How to Get Rid of Ants Naturally (2026 Guide)

Natural ant control works when natural means low-toxicity and evidence-backed, not when it means kitchen folklore. Borax, a mined mineral salt, kills colonies through the same slow-bait biology as synthetic baits at a fraction of the toxicity. Sealed food, wiped trails and caulked gaps need no chemicals at all and decide most kitchen invasions alone. Peppermint oil, cinnamon and cucumber sound greener but evaporate or get walked around within hours, with no extension program behind them. Grade every remedy before buying it, and the greenest shelf in the store starts looking thin against the bait station and the caulk gun.

Key takeaway: borax-sugar stations plus sanitation and sealing clear most sugar-ant colonies naturally within two weeks. For example, a kitchen trail that empties a borax station in 48 hours usually goes quiet by day ten. Oils and spices only perfume the wait.

What natural methods actually work?

Three with extension backing. Borax baiting is the homeowner-scale colony killer: low-dose sodium borate in sugar syrup, carried home by foragers over days until queens fail. Maine’s least-toxic ant guide reports whole sweet-loving colonies dying within weeks on jelly-boosted borax programs, with no sprays needed. UC IPM sets the dosage logic behind it: under 1 percent active ingredient, slow enough that workers commute for days. Mix small batches, load enclosed stations, place tight to trails, refresh as syrup dries, and photograph each placement so refresh rounds miss none.

Know the enemy before baiting: odorous house ants run small, brown and fond of sweets.

Sanitation and exclusion carry equal weight with zero toxicity. Maryland Extension ranks identification, food removal and entry sealing as the program’s backbone: bin dry goods, wipe counters nightly, fix drips, empty trash daily, then caulk the mapped entries after traffic dies. Walk the exterior too: door sweeps that block light, weep-hole covers, sealed utility penetrations and vegetation trimmed off siding remove the bridges scouts commute across. Vinegar earns its place here as a trail-wiper, dissolving pheromone highways so scouts cannot follow old maps. The wipe resets foraging; the stations kill the colony. Neither works well alone.

Where does diatomaceous earth fit?

Dry voids only, thin layers only. Diatomaceous earth is fossil algae powder that abrades the waxy shell so crawling insects dry out, with no resistance possible by mechanism. UC Davis confirms effectiveness against ants, roaches, silverfish and bed bugs with one strict condition: it must stay dry and thin, since pests avoid heaps and damp clumps fail. Puff pest-labeled dust (never pool-filter or food-grade grades) behind outlet covers, under appliances and into wall voids with a bulb duster, wearing a respirator until air clears and keeping pets out of treated rooms until dust settles fully.

Oregon State’s pesticide center adds the safety fine print buyers skip: pest-control grade only, never pool-filter grade, with inhalation risk driving the cracks-and-crevices-only rule. Expect weeks, not hours: DE kills slowly as insects cross it repeatedly. Kitchens with mopping routines and bathrooms with steam defeat it fastest, which is why dusting follows drying in every sound plan. Pair it with borax stations rather than pitching it against them.

How do you mix a borax station ants actually take?

Start sweet, adjust by tasting traffic. Dissolve half a teaspoon of borax into a cup of warm sugar syrup, roughly under the 1 percent ceiling extension programs specify, and load bottle caps or soaked cotton balls inside enclosed stations. Maine’s recipe collection adds the foraging trick: lay a ribbon of plain jelly on masking tape near trails first, since excited feeding on jelly predicts strong bait uptake. If scouts ignore syrup after 48 hours, pivot to a protein version with peanut butter and a pinch of borax, because brood cycles flip cravings without warning. Label every station with contents and date, refresh dried syrup, and keep the whole operation behind appliances and inside cabinets away from kids and pets.

The evidence-grade ladder

Sort remedies into three rungs before buying. Proven covers borax stations, sanitation, exclusion and DE in dry voids, each with extension trials behind it. Plausible covers vinegar trail-wiping and boiling water on outdoor mounds, mechanically sound but colony-limited. Unproven covers oils, spices, cucumber, coffee grounds and ultrasonic plugs, all fading fast with no replicated backing. Spend money on the top rung, labor on the middle, and nothing on the bottom.

Which popular remedies should you skip?

The fragrant ones, mostly. Peppermint, tea tree, citrus and eucalyptus oils repel ants in petri dishes for hours, then evaporate off baseboards by evening while colonies reroute around the scent. Cinnamon lines, cucumber peels, coffee grounds and chalk barriers share the same arc: brief confusion, then business as usual. Ultrasonic plug-ins have failed unbiased trial after trial. None appear in any extension control program, which after decades of ant research says everything about their field value.

Carpenter ants sit outside the natural shelf entirely. Big black excavators tunneling damp structural wood need nest-finding, moisture repair and usually professional void treatment, as the removal guide details with its dusk-lure tracking method. Rutgers’ carpenter research does endorse baiting with multiple actives, which can absolutely run low-toxicity, but structural stakes plus satellite nests push most cases proward fast.

Carpenter ants play a different game: structural wood, satellite nests and professional stakes. Pantry remedies do not scale up.

What about outdoor mounds and boiling water?

Scald the grass, spare the queen. Boiling water poured on mounds kills surface workers and cooks the lawn into a brown crater while the queen reigns safely below. Outdoor bait stakes with the same slow borax logic reach her instead: foragers carry doses down across days. Space stakes around foraging zones, shield them from rain, and expect weeks rather than afternoons. Lawns recover from baiting untouched; they remember boiling water all season.

Proven, plausible or folklore? Decide in 60 seconds

Match the remedy to its rung and commit. When two rungs seem to fit, run the higher-evidence one first for two full weeks before layering the lower.

• Sugar ants on counters: borax stations plus sanitation plus sealing. Proven, start tonight.
• Trails to erase: vinegar wipe-downs before baiting. Plausible support act.
• Voids behind outlets: thin dry DE with respirator discipline. Proven where dry.
• Oils, spices, cucumber, plugs: folklore pricing with folklore results. Skip.
• Carpenter ants, pharaoh spread, wall voids: low-toxic baiting plus pro assessment. Escalate.

The ant hub gathers the family: removal tactics in get rid of ants, daily habits in prevent ants. Compare the full roster across all pests, and open the pro finder the moment structure, budding species or stubborn traffic enters the picture.

How to: How to Get Rid of Ants Naturally (2026 Guide)

Seal food, wipe trails, bait naturally, close gaps.

You'll need

• borax powder
• sugar and honey
• enclosed bait stations
• caulk
• airtight containers
• white vinegar

Tools

• flashlight
• damp cloths
• marker for dating stations

1. Starve the scouts

   Bin every dry good, wipe counters nightly, fix drips and pull pet bowls between meals. Hungry colonies take bait faster.

2. Wipe trails with vinegar

   Mop pheromone highways with diluted vinegar so new scouts cannot follow old maps. This resets foraging, not the colony.

3. Set borax stations

   Mix low-dose borax into sugar syrup, load enclosed stations, and place them tight to trails. Refresh every few days for two weeks.

4. Seal after silence

   Once stations sit quiet a full week, caulk entries, sweep doors and trim vegetation bridges. Keep one monitor station monthly and log its checks, since a single scout in spring warns months before a colony establishes.

Frequently asked questions

Does peppermint oil keep ants away?

Briefly at most. Lab repellency fades within hours as oils evaporate, and no extension program lists oils as a control method. Use peppermint as a pleasant wipe-down scent if you like it, but pair it with sealed food and caulked gaps that do the actual work.

Is borax safe to use around kids and pets?

Safer than sprays when handled right, not harmless. Borax is toxic if eaten in quantity, so mix small batches, place them in enclosed bait stations behind appliances, and keep stations out until a week after traffic ends. Read the package for pet specifics and store the box latched away.

Does vinegar kill ants?

It erases the pheromone trail they follow, which reads as control for a day. The colony behind the trail survives untouched and re-scouts within days. Treat vinegar as a cleaning step before baiting, never as the treatment itself.

Does cinnamon or cucumber repel ants?

No replicated evidence supports either, and extension reviews never list them. Ants walk around spice lines within hours once scouts find gaps. Skip the kitchen folklore and spend the effort on the bait stations and sealant that decide outcomes.

When do natural methods fail against ants?

Carpenter ants tunneling wood, pharaoh ants budding through buildings, and wall-void nests all outgrow pantry remedies. If three correct weeks of baiting plus sealing leave steady traffic, upgrade to gel baits with different actives or a pro with void-dusting gear.

Useful links (5)

1. Maine DACF / UNH Extension: Ant Baits (least-toxic control)— www1.maine.gov
2. UC IPM: Managing Odorous House Ants with Baits— ipm.ucanr.edu
3. Univ. of Maryland Extension: Ants, Indoor Insects— extension.umd.edu
4. UC Davis: Diatomaceous Earth for Pest Control— ucanr.edu
5. NPIC / Oregon State: Diatomaceous Earth Fact Sheet— npic.orst.edu

Photo credits

Thank you to Judy Gallagher, NY State IPM Program and Jacy Lucier for sharing these beautiful photographs and helping bring this guide to life.

Wikimedia Commons · CC BY 2.0 · CC BY-SA 4.0