Definition of Rodenticide Resistance

The term rodenticide resistance has several interpretations. The one adopted by RRAC is that of Greaves – 1994 (Resistance to Anticoagulant Rodenticides. In: Buckle A.P. and Smith R.H. eds. “Rodent Pests and their Control”, CABI, Wallingford, Oxon, UK, pg. 197-217):

“Anticoagulant resistance is a major loss of efficacy in practical conditions where the anticoagulant has been applied correctly, the loss of efficacy being due to the presence of a strain of rodent with a heritable and commensurately reduced sensitivity to the anticoagulant.”