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Estudios de laboratorio sobre la acción molusquicida de la resina de pino, colofonia, sobre Biomphalaria havanensis Lab studies on the mollusk action of pine tree resin, collophonia, on Biomphalaria havanensis

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Author(s): Yosvania Hevia Jiménez | Juan E. Tacoronte Morales | Jorge Sánchez Noda | Antonio A. Vázquez Perera | Alfredo Gutiérrez | Olinka Tiomno Tiomnova | Antonio Mesa Díaz

Journal: Revista Cubana de Medicina Tropical
ISSN 0375-0760

Volume: 60;
Issue: 2;
Date: 2008;
Original page

Keywords: Molusquicidas naturales | colofonia | Biomphalaria | Natural molluscicides | colophony | Biomphalaria

ABSTRACT
Introducción: la ausencia de poblaciones de moluscos en el entorno ecológico y natural de las pináceas, observada en estudios de campo, conllevó a estudiar la resina de pino, colofonia, como control del molusco Biomphalaria havanensis, hospedero intermediario de Schistosoma mansoni. Objetivo: determinar la acción molusquicida de la colofonia para su posible utilización en el control de Biomphalaria havanensis. Métodos: se utilizaron 7 concentraciones diferentes para determinar las dosis letales y los datos fueron analizados por un probit-log. Resultados: las dosis letales encontradas fueron: DL50= 44,33 mg/L y DL90= 141,76 mg/L. Conclusiones: con estos resultados se demostró el poder molusquicida de 2 de las pináceas cubanas, a través de la resina de colofonia, sobre Biomphalaria havanensis.Background: Field studies have previously demonstrated that freshwater mollusk populations did not exist in the ecological and natural environment of pine trees, which led to study pine resin, colophony, as a controlling agent for Biomphalaria havanensis mollusk, an intermediate host of Schistosoma mansoni. Objective: to determine the molluscicidical action of colophony as possible use as a controlling agent for Biomphalaria havanensis. Methods: Seven different concentrations were used to determinate the lethal doses. Data were analyzed by probit-log program. Results: The lethal doses found were as follows: LD50 = 443.3 mg/L and LD90 = 1417.6 mg/L. Conclusions: These experiments showed the molluscicidical activity of the two Cuban pinaceas, through the colophony resin, on Biomphalaria havanensis.
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