WhatoGrow

← All pests & diseases

Pest

Snails and slugs

What it is

Night-feeding molluscs that shred seedlings and leafy greens, leaving ragged holes and slimy trails, worst in damp weather.

How to identify it

Irregular holes with silvery slime trails, seedlings vanishing overnight, hiding under pots and mulch by day.

How to treat it

Hand-pick after dark, set beer traps, or use iron-based (pet-safe) snail pellets rather than metaldehyde.

How to prevent it

Clear damp hiding spots, water in the morning so surfaces dry by night, and protect seedlings with barriers.

Plants affected

Treatment guidance is general and organic-first; check current advice for your area before using any product.