If you have ever seen long silvery trails in your garden or holes chomped out of the leaves of your plants, you know well what damage slugs and snails can do. Active from early spring, they are capable of causing large-scale destruction to garden plants in a short span of time. This damage can be fatal if the critters manage to get to your budding seedlings or stems of plants and flowers.

David is back in the garden with this easy, low cost top tip to keep your tomatoes, chillies and sunflowers safe all year round.