Slugs and Snails are Slimy Garden Pests
Slugs and snails are enemies of the home gardener. They can devastate a garden practically overnight. Remove all slug hiding places from the garden and nearby. Keep them away with the old-fashioned method of placing small containers of stale beer in the garden.
Dorling Kindersley Limited
All gardens, however carefully nurtured, are likely to harbor some pests and diseases. If you see these bugs around your plants, there's a good chance they are damaging them.