Molluscicidal and piscicidal activities of Venezuelan Chrysobalanaceae plants

Extracts of increasing polarity of 6 Venezuelan plants belonging to the Chr ysobalanaceae family were tested for possible letal:toxicity against Biomph alaria glabrata Say, a snail intermediate hosts of Schistosoma mansoni Samb on. The piscicidal toxicity of the active extracts was also evaluated with the aim of findings compounds without toxicity in nontarget organisms, prin cipally fishes and humans. (C) 1999 Elsevier Science Inc.