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A comment on NYC Rat Sightings (Daily) – Interactive Chart. Parent comment

Re:NYC Rat Sightings (Daily) – Interactive Chart by psychlops on Thursday April 11, 2024 @05:04PM (#40006788)
Envious. That wasn't possible in my case although I also did it myself. I killed hundreds using 30 lbs of dry ice. The city parking lot nearby had dozens of nests I mapped and sealed.

Btw, how did you "catch" them? Were they Norwegian rats?

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Re:NYC Rat Sightings (Daily) – Interactive Chart by litoE on Thursday April 11, 2024 @06:32PM (#40007502)
How do you kill rats with dry ice?
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Re:NYC Rat Sightings (Daily) – Interactive Chart by psychlops on Thursday April 11, 2024 @06:37PM (#40007531)
Dry ice is frozen CO2. Rat nests usually have two holes, an entrance and an exit. Close one, place dry ice in the other and close the other hole to seal it. The dry ice melts and floods the chambers with CO2, no more rats.

It's considered more humane and safe than poison. Some cities use this method.

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