How about deterring snakes? I get black snakes and rat snakes in the garden and yard. They may eat rodents, but also my toads. I can deal with the moles, etc. , but once I see a snake, I'm done gardening for the day. Does 'Serpent Guard' work?
Certified GKH Gardening Expert
The best way to keep snakes out of your yard is to make sure that you make you garden an unattractive place for them. They need cool, damp places to live, so removing debris or fallen plant material can help eliminate the places they like to sleep, which will force them to find other places to live. This article has some other suggestions as well: