CAS No: 108-62-3 Mode of action: Selective molluscicide, neurotoxic substance with strong contact action and the stomach action. Uses: Control of snail and slug, both for prevention and elimination. Scattered on the bare ground or around the plant root, usually used in the period of snailâs activity in spring and autumn. Formulation types: Metaldehyde 99% TC, Metaldehyde 10%/6%/5% GR