Screening of some Moroccan plant extracts for molluscicidal activity

c Department of Biology, Phytochemistry and Pharmacology of Aromatic and medicinal plants Unit, Laboratory of Biotechnology, Protection and Valorisation of plant resources; Faculty of Sciences Semlalia; POB 2390, 40000 Marrakech, Morocco, Department of Chemistry, Laboratory of Bioorganic and Macromolecular Chemistry, Faculty of Sciences and Techniques, Marrakesh Morocco Laboratory of Organic Chemistry, Lund University, POB 124, 22100 Lund, Sweden