Molluscicides (/məˈlʌskɪˌsaɪds, -ˈlʌs-/) are chemicals that kill molluscs. They are also known as snail baits, snail pellets, or slug pellets. These pesticides against molluscs are usually used in agriculture or gardening, in order to control gastropod pests specifically slugs and snails which damage crops or other valued plants by feeding on them. They are also used to limit the spread of Schistosoma mansoni, a human parasite that causes schistosomiasis, by preventing it from reproducing asexually within snails.

A number of chemicals can be employed as a molluscicide:

Many chemicals have been developed as molluscicides.

Slug pellets contain a carbohydrate source (e.g. durum flour) as a bulking agent.