Laboratory and field evaluation of the effects of the neonicotinoid imidacloprid on the oviposition response of Aedes (Stegomyia) aegypti Linnaeus (Diptera: Culicidae)

Antonio-Arreola, Gloria Elsa; López-Bello, Roger; Romero-Moreno, Daenna Kaori; Sánchez, Daniel

doi:10.1590/s0074-02762011000800016

Cited by 7 publications

(7 citation statements)

References 26 publications

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“…Antonio-Arreola et al [27] also reported a high efficacy of imidacloprid; specifically, they reported a 99% mortality of mosquito larvae exposed to 0.15 ppm of this neonicotinoid insecticide for 24 h, while we did not observe more than 5% mortality at this concentration. Differences in the susceptibility may exist between these populations, which should be considered.…”

Section: Discussioncontrasting

confidence: 48%

Survival and swimming behavior of insecticide-exposed larvae and pupae of the yellow fever mosquito Aedes aegypti

et al. 2014

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BackgroundThe yellow fever mosquito Aedes aegypti is essentially a container-inhabiting species that is closely associated with urban areas. This species is a vector of human pathogens, including dengue and yellow fever viruses, and its control is of paramount importance for disease prevention. Insecticide use against mosquito juvenile stages (i.e. larvae and pupae) is growing in importance, particularly due to the ever-growing problems of resistance to adult-targeted insecticides and human safety concerns regarding such use in human dwellings. However, insecticide effects on insects in general and mosquitoes in particular primarily focus on their lethal effects. Thus, sublethal effects of such compounds in mosquito juveniles may have important effects on their environmental prevalence. In this study, we assessed the survival and swimming behavior of A. aegypti 4th instar larvae (L4) and pupae exposed to increasing concentrations of insecticides. We also assessed cell death in the neuromuscular system of juveniles.MethodsThird instar larvae of A. aegypti were exposed to different concentrations of azadirachtin, deltamethrin, imidacloprid and spinosad. Insect survival was assessed for 10 days. The distance swam, the resting time and the time spent in slow swimming were assessed in 4th instar larvae (L4) and pupae. Muscular and nervous cells of L4 and pupae exposed to insecticides were marked with the TUNEL reaction. The results from the survival bioassays were subjected to survival analysis while the swimming behavioral data were subjected to analyses of covariance, complemented with a regression analysis.ResultsAll insecticides exhibited concentration-dependent effects on survival of larvae and pupae of the yellow fever mosquito. The pyrethroid deltamethrin was the most toxic insecticide followed by spinosad, imidacloprid, and azadirachtin, which exhibited low potency against the juveniles. All insecticides except azadirachtin reduced L4 swimming speed and wriggling movements. A similar trend was also observed for swimming pupa, except for imidacloprid, which increased the swimming activity of pupa. Curiously, the insecticides did not affect cell damage in the neuromuscular system of larvae and pupae.ConclusionsDeltamethrin and spinosad were the main compounds to exhibit lethal effects, which allowed the control of A. aegypti larvae and pupae, and impair their swimming potentially compromising foraging and predation likelihood.

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Section: Discussioncontrasting

confidence: 48%

Survival and swimming behavior of insecticide-exposed larvae and pupae of the yellow fever mosquito Aedes aegypti

et al. 2014

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“…The neonicotinoid imidacloprid has a broad spectrum of activity, persistence and versatility of application in agriculture and is one of the most commonly used pesticides worldwide (Elbert et al, 2008;Jeschke & Nauen, 2008). However, little information is available about its effects on St. aegypti (Antonio-Arreola et al, 2011). Although imidacloprid has low activity against larvae and pupae compared with other insecticides, its sub-lethal effects may be important in reducing populations of St. aegypti (Tomé et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Imidacloprid impairs the post‐embryonic development of the midgut in the yellow fever mosquito Stegomyia aegypti (=Aedes aegypti)

Fernandes

Gonzaga

Pascini

et al. 2015

Medical Vet Entomology

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The mosquito Stegomyia aegypti (=Aedes aegypti) (Diptera: Culicidae) is a vector for the dengue and yellow fever viruses. As blood digestion occurs in the midgut, this organ constitutes the route of entry of many pathogens. The effects of the insecticide imidacloprid on the survival of St. aegypti were investigated and the sub-lethal effects of the insecticide on midgut development were determined. Third instar larvae were exposed to different concentrations of imidacloprid (0.15, 1.5, 3.0, 6.0 and 15.0 p.p.m.) and survival was monitored every 24 h for 10 days. Midguts from imidacloprid-treated insects at different stages of development were dissected and processed for analyses by transmission electron microscopy, immunofluorescence microscopy and terminal deoxynucleotidyl transferase dUTP nick-end labelling (TUNEL) assays. Imidacloprid concentrations of 3.0 and 15.0 p.p.m. were found to affect midgut development similarly. Digestive cells of the fourth instar larvae (L4) midgut exposed to imidacloprid had more multilamellar bodies, abundantly found in the cell apex, and more electron-lucent vacuoles in the basal region compared with those from untreated insects. Moreover, imidacloprid interfered with the differentiation of regenerative cells, dramatically reducing the number of digestive and endocrine cells and leading to malformation of the midgut epithelium in adults. The data demonstrate that imidacloprid can reduce the survival of mosquitoes and thus indicate its potentially high efficacy in the control of St. aegypti populations.

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“…Many kinds of lethal ovitraps have been developed to date, including containers filled with larvivorous fish (Pamplona et al, 2009) or insecticides such as imidacloprid (Arreola et al, 2011). A field evaluation in Thailand reported the low efficacy of insecticideimpregnated strips due to fungal contamination (Sithiprasasna et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Larvicidal and ovipositional preference test of copper solution for mosquitoes

Reza

Yamamoto

Matsuoka

2014

Jap. J. Sanit. Zool.

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In the previous studies, we demonstrated that larvae of Anopheles stephensi died within two weeks after the exposure of the larvae to 2.4 ppm of copper solution. The ability of copper to kill mosquito larvae prompted us to examine its applicability to ovitraps. We demonstrated in this study that 10 ppm of copper killed more than 90% of larvae (Anopheles stephensi, Aedes albopictus and Culex pipiens pallens) in 96 hours. At 3.3 ppm, Cx. pipiens was more sensitive than An. stephensi and Ae. albopictus. Fifty percent of Cx. pipiens larvae died within 24 hours but An. stephensi and Ae. albopictus survived more than 50% at 48 hours. We also observed that gravid mosquitoes of An. stephensi, Ae. albopictus, and field-collected An. sinensis did not detect nor avoid 10 ppm copper solution for laying eggs under laboratory conditions. These results suggest that copper could be used in ovitraps as a low cost alternative and the eradication of mosquito-borne diseases.

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Laboratory and field evaluation of the effects of the neonicotinoid imidacloprid on the oviposition response of Aedes (Stegomyia) aegypti Linnaeus (Diptera: Culicidae)

Cited by 7 publications

References 26 publications

Survival and swimming behavior of insecticide-exposed larvae and pupae of the yellow fever mosquito Aedes aegypti

Survival and swimming behavior of insecticide-exposed larvae and pupae of the yellow fever mosquito Aedes aegypti

Imidacloprid impairs the post‐embryonic development of the midgut in the yellow fever mosquito Stegomyia aegypti (=Aedes aegypti)

Larvicidal and ovipositional preference test of copper solution for mosquitoes

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