Apart from being much safer, my pellets work in a completely different way. Metaldehyde is a chemical which – once eaten – kills slugs and snails through dehydration. This results in the unsightly ‘slime trails’ commonly associated with slugs and snails. Once they have dehydrated their bodies remain on the surface of the garden. The active ingredient in my pellets is iron phosphate, a naturally occurring compound. Once the pellets are consumed the slug or snail feels unwell and immediately stops feeding. They then burrow underground to ‘hide away’ and die out of sight leaving no slime trails or unpleasant dead remains on the garden.
Not only that, my pellets last much longer than standard metaldehyde pellets in wet weather due to a special production process which allows the pellets to swell when moist and then contract back to their original size once dry. Metaldehyde pellets are unable to do this and therefore break down into ‘blue mush’ when exposed to rain making them much less attractive to slugs and snails.