Gopher Control in Missouri

What to look for

Both are solitary and territorial, meaning each mound system usually houses just one animal—but a single gopher can produce 50–100 mounds per year. The challenge is that their tunnels are extensive and deep, making surface treatments like repellents largely ineffective. Moist soil in spring and fall makes digging easier, which is why you’ll see the most activity then. In Missouri, gophers are found statewide, but they are more prevalent in areas with deep, well-drained soils like loess bluffs along the Missouri River or sandy soils in the southeastern Lowlands. Pocket gophers are among the most destructive rodents to turf and agriculture. They feed on roots, bulbs, and vegetation, often killing plants by severing roots. Their tunnels, typically 4–18 inches deep, can collapse underfoot and create tripping hazards. In Missouri, the two common species are the plains pocket gopher (eastern half) and the Ozark pocket gopher (south-central region).

• 1Crescent- or fan-shaped mounds of loose soil (no visible hole from above).
• 2Plugged tunnel openings—gophers seal surface holes with dirt.
• 3Wilting or dying plants with roots chewed off.
• 4Irrigation lines chewed or exposed after tunnel collapse.
• 5Raised ridges in lawn where shallow tunnels run just under the surface.
• 6Feces or food caches found in shallow tunnels (rarely seen).
• 7Sudden appearance of multiple mounds in a small area over a few days.

Treatment options and typical costs

Prices are typical published ranges. Ask what’s included before you compare quotes.

Understanding Gopher Behavior and Tunnel Systems.

Mounds are created when they push soil from deep tunnels to the surface—these are always crescent-shaped with a plug on one side. Gophers feed on roots, bulbs, and vegetation, often pulling entire plants into their tunnels. They are active year-round but are most visible in spring and fall when soil moisture is optimal for digging. In Missouri, the plains pocket gopher dominates eastern and northern regions, while the Ozark pocket gopher is found in the south-central Ozarks. Both species have similar habits, but the Ozark gopher tends to inhabit deeper, rockier soils. Pocket gophers are solitary, territorial rodents that spend almost their entire lives underground. A single gopher’s tunnel system can span 200–2,000 square feet, with main tunnels 4–18 inches deep and lateral feeding tunnels closer to the surface.

Why Missouri’s Soils and Climate Matter for Gopher Control.

The Ozark region has thin, rocky soils that gophers still manage, but their tunnels are shallower and mounds are smaller. In the southeastern Bootheel, sandy soils of the Mississippi Alluvial Plain support dense gopher populations. Climate-wise, Missouri’s humid continental climate with cold winters and hot summers means gophers are less active in extreme cold (they remain underground) and during summer droughts (soil hardens). Spring and fall are peak times for above-ground activity. Control efforts should be timed to these windows for best results. Missouri’s diverse geology creates distinct gopher habitats. In the northern plains and along the Missouri River, deep loess soils are ideal for tunneling—gophers are common there.

The Science of Trapping: What Works and Why.

Two traps are placed back-to-back in the main tunnel, facing opposite directions, to catch the gopher coming from either side. The traps must be set in darkness (tunnel blocked with soil or sod) to prevent light from alerting the gopher. Traps should be checked every 24 hours. In Missouri clay soils, traps may need to be cleared of dirt clods. The Macabee trap is preferred for its sensitivity, but Victor traps also work. A single trapping session can remove 1–3 gophers per acre, but reinfestation can occur if neighboring gophers move in. Trapping is the most reliable removal method because it directly kills the gopher without poisoning the environment or risking non-target animals. The key is to locate the main tunnel, not just a feeding lateral. Professionals use a probe to find tunnels by feeling for the air gap.

Baiting Considerations and Non-Target Risks.

EPA regulations require that bait be placed in a manner that minimizes exposure. Professional applicators are trained to follow these guidelines. For most residential properties in Missouri, trapping is the safer and more effective choice. Rodenticide baits are an alternative when trapping is impractical, but they must be used with caution. Baits containing zinc phosphide are fast-acting and degrade quickly, reducing secondary poisoning risk. toxic baits (like diphacinone) are slower and more likely to accumulate in predators. In Missouri, where populations of owls, hawks, and snakes are common, toxic baits pose a risk. Always use bait in bait stations or deep inside tunnels, and never on the surface.

Simple ways to keep gophers away

• Install underground fencing (hardware cloth) around gardens, buried 18–24 inches deep with a 6-inch outward L-flange.
• Reduce watering in infested areas to make soil less appealing for digging.
• Remove heavy mulch or ground cover that provides cover for gophers.
• Plant gopher-repellent plants like castor bean, daffodils, or marigolds in borders (though effectiveness varies).
• Maintain a buffer strip of short grass or gravel around landscaped beds to make gophers feel exposed.
• Encourage natural predators like owls and hawks by installing owl boxes or perches.
• Inspect lawn and garden regularly for new mounds, especially in spring and fall.

Questions people ask

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