A brief paper by Ruiz-Galván et al. (2918) described how in Mexico a non-native population of Cornu aspersum (O.F. Müller, 1774) developed since 2013 into a pest on apple trees. Although the authors have not found a specific reason for this, their paper shows an effective counter-tactic.
Ruiz-Galván, I. et al., 2018. Helix aspersa (Stylommatophora: Helicidae) plaga emergente de la manzana (Malus spp.) en Guerrero, Chihuahua. – Acta Zoológica Mexicana (n.s.) 34: e3412161 (5 pp.).