Rodenticides for Control of Norway Rats, Roof Rats and House Mice

Rodenticides are commonly used for control of roof rats, Norway rats and house mice (known as commensal rodents) in and around poultry facilities as one component of an integrated pest management program. Most commercial baits are registered for rats and mice, although level of susceptibility to the toxicants, as well as the attractiveness and palatability of the bait formulation varies between the species and even between individuals of the same species. No rodent bait ingredient is universally highly acceptable, and regional differences are the rule rather than the exception. To achieve good control of commensal rodents using rodenticides, selection of the appropriate toxicant and formulation (i.e., grain, pelleted, or wax block); as well as bait placement, are important considerations.