Snails are an important part of my cactus farm. They eat fallen leaves and other dead plant matter while fertilizing the soil. Snails feed on insect pests and the dung of other animals.
Snails are also a great source of food for many of the birds and small mammals living in the garden.
A heavy infestation of snails may show that the garden is losing its balance. Some folks try to keep their garden as clean as their home. When your garden is too neat, it becomes difficult for creatures to find a safe home to live.