It sinks down in the burrow and replaces the oxygen with CO2 so they never wake up.I wasn't planning on using poison, we also have cats. We put water in the buckets, but I was thinking we'd probably need a larger one too. I don't know if there's any place near us with dry ice. Though I can pick some of that up in town. Just curious, how does that kill them?
It definitely works as long as you can find the burrows, block off the various entryways and stuff with dry ice.
Party shops have dry ice and may even deliver.
I found ‘chunks or chips’ to be the best size and about a 10lb bag.
It stays frozen a far time - like a day - so don’t panic that it is disappearing before you have had time to pour it down the tunnels.
Also have leather gardening gloves - it can seriously damage your skin if you touch it.
