Diversity of containers and buildings infested with Aedes aegypti in Puerto Iguazú, Argentina

Costa, Federico; Fattore, Gladys; Abril, Marcelo

doi:10.1590/s0102-311x2012000900019

Cited by 9 publications

(10 citation statements)

References 9 publications

(14 reference statements)

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“…We suggest that these non-residential urban environments, particularly vacant lots, should be considered for inclusion in mosquito surveillance and control efforts. Similar findings for vacant lots were reported previously from other Latin American countries, including Argentina (Costa et al 2012), Brazil (Lopes et al 1993, da Silva et al 2006, dos Reis et al 2010, de Mendonca et al 2011), and Costa Rica (Troyo et al 2008). Vacant lots have several charactersistics that make them potentially important sources for production of Ae.…”

Section: Discussionsupporting

confidence: 89%

“…However, there is growing recognition in the Americas that non-residential urban environments (e.g., cemeteries, schools, commercial premises, vacant lots, and stormwater drains and catch basins) also can be important sources for production of Ae. aegypti (Lopes et al 1993; Vezzani and Schweigmann 2002; Abe et al 2005; da Silva et al 2006; Morrison et al 2006; Troyo et al 2008; dos Reis et al 2010; García-Rejón et al 2011b, 2012; de Mendonca et al 2011; Costa et al 2012; Manrique-Saide et al 2012, 2013). Moreover, water-holding containers may differ across urban environments with regards to such factors as container composition, water dynamics, water quality, storage capacity, temperature, and physical location.…”

Section: Introductionmentioning

confidence: 99%

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Vacant Lots: Productive Sites forAedes(Stegomyia)aegypti(Diptera: Culicidae) in Mérida City, México

et al. 2014

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We assessed the potential for vacant lots and other non-residential settings to serve as source environments for Aedes (Stegomyia) aegypti (L.) in Mérida City, México. Mosquito immatures were collected, during November 2011 – June 2013, from residential premises (n = 156 site visits) and non-residential settings represented by vacant lots (50), parking lots (18), and streets/sidewalks (28). Collections totaled 46,025 mosquito immatures of 13 species. Ae. aegypti was the most commonly encountered species accounting for 81.0% of total immatures, followed by Culex quinquefasciatus Say (12.1%). Site visits to vacant lots (74.0%) were more likely to result in collection of Ae. aegypti immatures that residential premises (35.9%). Tires accounted for 75.5% of Ae. aegypti immatures collected from vacant lots. Our data suggest that vacant lots should be considered for inclusion in mosquito surveillance and control efforts in Mérida City, as they often are located near homes, commonly have abundant vegetation, and frequently harbor accumulations of small and large discarded water-holding containers that we now have demonstrated to serve as development sites for immature mosquitoes. Additionally, we present data for associations of immature production with various container characteristics, such as storage capacity, water quality and physical location in the environment.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Vacant Lots: Productive Sites forAedes(Stegomyia)aegypti(Diptera: Culicidae) in Mérida City, México

et al. 2014

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“…aegypti are similar to those of other authors. A study in an Argentinian city reported water barrels and tanks/tubs were often infested [23] and a study in Thailand [24] found that a third of cement water tanks were infested.…”

Section: Discussionmentioning

confidence: 99%

Aedes aegypti breeding ecology in Guerrero: cross-sectional study of mosquito breeding sites from the baseline for the Camino Verde trial in Mexico

et al. 2017

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BackgroundUnderstanding the breeding patterns of Aedes aegypti in households and the factors associated with infestation are important for implementing vector control. The baseline survey of a cluster randomised controlled trial of community mobilisation for dengue prevention in Mexico and Nicaragua collected information about the containers that are the main breeding sites, identified possible actions to reduce breeding, and examined factors associated with household infestation. This paper describes findings from the Mexican arm of the baseline survey.MethodsIn 2010 field teams conducted household surveys and entomological inspections in 11,995 households from 90 representative communities in the three coastal regions of Guerrero State, Mexico. We characterized Ae. aegypti breeding sites and examined the effect of two preventive measures: temephos application in water containers, and keeping the containers covered. We examined associations with household infestation, using bivariate and multivariate analysis adjusted for clustering effects.ResultsWe conducted entomological inspections in 11,995 households. Among 45,353 water containers examined, 6.5% (2958/45,353) were positive for larvae and/or pupae. Concrete tanks (pilas) and barrels (tambos) together accounted for 74% of pupal productivity. Both covering water containers and inserting temephos were independently associated with a lower risk of presence of larvae or pupae, with the effect of covering (OR 0.22; 95% CIca 0.15–0.27) stronger than that of temephos (OR 0.66; 95% CIca 0.53–0.84). Having more than four water containers was associated with household infestation in both rural areas (OR 1.42; 95% CIca 1.17–1.72) and urban areas (1.81; 1.47–2.25), as was low education of the household head (rural: 1.27; 1.11–1.46, and urban: 1.39; 1.17–1.66). Additional factors in rural areas were: household head without paid work (1.31; 1.08–1.59); being in the Acapulco region (1.91; 1.06–3.44); and using anti-mosquito products (1.27; 1.09–1.47). In urban areas only, presence of temephos was associated with a lower risk of household infestation (0.44; 0.32–0.60).ConclusionConcrete tanks and barrels accounted for the majority of pupal productivity. Covering water containers could be an effective means of Ae. aegypti vector control, with a bigger effect than using temephos. These findings were useful in planning and implementing the Camino Verde trial intervention in Mexico.

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“…A. aegypti belongs to family Culicidae, which has wide global distribution in tropical and subtropical areas, with geographic range being limited by altitude and low temperatures only (Funasa 2001). The adaptation of this organism to man-made environments is likely to have caused this synanthropic behavior (Natal 2002;Costa et al 2012). Population growth and spread of this organism has been exacerbated by human migration from rural areas to urban centers, as well as the lack of basic sanitation (Tauil 2001;Zara et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Larvicidal effects of supercritical extract of Melia azedarach and Bacillus thuringiensis var. israelensis product on late instar of Aedes aegypti (Diptera: Culicidae)

Lutinski

Hermes

Magro

et al. 2018

Rev. Colomb. Entomol.

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The intense use of synthetic products for the control of Aedes aegypti has led to the development of resistance and imposes health risks to other flora and fauna. This study assessed the larvicidal potential of Melia azedarach (Meliaceae) fruit extract obtained by the supercritical carbon dioxide extraction method and Bacillus thuringiensis var. israelensis (Bti) on second and third instar A. aegypti larvae under laboratory conditions. The assays were performed in disposable cups containing 100 250, 500, 750, 1,000 and 2,000 μg/ml extracts of M. azedarach, and 0.0005, 0.001, 0.0015, 0.002, and 0.0025 g/L of VectoBac WG®; the controls contained only water. Ten active larvae were added to each well, and the number of living larvae was counted each day for 72 h. Treatment efficiency was calculated using Abbott's equation. Insecticidal efficiency increased with M. azedarach extract concentration, with significant effects in the 1.000 and 2.000 μg/mL concentration range. Bti efficiency was 100 % in the first 24 h. The results indicate the possibility of A. aegypti population control using supercritical extracts of M. azedarach.

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Diversity of containers and buildings infested with Aedes aegypti in Puerto Iguazú, Argentina

Cited by 9 publications

References 9 publications

Vacant Lots: Productive Sites forAedes(Stegomyia)aegypti(Diptera: Culicidae) in Mérida City, México

Vacant Lots: Productive Sites forAedes(Stegomyia)aegypti(Diptera: Culicidae) in Mérida City, México

Aedes aegypti breeding ecology in Guerrero: cross-sectional study of mosquito breeding sites from the baseline for the Camino Verde trial in Mexico

Larvicidal effects of supercritical extract of Melia azedarach and Bacillus thuringiensis var. israelensis product on late instar of Aedes aegypti (Diptera: Culicidae)

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