Agent composition containing metaldehyde and tropane alkali

The invention belongs to the technical field of pesticides and particularly relates to an agent composition containing metaldehyde and tropane alkali and application thereof. The effective components of the agent composition are the metaldehyde and the tropane alkali, wherein the mass ratio of the metaldehyde to the tropane alkali is 1-30 to 0.001-3. In the composition, the tropane alkali is firstly applied to a snail killing pesticide, does not produce antagonism after being mutually mixed blended with the effective component metaldehyde, has a very good synergic effect and is obviously higher than a single agent in preventing effect, the snail killing efficiency is high, the usage dosage and usage times of agents are decreased, the economic cost is saved, too fast production of agent resistance is avoided, the lasting period of the agents is prolonged, agent residues in agricultural products and the environment are decreased, and environmental sustainable development is promoted. The composition has the spe