Aedes aegypti and Aedes albopictus (Diptera: Culicidae): coexistence and susceptibility to temephos, in municipalities with occurrence of dengue and differentiated characteristics of urbanization

Prophiro, Josiane Somariva; Silva, Onilda Santos da; Luna, Jonny Edward Duque; Piccoli, Carla Fernanda; Κanis, Luiz Alberto; Navarro-Silva, Mário Antônio

doi:10.1590/s0037-86822011005000025

Cited by 36 publications

(23 citation statements)

References 18 publications

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“…Entretanto, em diferentes partes do mundo e no Brasil, tem sido registrada resistência desse díptero aos inseticidas convencionais (FURTADO et al, 2005;PROPHIRO et al, 2008;PORTO et al, 2008;PROPHIRO et al, 2011).…”

Section: Introductionunclassified

Efeito larvicida de óleos essenciais de plantas medicinais sobre larvas de Aedes aegypti L. (Diptera:Culicidae)

et al. 2017

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O Aedes aegypti L. é o mosquito mais relevante em termos de inseto de importância para a saúde pública no mundo, pois é transmissor de vírus que causam várias doenças, dentre elas a dengue. Na procura de larvicidas alternativos, os óleos essenciais extraídos de plantas medicinais têm demonstrado alta eficiência. Com isso, objetivou-se com avaliar o potencial larvicida de óleos essenciais, extraídos de espécies medicinais, sobre larvas de A. aegypti. O experimento foi realizado nos Laboratórios de Tecnologia de Produtos e de Entomologia Agrícola da Universidade Federal do Cariri (UFCA), na cidade de Crato, Ceará. Os óleos essenciais de alfazema (Hyptis suaveolens); gonçalo-alves (Astronium fraxinifolium0; alecrim de tabuleiro (Lippia Microphylla); mussambê (Cleome spinosa); marmeleiro (Croton sonderianus); aroeira (Myracrodruon urundeuva); velame (Croton heliotropiifolius) e candeeiro (Vanillosmopsis arborea) foram extraídos pelo método de hidrodestilação em aparelho tipo Clevenger. Os óleos foram emulsionados com Dimetilsulfóxido 2% (DMSO) e diluídos para a concentração de 100 ppm (partes por milhão), utilizando-se o delineamento inteiramente casualisado com nove tratamentos (consistindo nas soluções de 100 ppm de cada óleo mais a solução controle com água e DMSO) e quatro repetições, utilizando-se dez larvas para cada tratamento, sendo avaliado o número de larvas mortas. Observou-se que todos os óleos essenciais apresentaram efeito larvicida, porém os de candeeiro e de alfazema foram os que se destacaram.<pre>Abstract: Aedes aegypti L. is the most relevant mosquito in terms of public health importance of the world, because it’s the virus transmitter that causes many diseases, among this dengue. Looking for alternatives larvicides, the essential oils extracted from medicinal plants have demonstrated high efficiency. Thereby, it was objectified in this work to evaluate the larvicide potential of some essential oils, extracted from medicinal species, against A. aegypti larvae. The experiment was realized at the Laboratory of Products Technology and Agricultural Entomology of the Federal University of Cariri (UFCA), in city of Crato, CE. The essential oils alfazema (Hyptis suaveolens); gonçalo-alves (Astronium fraxinifolium0; alecrim de tabuleiro (Lippia Microphylla); mussambê (Cleome spinosa); marmeleiro (Croton sonderianus); aroeira (Myracrodruon urundeuva); velame (Croton heliotropiifolius) e candeeiro (Vanillosmopsis arborea) was extracted by hydrodistillation method in apparatus like Clevenger type. The oils were emulsified with dimethyl sulfoxide 2% (DMSO) and diluted to a concentration of 100 ppm (parts per million), utilizing design completely randomized with nine treatments (that consisted in the solutions of 100 ppm of each oil plus control solution with water and DMSO) and four repetitions, utilizing ten larvae for each treatment, being evaluated the number of dead larvae. Was calculated the mortality average by Tukey test with 5% of probability and the efficiency. It was observed that all the essential oils presented larvicide effect, but candeeiro and alfazema was the ones which was highlighted.</pre>

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Section: Introductionunclassified

Efeito larvicida de óleos essenciais de plantas medicinais sobre larvas de Aedes aegypti L. (Diptera:Culicidae)

et al. 2017

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“…This is appropriate since yearly changes in susceptibility of various mosquitoes species which have become resistant worldwide to chemical insecticides (Seccacini et al 2008;KerahHinzoumbé et al 2008;Marcombe et al 2009;Sarkar et al 2009;Yewhalaw et al 2011;Prophiro et al 2011) are reported.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of time toxicity, residual effect, and growth-inhibiting property of Carapa guianensis and Copaifera sp. in Aedes aegypti

et al. 2011

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Oils of Carapa guianensis and Copaifera spp. are well-known in the Amazonian region as natural insect repellents, and studies have reported their efficiency as larvicide against some mosquito species. However, toxicity persistence and effect on mosquito development have not yet been evaluated. Thus, the objective of this study was to evaluate the initial time of larvicidal activity, residual effect, and the effect of very low concentrations of these oils on Aedes aegypti. Different concentrations of the oils were used to evaluate the initial time of larval mortality and residual effect, as well as, the development of larvae, pupae, and adults. Results demonstrated that the lethal effect started mainly between the first 2 and 3 h of larvae exposure to oils, when using concentrations which ranged from 500 mg/L of C. guianensis and 90 mg/L of Copaifera sp. The toxic effect remained with total efficiency (100% mortality) until the sixth day for Copaifera sp. and 12th day for C. guianensis. When using sublethal dosages (ranging from 140 mg/L of C. guianensis to 26 mg/L of Copaifera sp.) mortality was observed after the larval molt. Also, imperfection of pupae and adult development and unsuccessful emergence of adults were observed. A product of botanical origin that could break the development of immature stage of mosquitoes and inhibit the emergence of adults should be essential in vector control. Thus, our results provide new information for a better understanding in using C. guianensis and Copaifera sp. oils with a potential to be used as a natural insecticide.

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“…Maruim, 30km from of the capital, had the highest number of eggs, 21,896, and Canindé de São Francisco, 213km from the capital, had the lowest number of eggs, 2,302 eggs. This difference in infestation level could be related to the demographic density of the cities, as cities near the capital had a high number of inhabitants per km 2 and most of these cities are interconnected. Crowded places often have a wide availability of containers with conditions suited to the development of mosquitoes and are devoid of geographical barriers.…”

Section: Discussionmentioning

confidence: 99%

“…Chemical insecticides are still widely used in vector control programs, despite selection for resistant populations of Aedes aegypti and Aedes albopictus, which threatens the effectiveness of control programs 2 .…”

Section: Introductionmentioning

confidence: 99%

Variation in temephos resistance in field populations of Aedes aegypti (Diptera: Culicidae) in the State of Sergipe, Northeast Brazil

Corte

Melo

Dolabella

et al. 2018

Rev. Soc. Bras. Med. Trop.

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Introduction:The organophosphate temephos was first used in Brazil in the 1960s for the control of Aedes aegypti. Because of its extensive and longstanding use worldwide, selection for mosquito populations resistant to the chemical has been observed not only in different regions of Brazil but also in several parts of the world. The objective of this study was to evaluate the susceptibility of Ae. aegypti to the organophosphate temephos, a larvicide used in vector control activities in Sergipe/Northeast Brazil. Methods: This study included mosquito populations from seven municipalities of Sergipe and was carried out from October 2010 to August 2011. Qualitative bioassays of diagnostic dose and dose responses were performed. The resistance ratio was calculated based on lethal concentrations for mosquitoes of the susceptible Rockefeller strain. Results: All populations were classified as resistant to temephos. The resistance ratio ranged from 22.2 to 297.9, the lowest being seen in Aracaju, a coastal area of the state, and the highest in Pinhão, a semi-arid region, 96.6km from Aracaju. Conclusions: High levels of temephos resistance were observed in the Ae. aegypti populations of Sergipe. The variation between regions indicates that there have been different regimes of insecticide use and also points to the potential of small cities to generate and spread insecticide resistance.

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Aedes aegypti and Aedes albopictus (Diptera: Culicidae): coexistence and susceptibility to temephos, in municipalities with occurrence of dengue and differentiated characteristics of urbanization

Cited by 36 publications

References 18 publications

Efeito larvicida de óleos essenciais de plantas medicinais sobre larvas de Aedes aegypti L. (Diptera:Culicidae)

Efeito larvicida de óleos essenciais de plantas medicinais sobre larvas de Aedes aegypti L. (Diptera:Culicidae)

Evaluation of time toxicity, residual effect, and growth-inhibiting property of Carapa guianensis and Copaifera sp. in Aedes aegypti

Variation in temephos resistance in field populations of Aedes aegypti (Diptera: Culicidae) in the State of Sergipe, Northeast Brazil

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