Both eat roots, but their soil architecture differs. Pocket gophers create large, fan-shaped mounds with plugged holes—tunnels are deep, rarely seen. Voles make no mounds; they use surface runways in grass and shallow burrows with open holes.
| Feature | Pocket Gopher | Vole |
|---|---|---|
| Mounds | Large, fan/crescent, plugged | None |
| Holes | Always closed | Open, dime-sized |
| Tunnels | Deep, extensive | Shallow, often under mulch/grass |
| Activity | Day/night, year-round | Day/night, population cycles |
| Control | Trapping in main tunnel, baiting | Habitat reduction, snap traps, baits |
Common in diverse landscapes. Treat each with species-specific methods. Flooding is minimally effective—gophers plug tunnels, voles swim. Focus on exclusion (hardware cloth for voles) and trapping.
Detailed guides at ICWDM.
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