1 Introduction Wild house mice (Mus musculus) were introduced to Australia during the early years of European settlement (Gabriel et al. 2011). Populations of mice undergo periodic mouse plagues, which have been a feature of Australian grain systems for over 120 years. Since 1904, mouse plagues have typically occurred in the grain-belt of southern and eastern states of Australia (South Australia, Victoria, New South Wales, and Queensland; Figure 1; Singleton et al.