Eficacia en campo de un repelente a base de para-mentano-3,8-diol y aceite de limonaria contra Culicoides pachymerus (Diptera: Ceratopogonidae) en Colombia.

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Bibliographic Details
Title:	Eficacia en campo de un repelente a base de para-mentano-3,8-diol y aceite de limonaria contra Culicoides pachymerus (Diptera: Ceratopogonidae) en Colombia.
Alternate Title:	Field efficacy of repellent formulation containing para-menthane-3,8-diol and lemongrass against Culicoides pachymerus (Diptera: Ceratopogonidae) in Colombia.
Authors:	Santamaría, Erika¹ esantamaria@ins.gov.co, Cabrera, Olga Lucía¹, Zipa, Yaneth², Pardo, Raúl Hernando³
Source:	Biomédica: Revista del Instituto Nacional de Salud. Sep2012, Vol. 32 Issue 3, p457-460. 4p. 1 Chart.
Subjects:	INSECT baits & repellents, CERATOPOGONIDAE, LEMONGRASS, PACHYMERUS, CONTROL groups
Geographic Terms:	COLOMBIA
Abstract (English):	Introduction. Culicoides pachymerus is a major pest species for the inhabitants of the western Boyacá province of Colombia. Objective. The effect of a repellent lotion based on p-menthane-3,8-diol (16%) and lemongrass oil (2%) was evaluated against the bites of C. pachymerus. Materials and methods. The repellent lotion was compared simultaneously with a control (no treatment) by human landing catches of C. pachymerus on the forearms of paired volunteers situated near human dwellings. Protection percentage and protection time for 3 to 6 h after repellent application was calculated. The test was repeated ten times. Results. Only two females of C. pachymerus were collected on arms with the repellent treatment. In contrast, the mean biting rate in the untreated control was 47.7 midges/person/10 min. Mean protection percentage of the repellent was 100% up to 4 h and 99.5% up to 5 h. Protection time was 332.2 and 338.2 min in the two replicates where bites of C. pachymerus were confirmed. In the remaining eight replicates protection time exceeded the test duration. Conclusion. The repellent showed high efficacy against C. pachymerus, up to 5 h post-application. [ABSTRACT FROM AUTHOR]
Abstract (Spanish):	Introducción. Culicoides pachymerus, por sus picaduras, ocasiona una grave molestia sanitaria en la población del occidente del departamento de Boyacá (Colombia). Objetivo. Evaluar de forma preliminar en campo el efecto de una loción repelente con ingredientes activos de origen natural (p-mentano-3,8-diol 16 % y aceite de limonaria 2 %) contra las picaduras de C. pachymerus. Materiales y métodos. En parejas de voluntarios ubicadas en el peridomicilio, se comparó simultáneamente la loción repelente con un control (sin aplicación de repelente) mediante la tasa de picadura de C. pachymerus en el antebrazo, el porcentaje de protección y el tiempo de protección durante un periodo entre tres y seis horas después de la aplicación. La prueba se repitió 10 veces. Resultados. Solo dos hembras de C. pachymerus se recolectaron en el tratamiento con la loción repelente, mientras que, en el control, la tasa promedio de picadura fue de 47,7 hembras por persona en 10 minutos. El porcentaje de protección promedio del repelente fue de 100 % hasta cuatro horas después de la aplicación y se mantuvo alto (99,5 %) hasta cinco horas después. Solo en dos pruebas se registró picadura confirmada de C. pachymerus, con un tiempo de protección de 332,2 y 338,2 minutos. En las ocho pruebas restantes el tiempo de protección superó la duración de la prueba. Conclusión. El repelente evaluado demostró una gran eficacia en la prevención de las picaduras de C. pachymerus, hasta cinco horas después de su aplicación. [ABSTRACT FROM AUTHOR]
	Copyright of Biomédica: Revista del Instituto Nacional de Salud is the property of Instituto Nacional de Salud of Colombia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database:	MedicLatina

Description
Abstract:	Introduction. Culicoides pachymerus is a major pest species for the inhabitants of the western Boyacá province of Colombia. Objective. The effect of a repellent lotion based on p-menthane-3,8-diol (16%) and lemongrass oil (2%) was evaluated against the bites of C. pachymerus. Materials and methods. The repellent lotion was compared simultaneously with a control (no treatment) by human landing catches of C. pachymerus on the forearms of paired volunteers situated near human dwellings. Protection percentage and protection time for 3 to 6 h after repellent application was calculated. The test was repeated ten times. Results. Only two females of C. pachymerus were collected on arms with the repellent treatment. In contrast, the mean biting rate in the untreated control was 47.7 midges/person/10 min. Mean protection percentage of the repellent was 100% up to 4 h and 99.5% up to 5 h. Protection time was 332.2 and 338.2 min in the two replicates where bites of C. pachymerus were confirmed. In the remaining eight replicates protection time exceeded the test duration. Conclusion. The repellent showed high efficacy against C. pachymerus, up to 5 h post-application. [ABSTRACT FROM AUTHOR]
ISSN:	01204157
DOI:	10.7705/biomedica.v32i3.738