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Lab studies on the mollusk action of pine tree resin, collophonia, on Biomphalaria havanensis

Abstract:

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 probitlog program. RESULTS: The lethal doses found were as follows: LD 50= 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.