. As armadilhas receberam cinco diferentes misturas atrativas: infusão de água fenada (Iaf), água destilada, (Iaf) + Bacillus thuringiensis var. israelensis Berliner, (Iaf) + organofosforado Temephos, (Iaf) + regulador de crescimento Diflubenzuron. Todo o experimento foi realizado em 5 réplicas. Coletou-se 4.774 ovos. No (CCB) foram 436 ovos (9,23%) com Índice de Positividade de Ovitrampas (IPO) = 43,08% e Índice de Densidade de Ovos (IDO) = 15,75. No (CESA) 638 ovos (13,35%), IPO = 58,46% e IDO = 16,79. Na (BC) 3.700 ovos (77,42%), IPO = 83,08% e IDO = 68,51. Não ocorreram diferenças significativas pelo teste de Kruskal-Wallis (p = 0,92) para os diferentes atrativos nas ovitrampas. Atrativos e produtos seletivos para o controle de Aedes spp. na ovitrampa não mostraram prejuízos para oviposição.Effectiveness of Ovitraps with Different Attractives in the Monitoring and Control of AedesAbstract. Aedes aegypti (Linnaeus) is the vector of dengue viruses, urban yellow fever and Zika virus in the Americas. Aedes albopictus (Skuse) has higher incidence in native and secondary forest next the populations. These mosquitoes also convey the chikungunya virus. The aim of this study was to evaluate the efficacy and oviposition preference in ovitraps traps installed in sheltered places with different attractive mixtures, under different lighting conditions and flow of people to be used in monitoring and control of Aedes spp. Were installed 75 traps on campus of the State University of Londrina-Paraná, distributed in three study centers: Centre for Biological Sciences (CCB), Central Library (CL) and Applied Social Studies Center (ASSC), which each received 25 ovitraps in the period from March to June 2012. The traps received five different attractive mixtures: infusion of water made into hay (Iaf), distilled water (Iaf) + Bacillus thuringiensis israelensis Berliner (Iaf) + organophosphate temephos, (Iaf) + growth regulator Diflubenzuron. The experiment was carried out in 5 replicates. Collected: 4,774 eggs. On (CCB) were 436 eggs (9.23%) with Positivity Index of Ovitraps (PIO) = 43.08%, and Eggs Density Index (EDI) = 15.75. On (ASSC) 638 eggs (13.35%), PIO = 58.46% and EDI = 16.79. On (CL) 3,700 eggs (77.42%), PIO = 83.08% and EDI = 68.51. There were no significant differences by Kruskal-Wallis test (p = 0.92) for the different attractive on ovitraps. Attractive and selective products for Aedes spp. control in egg trap do not show damage to oviposition.

scholarly journals New traps for the capture of Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) (Diptera: Culicidae) eggs and adults

2020 ◽  
Author(s):  
Karina Rossi da Silva ◽  
William Ribeiro da Silva ◽  
Bianca Piraccini Silva ◽  
Adriano Nobre Arcos ◽  
Francisco A. da Silva Ferreira ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
High Efficiency ◽  
Low Cost ◽  
High Sensitivity ◽  
Ease Of Use ◽  
Monitoring And Control ◽  
Density Index ◽  
Egg Density ◽  
And Control

AbstractThe control of arboviruses carried by Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) can be performed with tools that monitor and reduce the circulation of these vectors. Therefore, the efficiency of four types of traps in capturing A. aegypti and A. albopictus eggs and adults, with the biological product Vectobac WG®, was evaluated in the field. For this, 20 traps were installed in two locations, which were in the South (Londrina, Paraná) and North (Manaus, Amazonas) Regions of Brazil, from March to April 2017 and January to February 2018, respectively. The UELtrap-E and UELtrap-EA traps captured A. aegypti and A. albopictus eggs: 1703/1866 eggs in Londrina, and 10268/2149 eggs in Manaus, respectively, and presented high ovitraps positivity index (OPI) values (averages: 100%/100% in Londrina, and 100%/96% in Manaus, respectively); and high egg density index (EDI) values (averages: 68/75 in Londrina, and 411/89 in Manaus, respectively), so they had statistically superior efficiency to that of the CRtrap-E and CRtrap-EA traps in both regions, that captured less eggs and adults: 96/69 eggs in Londrina, and 1091/510 eggs in Manaus, respectively. Also presented lower OPI values (averages: 28%/4% in Londrina, and 88%/60% in Manaus, respectively); and lower EDI values (averages: 10.5/9 in Londrina, and 47/30 in Manaus, respectively). The capture ratios of Aedes adults in the UELtrap-EA and CRtrap-EA traps in Londrina and Manaus were 53.3%/29.5% and 0%/9.8%, respectively. UELtrap-E and UELtrap-EA can be adopted as efficient tools for Aedes monitoring due to their high sensitivity, low cost and ease of use.Author summaryAedes aegypti and Aedes albopictus are species of mosquitoes responsible for the transmission of several arboviruses that cause infections worldwide. However, there are still no effective and safe vaccines or medications to prevent or treat arboviruses transmitted by these vectors, except for yellow fever. Moreover, current methodologies for monitoring and controlling A. aegypti and A. albopictus are not fully effective, as evidenced by the increasing cases of the arbovirus transmitted by these mosquitoes or have incompatible costs with the socioeconomic conditions of a large number of people. Thus, the traps tested in this study can be used as more effective and economical tools for monitoring and controlling A. aegypti and A. albopictus, since they are made with low cost material and they showed high efficiency in the capture of eggs, evidenced by the high values of ovitraps positive index and eggs density index, besides that one of the models captured Aedes spp. adults in both regions where they were tested. Therefore, the traps have potential for reducing Aedes spp. eggs and adults in the environment and sensibility for determining the local infestation index, which can be reconciled with official government strategies for more accurate vector monitoring and control actions.

scholarly journals Effects of Color and Perforated Lid on Ovitrap Preference of Aedes aegypti and Aedes albopictus

2020 ◽  
Vol 36 (4) ◽  
pp. 240-244
Author(s):  
Takashi Tsunoda ◽  
Dung Thi Nguyen ◽  
Trang Vi Quynh
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Mosquito Species ◽  
Oviposition Preference ◽  
Sampling Efficiency ◽  
Aedes Mosquito ◽  
Mosquito Surveillance ◽  
And Control

ABSTRACT The shape and color of an ovitrap affect the sampling efficiency of mosquitoes. We examined the effect of perforated lids of different colored cups on the preference of Aedes aegypti and Ae. albopictus for oviposition containers. The mosquito species were collected from Tuy Hoa City, Phu Yen Province, Vietnam in April 2016. Females of both species laid eggs in cups without a lid in the order of black, red, and green. However, the number of eggs laid by both species was not different between the black cups with a perforated lid and those without a lid. Aedes aegypti females laid more eggs in red cups with a perforated lid than cups without a lid. Green cups with a perforated lid were not preferred by Ae. aegypti and Ae. albopictus. Our results showed that the effect of perforated lids on oviposition preference was dependent on cup color and that it differed between the mosquito species. Out study provides valuable insights for the development of more effective ovitraps for Aedes mosquito surveillance and control.

scholarly journals Evaluation of a new formulation of Bacillus thuringiensis israelensis

2010 ◽  
Vol 70 (4) ◽  
pp. 1109-1113 ◽  
Author(s):  
J. Lopes ◽  
OMN. Arantes ◽  
MA. Cenci
Keyword(s):  
Bacillus Thuringiensis ◽  
Aedes Aegypti ◽  
Culex Quinquefasciatus ◽  
Fourth Instar ◽  
State University ◽  
Local Production ◽  
Liquid Formulation ◽  
Bacillus Thuringiensis Israelensis ◽  
Commercial Products ◽  
New Formulation

The aim of this study was to determine the potency (ITU) and efficacy of a liquid formulation of Bacillus thuringiensis israelensis developed by the State University of Londrina named BioUel, against early fourth instar larvae of Aedes aegypti and Culex quinquefasciatus. The ITU/mg of BioUel was 960, the LC50 was of 0.271 (± 0.39) ppm, and the LC95 was 0.634 (± 0.099) ppm, in larvae of C. quinquefasciatus. In A. aegypti larvae, LC50 was 0.332 (± 0.042) ppm and LC95 was 0.694 (± 0.073) ppm. The ITU level of BioUel and its control results were similar to most commercial products tested. Stability was of approximately 90 days, which allows for local production.

scholarly journals Monitoring and Control of Aedes albopictus, a Vector of Zika Virus, Near Residences of Imported Zika Virus Patients during 2016 in South Korea

2018 ◽  
Vol 98 (1) ◽  
pp. 166-172 ◽  
Author(s):  
Kyu-Sik Chang ◽  
Gi-Hun Kim ◽  
Young-Ran Ha ◽  
Eun Kyeong Jeong ◽  
Heung-Chul Kim ◽  
...  
Keyword(s):  
South Korea ◽  
Aedes Albopictus ◽  
Zika Virus ◽  
Monitoring And Control ◽  
And Control

RELAÇÃO DE CAUSALIDADE ENTRE A FEBRE DA ZIKA E MICROCEFALIA NO BRASIL: REVISÃO INTEGRATIVA

2020 ◽  
Vol 42 (3) ◽  
Author(s):  
André Emanuel Dantas Mercês ◽  
Angela de Souza Cajuhi ◽  
Lorena Conceição Souza dos Santos ◽  
Rudval Souza da Silva ◽  
Cleuma Sueli Santos Suto ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Aedes Albopictus ◽  
Zika Virus ◽  
Electronic Library

O Zika vírus é um arbovírus transmitido pela picada dos mosquitos Aedes aegypti e Aedes albopictus infectados e apresentam como principais manifestações clínicas: febre aguda, exantema, prurido e conjuntivite. Em 2015 causou uma epidemia no Brasil, desencadeando casos de microcefalia em bebês cujas gestantes tiveram a febre da Zika. O Nordeste notificou o maior número de casos. Objetivou-se identificar, a partir de uma revisão integrativa, a relação entre a febre da Zika e a microcefalia. Trata-se de revisão integrativa, realizada a partir de buscas desenvolvidas nas bases de dados da Biblioteca Virtual em Saúde (BVS) e da Scientific Electronic Library Online (SciELO) com publicações dos anos de 2015 e 2016, idiomas português e inglês. Foram encontradas 191 publicações, as quais passaram por um processo de leitura e análise quanto ao atendimento do objetivo e aplicação dos critérios de inclusão. Restaram oito publicações que integraram o corpus desta revisão. Os resultados apontam para uma relação de causa e efeito entre o contato das gestantes com o Zika vírus e o desenvolvimento de microcefalia em seus bebês. Necessita-se de maiores evidências que demonstrem os reais fatores envolvidos nesse processo, como os genéticos, ambientais e até mesmo interferência de outras infecções. Palavras-chave: Zika vírus. Microcefalia. Aplicações da epidemiologia.

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