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

[摘要] 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.

[学科分类] 传染病学

[关键词] : Natural molluscicides;colophony;Biomphalaria