Study Finds Most Urban Mice Are Developing Resistance To Rat Poison

A new study published in Pest Management Science has found that urban house mice in the northeastern United States are increasingly developing genetic resistance to commonly used anticoagulant rodenticides, raising concerns about the long-term effectiveness of traditional pest control methods.

Researchers from Rutgers University analyzed 147 house mice and 143 Norway rats, discovering that 84% of the mice carried at least one mutation in the Vkorc1 gene, while about 70% possessed mutations associated with resistance to widely used rodenticides.

The findings suggest that continued reliance on the same class of poisons could make rodent control increasingly difficult in urban environments.

Scientists also warned that increasing poison doses to overcome resistance could heighten risks to non-target wildlife and household pets, underscoring the need for more sustainable and integrated pest management practices.

Related Tweet:

Scientists Find Poison-Resistant Mutant Rats Spreading Across America’s Biggest Cities

Link in the comment section. pic.twitter.com/7MrRF9ZNVf

— The Gateway Pundit (@gatewaypundit) June 25, 2026

Also Read:

Thousands Feared Dead After 2 Major Earthquakes Strike Venezuela

Emergency workers scrambled over the debris of collapsed buildings in Caracas as night fell, while distraught relatives sought help for loved ones feared trapped.

tippinsightsTIPP Staff