Mollusc species currently constitute a major threat to sustainable agriculture, associated with cultivation of new crops, intensification of agricultural production systems, and the spread through human trade and travel of species adapted to these modified environments. In some crops, their significance is only now becoming apparent with the decline in the importance of other pest groups which can be effectively controlled. This book includes examinations of the deployment of molluscicides in baits, specific crop situations from around the world and synopses of the current pest status of mollusc cpecies or species groups and the progress towards the development of solutions.