Field Ant

Field Ant Identification and Control

Correct identification is an important first step in pest control.

Side view of a Field ant under a microscope
Formica spp.
How To Identify a Field Ant

Field ants can be all black in color or reddish brown and black. They have one node (bump between middle and rear body sections). Field ants are often mistaken for carpenter ants, but are not as likely to forage indoors. They also have a depression in the their thorax which differentiates them from the carpenter ant. Field ants vary in size and are most commonly found in yards and gardens. 

Where Do They Come From

Field ants nest outdoors in loose soil. They may produce mounds (sometimes incorporating twigs, dried leaves and other plant materials) in exposed areas or nest under rocks, logs, etc. They do not frequently come indoors. 

Need Help Controlling Ants?
Red/orange colored Field ant eating yellow gel

Where Do They Live

Open fields, woodlands, decaying or soiled logs 


Photo to the left by Joseph Berger,

Formica spp.


4-8 mm, can vary


Honeydew, sweets, and insects

Tips & Tricks

Front of a tan home with a green lawn in front

How To Keep Ants Away

  • Trim back any shrubs or trees that come into contact with buildings. When plants touch a home or building they create an easy way for ants to crawl onto and access the building.
  • Seal all potential ant entryways. Common entry ways are around windows, doors, and utility lines.
  • Keep dry pet food in sealed bins and clean up any spills.
Head view of a Field ant under a microscope

How To Get Rid Of Ants

  • Try to locate and destroy all nests by following ant trails from food source to the nest.
  • Use an insecticidal bait, especially during winter through early spring with populations are small.
  • Controlling these ants is hard, so consider hiring a pest management professional to help.

Don’t let ants take over. Thorn can help.

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How Thorn Can Help

Ants can be difficult to control, but that’s what we are here for. We use a two treatment plan to gain control of your ant problem.

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Thorn's Approach

We take a scientific approach to ant control. We start with an inspection and assessment to help us identify the ants, locate where they are, and create a specific plan for your property. Every home and business is different and requires a unique strategy.


Our Approach to Pest Control

Proper pest management starts with a detailed inspection and assessment from an expert pest professional before treatment. Thorn Pest Solutions uses a three-step process rooted in science to eliminate pests with long-term results.

Driven By Science. Lead By Service.

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Assess Situation

First, we identify the root problem(s) with a site assessment. Pests are almost always an indicator of an environmental condition. This will determine the best actions to provide short and your long-term results against pests.

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Execute Action Plan

Next, we develop a plan to fix the problems we discovered. This includes solving current pest issues, eliminating conducive conditions, and monitoring for future pest activity. Good pest management starts with a good plan.

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Track Success

Lastly, we implement the solutions we developed including inspection, monitoring, and preventing future pest infestations. Good pest control requires a good offense and not just defense. Prevention is key.

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