I use that stuff, but there's a lot of "replacement moles" around my place that keep moving in. Its not safe for humans to breath the fumes either, so quickly deploy the bomb as directed, fuse-first into the hole, hold your breath before it starts going off, instantly cover the hole with a short block of 2x4, then cover that with dirt...all of this as quickly as possible, trying to not let any of the gas escape. I have a spring-powered spike trap, but I need to make the trigger release more sensitive. So far the factory setting is too tight, and the dang thing hasn't worked. I have an electronic mole repeller, and that works until the moles finally get used to it. I'm going to try the wriggly's gum. Once, I was able to spear one that was pushing up dirt (caught in the act!) with a home-made mole spear. It was a long-bladed carving knife taped to a broom handle. Cats are useless against moles. I did see the neighbor's aggro Pit Bull dig up a mole and bite it to death. Made my day! the dog got a little too aggro and also bit another neighbor's dog to death, and had to be put to sleep. RIP Belle, I miss ya!