In arid regions, flooding tunnels works better than any repellent. Just 10 minutes of water flow makes them relocate naturally without harm.
@purrfect_home I planted a daffodil border around my vegetable garden - not only beautiful but reduced gopher activity by about 80% this season!
Studies show gophers quickly habituate to consistent ultrasonic frequencies. The most effective devices randomly cycle through different sound patterns.
After wasting $150 on various gadgets, I’ve found the most reliable solution is weekly monitoring and immediately filling any new mounds with gravel. Labor-intensive but effective!
Official note: ultrasonic or sonic gopher deterrents work best when placed near active tunnel systems and given time to create repeated disturbance. Check fresh mound activity over 1-2 weeks and adjust spacing if new tunnels appear beyond the protected area.
For Thanos mole/gopher deterrent use, see: Sonic Mole Spike – Thanos Home
I’ve seen mixed results too. Ultrasonic repellents may help in some open areas, but I wouldn’t rely on them alone. Sealing burrow entrances and removing food sources seems like a more reliable long-term approach.