How to limit the rat numbers? Train the humans
Washington, D.C. 'Rat Rangers' are educating residents on sanitation practices to control the city's rising rodent population without relying on chemical poisons. The initiative focuses on human behavior, such as proper waste management, as the primary solution to infestation.
Why it matters
It demonstrates a shift toward ecological and behavioral management of urban pests rather than traditional chemical-heavy extermination methods.
Daniel Fishel for NPR WASHINGTON, D.C. — They creep through dark alleyways, peer behind trash cans and look inside old takeout containers.
These rangers work to educate D.C. residents about ways to prevent rat infestations without using poison. They organized after a 2024 City Wildlife study showed large numbers of D.C. wildlife with blood-clotting issues tested positive for rodenticides.
On a weeknight in late September, head Rat Rangers Holly Gerberich and Gerard Brown, wearing matching t-shirts with a rat on the front, lead two dozen D.C. residents down a dimly lit alley. The group is equipped with head lamps, closed toe-shoes and not nearly enough mosquito spray.
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