1. Destroy plants: Snails are the main herbivores of plants. They will eat leaves, buds and fruits of various plants, which will hinder the growth of plants and even lead to their death.
2. Spreading diseases: Snails may carry all kinds of bacteria, parasites and fungi. These bacteria, parasites and fungi will spread to plants through the mucus or excrement of snails, causing diseases and seriously affecting crops.
3. Disrupting the ecological balance: Snails may be exotic species in some areas, and their massive reproduction and diffusion will destroy the local ecological balance and pose a threat to other creatures.
4. Affect human health: Snail mucus contains parasite eggs. If you accidentally touch snails or their secretions, you may be infected with parasitic diseases, which will do harm to human health.