03-19-2016, 07:41 AM
I've used cholecalciferol pellets to control mice and they work great. I've never seen it as an ingredient on the big rat bait blocks that go onto the wires in the bait stations. It's the only kind we want to use because the rats can only remove the bait from the station by eating it. We've tried most of the brands, the one that is currently working the best is the "just one bite II" brand. It's more expensive but one bait block kills more rats so in theory it's actually less expensive. Unfortunately while a single feeding will deliver a lethal dose it still takes 2-3 days for them to die so its not any more humane than the others. The cheapest way to buy it is the 8-pound multi-pack from Amazon. The last bait we used was a bromethalin based poison under the Tomcat brand. It's worthless. It might be an effective poison but rodents aren't attracted to the bait. It smells like candy instead of grains/peanut butter like the other types. They won't even eat if if I smear peanut butter on the blocks, a technique that has worked with other brands. I usually mix different types of bait blocks in the same stations to appeal to the most discriminating rat palette but the Tomcat bromethalin baits are a no-go.