Evidence map›Paper›PMID 42757796›Full record

ArticleBiomedica : revista del Instituto Nacional de Salud2026

Biological control strategy with Poecilia reticulata for the reduction of Aedes spp. and Culex sp. in urban stormwater drains: Experience at Universidad del Valle, Cali, Colombia

Olga Lucía Velásquez, Gissel Guzmán, Olga Lucía Cuellar, Madelaine Piedrahita, Carlos Alberto Reina

Abstract read
In one paragraph

Article in Biomedica : revista del Instituto Nacional de Salud, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Olga Lucía VelásquezSubgrupo de Prevención, Vigilancia y Control de las Enfermedades Transmitidas por Vectores, Grupo de Salud Ambiental, Secretaría de Salud del Distrito Especial de Cali, Cali, Colombia.ORCID 0000-0002-4109-9217
Gissel GuzmánSubgrupo de Vigilancia y Demografía, Grupo Salud Pública Cali, Secretaría de Salud del Distrito Especial de Cali, Cali, Colombia.ORCID 0000-0002-6464-5647
Olga Lucía CuellarSubgrupo de Prevención, Vigilancia y Control de las Enfermedades Transmitidas por Vectores, Grupo de Salud Ambiental, Secretaría de Salud del Distrito Especial de Cali, Cali, Colombia.ORCID 0009-0000-0702-0483
Madelaine PiedrahitaSubgrupo de Prevención, Vigilancia y Control de las Enfermedades Transmitidas por Vectores, Grupo de Salud Ambiental, Secretaría de Salud del Distrito Especial de Cali, Cali, Colombia.ORCID 0009-0004-0545-6661
Carlos Alberto ReinaFacultad de Salud, Fundación del Área Andina, Bogotá, D. C., Colombia.ORCID 0000-0002-6367-9239

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDengue is one of the most significant arboviral diseases in Latin America and the Caribbean, with Aedes aegypti as its primary vector. The elimination of breeding sites is the most effective control strategy; however, the presence of stormwater drains in urban environments poses a challenge.

objectiveTo evaluate the effectiveness of biological control using Poecilia reticulata in reducing Aedes (Aedes aegypti and Aedes albopictus) and Culex sp. larvae in urban stormwater drains at Universidad del Valle, Cali, Colombia. MATERIALS AND

methodsA quasi-experimental study was conducted with a nine-month follow-up (October 2022 - June 2023). All stormwater drains catch basins at the University were inspected, and 12 catch basins were selected that contained Aedes (A. aegypti and A. albopictus) and Culex sp. mosquito larvae. The number of mosquito larvae by genus, water temperature, and pH were recorded weekly. The intervention involved the introduction and monitoring of P. reticulata, with reintroductions as needed. A Bayesian multilevel logistic regression model was used to estimate the intervention effect, adjusting for environmental factors and variability among stormwater drains.

resultsThe intervention group showed a trend toward lower larval presence, although it did not reach statistical significance (β = -0.90, 95% CI: -2.01 to 0.21). Water temperature was positively associated with larval presence (β = 0.25, 95% CI: 0.07 to 0.45), while pH showed a negative association (β = -1.50, 95% CI: -3.06 to -0.06), indicating reduced larval development in more alkaline water.

conclusionsBiological control with P. reticulata showed potential for reducing larval presence. Temperature and pH were key determinants of larval presence, emphasizing the need to consider environmental factors in vector control strategies.

Indexed as

AedesCulexMosquito ControlMosquito VectorsPest Control, BiologicalPoeciliaAnimalsCitiesColombiaDengueDrainage, SanitaryLarvaTemperatureAedes aegyptiarbovirus infectionsBayes theorembiologicalCulex sp.dengue/epidemiologypest controlPoecilia reticulatapublic health

Identifiers

PMID42757796
PMCPMC13649254

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.