I have been fighting the critters for 22 years now. Tried wind things, the battery sound things, the solar sound things. Only thing that has worked for the most part is castor oil. Go to lowes. They have two products that work. One is pellets that slowly dissolve and release a castor oil type product. It is very slow to work but it does work. I use it once in the sring and once in the late summer. In addition, I use the the other product that you attach to a garden hose and spray the lawn. You MUST water the heck out of the lawn or apply before a rainstorm to get the stuff into the soil. The spray works faster but doesn't last as long. Start by spraying 30% of the lawn closest to the house. The critters will move away fromt that location and you may actually see more activity when they do that. Then a week later spray another 30% and some of the previous 30% this will force them to the edge or into your neighbors lot. Then a week later spray the remainder 30%. My mole problem is about 90% better now.
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