How to Get Rid of Grease Ants
Written by Jack Hayes
Last updated on October 17, 2026
Grease ants in your kitchen can be hard to stop, but the best way to get rid of grease ants is to identify them correctly, remove food residue, use the right bait, and seal the routes they use. Spraying the ants you see may cut activity for a short time, yet hidden workers can keep returning from a nest in a wall, cabinet, or outdoors.
These ants are tiny, easy to confuse with other species, and drawn to fats and protein. In this guide, we’ll explain what attracts them, where they hide, and which steps can help remove them. Writing Guide.
Key Takeaways
◉ Grease ants are thief ants, tiny yellowish or tan ants that are strongly attracted to fatty and protein-rich foods.
◉ Baiting works better than killing visible ants alone because slow-acting bait gives workers time to carry treatment back toward the hidden colony.
◉ Grease and food residue are major attractants, especially around stoves, appliances, pet food, trash areas, and pantry storage.
◉ Do not seal active entry points too early. Let baiting reduce activity first, then seal cracks and gaps to help prevent ants from returning.
◉ Professional help may be useful when ants keep returning, spread into several rooms, avoid bait, or disappear into walls and cabinets where the nest is difficult to locate.
What Is a Grease Ant?
A grease ant is the common name used for the thief ant, Solenopsis molesta. Penn State Extension’s 2026 guide describes workers as about 1/16 inch (1.5 mm) long, with yellowish or tan bodies. Their size makes them easy to miss until a trail forms around food.
Thief ants have two nodes between the middle and rear body sections and a two-segmented club at the end of each antenna. Those details are hard to see without magnification. They can look much like Pharaoh ants, so correct identification matters before treatment. The name “thief ant” comes from their habit of nesting near other ants and taking food and young ants.
Where Do Grease Ants Come From?
Grease ants can come from outdoor nests or hidden indoor spaces. Outdoors, thief ants nest in soil, under rocks, and in decaying wood. Indoors, they may use wall voids, cabinet voids, spaces under countertops, or gaps behind baseboards.
A trail in a kitchen does not tell you where the nest sits. Workers can travel through small cracks and follow set routes to a food source. In Monmouth County homes, warm summer weather can bring more ant activity indoors. If ants keep entering from the same area, check the route before sealing it so you can see whether the colony is inside or outside the structure.
What Attracts Grease Ants?
To get rid of grease ants, focus on the colony and the food sources supporting it, rather than killing only the ants you can see. Start by cleaning grease, crumbs, pet food, and other food residue from the active area. Then follow the ant trail to see where workers are entering.
◉ Place a slow-acting ant bait close to active trails or entry points. Choose a product labeled for indoor ant control and follow the label directions.
◉ Avoid spraying insecticide around the bait. Killing workers too quickly can stop them from carrying bait back toward the hidden nest.
◉ Keep counters, floors, pantry shelves, and spaces around appliances free of grease and food residue.
◉ Check the bait regularly and replace it as directed if ants continue feeding.
◉ Seal cracks, cabinet gaps, and other entry points after ant activity has dropped.
Bait performance depends on the product, placement, and the ants’ current food preference. Our guide on how ant bait traps work explains why bait placement and feeding behavior matter when treating an ant problem indoors.
How to Get Rid of Grease Ants in the Kitchen
To get rid of grease ants in the kitchen, remove the food they are using and place bait where workers are already traveling. Check the stove, backsplash, toaster area, pantry shelves, trash can, pet bowls, cabinet seams, and spaces under large appliances.
Wipe up oil and crumbs, wash food residue from containers, and move pantry goods into tight containers. Keep bait off food-prep surfaces and follow its label. If ants keep appearing on kitchen counters, trace the line to the nearest crack, pipe gap, or cabinet edge. Do not seal an active route until baiting has had time to work, or the ants may shift to another opening. US EPA
When Tiny Grease Ants Keep Appearing Around the Kitchen Stove
A homeowner notices several tiny ants crawling around the stove while preparing breakfast. They wipe down the counters, clean beneath the burners, and make sure no food is left out. The kitchen looks spotless, but the following morning, another line of ants appears near the same spot.
After several days of cleaning and using store-bought ant spray, the homeowner decides to call a pest-control professional. During the inspection, the technician follows the ant trail behind the stove and finds grease buildup in a hard-to-reach area. The ants have been using a small gap along the kitchen wall to reach the food source.
The technician identifies the ants and recommends suitable bait placement to help control the colony. The homeowner also cleans behind the stove and seals accessible gaps once the activity is under control. Over time, the ant activity decreases, showing why finding the source matters more than repeatedly killing the ants you can see.
How to Get Rid of Tiny Grease Ants
Tiny grease ants need careful identification before you choose a control method. Thief ants are among the smallest household ants and often look yellowish or tan. Pharaoh ants can look almost identical without magnification, and their treatment needs extra care.
If you see very small ants in several rooms, near warm wall spaces, or around plumbing, avoid guessing from color alone. Insecticide sprays can cause Pharaoh ant colonies to split and spread. A pest professional can identify the species when the ants are too small to separate by eye. For confirmed thief ants, cleaning, baiting, trail tracking, and sealing entry points remain the main steps.
How One Homeowner Felt After Getting Help With an Ant Problem
A homeowner contacted Agile Pest Control after dealing with an ant problem. They said the team communicated clearly, acted professionally, and provided a free estimate without pressure to sign up for service.
After choosing the service, the homeowner said the ant problem was taken care of and rated the experience highly. Their review reflects a common concern with ant activity: homeowners want to know what is causing the problem and what can be done about it without feeling pushed into a decision. Clear communication and a careful inspection can help homeowners feel more confident about the next step.
How to Get Rid of Grease Ants Naturally
Natural grease ant control works best as cleaning and sealing, not as a promise of instant colony removal. Start by taking away grease, crumbs, pet food, and open trash. Vacuum or wipe up visible workers, then wash the trail with soapy water.
Seal small gaps around baseboards, cabinets, pipes, doors, and windows once activity drops. Fix leaks and keep damp kitchen areas dry. These steps can make the home less useful to foraging ants and reduce new entry. For a hidden indoor nest, cleanup alone may not remove the colony. If ants keep returning, use a labeled bait or professional help, then follow practical ways to keep ants away.
Tired of Grease Ants Coming Back? It May Be Time to Call the Pros
If grease ants keep returning after cleanup and baiting, or the trail disappears into walls, cabinets, or several rooms, a closer inspection can help. Species identification matters when very small ants could be thief ants or Pharaoh ants.
Agile Pest Control can inspect ant activity, look for entry routes, and explain suitable control options for the situation found in your home. Professional help is a practical next step when you cannot locate the source, ants keep avoiding bait, activity spreads, or you are not comfortable placing pest-control products around a kitchen, children, or pets.
Frequently Asked Questions About Grease Ants
Are grease ants the same as thief ants?
Yes. Grease ant is a common name for the thief ant, Solenopsis molesta, a tiny yellowish ant that often feeds on greasy, fatty, and protein-rich foods.
How long does grease ant bait take to work?
Grease ant bait may take two weeks or longer to work. Slow-acting bait gives worker ants time to carry the treatment back toward the hidden nest.
Why do grease ants ignore my bait?
Grease ants may ignore bait if easier food is nearby, the bait has dried out, or its ingredients do not match the colony’s current food preference.
Can grease ants live inside walls?
Yes. Grease ants can nest inside wall voids, cabinets, behind baseboards, and under countertops, making the colony difficult to locate without following their active trails.
Are grease ants dangerous?
Grease ants are mainly nuisance pests, but they can get into packaged food. Discard contaminated food, then clean nearby storage areas and ant trails thoroughly.
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