Every year I have mole infestations from three different areas. I have tried all the repellants, etc. and nothing worked. I have been using professional trappers for the last 2 years, which did work but was very expensive.
This year I heard the ads for Tomcat and gave it a try. The next day after applying the bait all mole activity ceased in that area. I have done 3 applications, one for each area. I did these on different days, out of laziness. Where I didn't apply the bait the activity continued. The day after I applied the bait all activity stopped on that run.
The bottom line is Tomcat was 100% effective. It is the only chemical I have tried over the last 14 years that actually works. It is a little on the expensive side, but it is certainly cheaper than professional trapper.
I just wished I found it years ago. My yard is so chewed up from years of moles that I would have to redo the whole thing to make it smooth again.
Highly recommended!