Brackenbury T D, Appleton C C
Department of Biology, University of Natal, Durban, South Africa.
Acta Trop. 1997 Nov;68(2):201-13. doi: 10.1016/s0001-706x(97)00095-8.
Dried leaf material of a Mexican plant, Agave attenuata, was found to be highly toxic to the target snail, Bulinus africanus, intermediate host of Schistosoma haematobium in South Africa. The molluscicidal potency of the plant underwent seasonal variation, but remained stable over a range of pH values, after exposure to sunlight and organic matter, and during dry storage. It was unstable in aqueous suspension. The toxicity of the molluscicide to crop plants, invertebrates, fish and mammals was lacking or low. Given these properties, A. attenuata may provide a substitute for niclosamide and be used safely for snail control by rural communities.
人们发现，墨西哥植物龙舌兰的干叶材料对目标蜗牛——南非埃及血吸虫中间宿主非洲小泡螺具有高毒性。该植物的杀螺效力存在季节性变化，但在暴露于阳光、有机物后以及干燥储存期间，在一定pH值范围内保持稳定。它在水悬浮液中不稳定。该杀螺剂对农作物、无脊椎动物、鱼类和哺乳动物的毒性很低或没有毒性。鉴于这些特性，龙舌兰可能可替代氯硝柳胺，并可供农村社区安全用于控制螺类。
