Eficacia del Fipronil en el control del ciclo peridomiciliario de Triatoma infestans en un área con resistencia a la Deltametrina

Gentile, Alberto; Sartini, José L.; Campo, María C.; Sánchez, Juan F. Plaza

doi:10.1590/s0102-311x2004000500018

Cited by 12 publications

(14 citation statements)

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“…Some results are contradictory even with the same insecticide (e.g. fipronil) (Gentile et al, 2004;Gürtler et al, 2009), however, in general the studies showed some degree of effectiveness, although with remarkable variation in residual effect, showing its potential as complementary tool to the traditional spray mainly in highly infested peridomestic environments. The insecticidal paints are other promising alternative tools for the control of triatominae including the resistant foci.…”

Section: Resistance Managementmentioning

confidence: 96%

“…pour-on, spot-on, collars) under different experimental conditions (e.g. laboratory, semi-field, field) (Gentile et al, 2004;Reithinger et al, 2005Reithinger et al, , 2006Gürtler et al, 2009;Amelotti et al, 2009aAmelotti et al, , 2012Juan et al, 2013;Dadé et al, 2014;Carvajal et al, 2014). Some results are contradictory even with the same insecticide (e.g.…”

Section: Resistance Managementmentioning

confidence: 99%

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Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

2015

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Section: Resistance Managementmentioning

confidence: 96%

Section: Resistance Managementmentioning

confidence: 99%

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

2015

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“…infestans exposed to each host was estimated to be 100% and 89% effective at 7 and 30 days post-treatment, respectively. 14 In the same study, a topical application of fipronil pour-on on four dogs, one cat and two chickens residing in an infested rural house was considered to have reduced peridomestic bug densities by 65% (relative to pre-treatment bug densities) at 30 days post-treatment at the end of fall (i.e. June 2003).…”

Section: Introductionmentioning

confidence: 99%

Effects of topical application of fipronil spot-on on dogs against the Chagas disease vector Triatoma infestans

Gürtler

Ceballos

Stariolo³

et al. 2009

Transactions of the Royal Society of Tropical Medicine and Hygi

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Summary We assessed the insecticidal effects of fipronil spot-on applied to experimental dogs on the blood-feeding success and other vital parameters of the Trypanosoma cruzi vector Triatoma infestans. In the first trial, the cumulative mortality of 30 third or fourth instar nymphs exposed to eight fipronil-treated dogs differed significantly from those exposed to untreated dogs at 1 week post-treatment, but not at baseline or at 2–6 weeks post-treatment. In the second trial, the effects of multiple exposures to fipronil-treated dogs on bug population dynamics were assessed. A population of 80–84 bugs of various life stages were allowed to colonize eight closed experimental huts, and then exposed twice weekly to control or treated dogs over a period of 110 days and censused at monthly intervals. Throughout the trial, multiple exposure to fipronil did not significantly affect bug population size, fecundity, hatching, molting, survival, blood-feeding success and degree of engorgement. Only when engorgement was taken to include only fully fed bugs, did fipronil significantly reduce their degree of engorgement relative to bugs exposed to control dogs. We conclude that at tested dosages fipronil spot-on would have little effect in controlling (peri)domestic Tri. infestans or protecting dogs from contact with the bugs.

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“…The intense movement of ants treated with fipronil was typical of the effects presented in cases of contamination by fipronil: a system blocker of the passage of chloride ions through the chloride channels that are regulated by gamma-aminobutyric acid (GABA), which, in doses high enough, causes death by hyperexcitement (GeNtile et al 2004). …”

Section: Discussionmentioning

confidence: 99%

Exposure of Workers of Ectatomma brunneum Smith (Hymenoptera: Formicidae: Ectatomminae) to ant Baits Containing Different Active Ingredients under Laboratory Conditions

Tofolo¹,

Giannotti²,

Pizano³

2015

EntomoBrasilis

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Abstract. This work evaluated the short-range mortality of workers of Ectatomma brunneum Smith when exposed to ant baits in laboratory, in order to verify if the attractiveness of this non-target species by ant baits intended to be used in the control of leaf-cutting (target) ants might be harmful to the population studied. Workers were exposed in laboratory for 48 hours to ant baits used in pastures to control the leaf-cutting ants Atta capiguara Gonçalves (Formicidae: Attini) and Atta bisphaerica Forel (Formicidae: Attini), the major species that cause damage to pastures. The following formulations of granular bait ant-killer active ingredients sulfluramid 0.3%, fipronil 0.003% and chlorpyrifos 0.45% were used. The experiment outline was composed by groups of 30 workers exposed to 10g of moistened ant baits, using three repetitions. Daily follow-up on mortality was performed for 20 days, recording dead and intoxicated workers. The control group received only 10g of moistened citric pulp. From the results achieved, survival curves as a function of observation time were plotted using the Kaplan-Meier method and compared applying the Logrank test (nonparametric) at 5% significance level. The results revealed that the three active ingredients tested were toxic and the population reduced 35.56% in the treatment with chlorpyrifos, 31.11% with sulfluramid and 30% with fipronil.Keywords: Chlorpiryfos; Fipronil; Poneromorphs; Sulfluramid; Toxicity. Exposição de Operárias de Ectatomma brunneum Smith (Hymenoptera: Formicidae: Ectatomminae) a Iscas Formicidas Contendo Diferentes Ingredientes Ativos em Condições de LaboratórioResumo. Este trabalho avaliou a mortalidade a curto prazo de operárias de Ectatomma brunneum Smith expostas a iscas formicidas em laboratório, a fim de verificar se a capacidade de atração desta espécie não-alvo a formicidas destinadas ao controle de formigas cortadeiras (alvo) pode ser prejudicial para a população estudada. As operárias foram expostas em laboratório por 48 horas a iscas formicidas utilizadas em pastagens para controlar as formigas cortadeiras Atta capiguara Gonçalves (Formicidae: Attini) e Atta bisphaerica Forel (Formicidae: Attini), as principais espécies que causam danos às pastagens. Foram utilizados os seguintes ingredientes ativos: sulfluramida 0,3%, fipronil 0,003% e clorpirifos 0,45%. O experimento foi composto por grupos de 30 operárias expostas a 10g de formicidas, usando três repetições. Foi realizado o acompanhamento diário da mortalidade durante 20 dias, registrando-se o número de operárias mortas e intoxicadas. O grupo controle recebeu apenas 10g de polpa cítrica umedecida. A partir de resultados obtidos, as curvas de sobrevivência em função do tempo de observação foram plotadas usando o método de Kaplan-Meier, e comparadas com aplicação do Logrank test (teste não-paramétrico) em nível de significância de 5%. Os resultados revelaram que os três ingredientes ativos testados foram tóxicos e a população reduzida em 35.56% no tratamento com clorpirifós, 31,11% com sulflurami...

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Eficacia del Fipronil en el control del ciclo peridomiciliario de Triatoma infestans en un área con resistencia a la Deltametrina

Cited by 12 publications

References 1 publication

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

Insecticide resistance in vector Chagas disease: Evolution, mechanisms and management

Effects of topical application of fipronil spot-on on dogs against the Chagas disease vector Triatoma infestans

Exposure of Workers of Ectatomma brunneum Smith (Hymenoptera: Formicidae: Ectatomminae) to ant Baits Containing Different Active Ingredients under Laboratory Conditions

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