Harvester ants (pogonomyrmex species) are a familiar sight in many parts of Florida, especially in dry, sandy areas. The large mounds and bare nest zones can quickly change the look of a lawn or garden. While they stay outdoors, their behavior often brings them close to homes, where they can disrupt landscaping and outdoor activities.
Identification
Unlike crazy ants that move in erratic lines, harvester ants (also known as red ants) create clear trails to forage and find food sources. If you see a large ant with a blocky head carrying a seed across the bare ground, there’s a good chance it’s a harvester ant.
Harvester Ant Habitat
Harvester ants like dry, sandy areas with full sun. You’ll find them in open spaces like arid grasslands, lawns, and playgrounds. Moderate to large in size nests often have multiple entrances and are surrounded by bare soil where plants have been removed. This loss of vegetation damages landscaping and can cause erosion. Although they mainly stay outside, harvester ants can nest near homes, such as in garden beds and grass.
Harvester Ants in Florida
As the name implies, these ants harvest seeds. Grass seeds make up the majority of their diet. Harvester ants are large and build distinct mounds in open grasslands and deserts in the Florida area. They use their strong jaws to grind seeds down and then place them in storage areas called ‘granaries‘ in their nests.
Harvester Ant Behaviors, Threats, or Dangers
Although they do not invade homes, harvester ants can be pests on lawns and playgrounds, where people may get stung. They will readily attack humans and smaller animals leaving the sting in the wound. Their sting, though not as painful as some other ants, can still cause discomfort. In sensitive individuals, an allergic reaction may occur which can lead to anaphylactic shock. You should seek medical advice if symptoms appear. If you suspect a harvester ant infestation, immediately contact a professional ant exterminator.
Are Harvester Ants Hard to Get Rid of?
Nests can extend deep underground, which makes surface treatment ineffective. Some homeowners try DIY methods to get rid of harvester ants, but this rarely offers a lasting solution. Professional ant exterminators can target the colony to control and manage the infestation.
How Many Harvester Ants Count as an Infestation?
One mound doesn’t always mean trouble. However, if you notice several in your yard or see consistent daytime activity, a larger nest may be nearby. Swarming behavior or flying harvester ants can also suggest that the colony is mature and growing. In these cases, it’s best to have experts check the area.
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Frequently Asked Questions
What Attracts Harvester Ants To Your Property?
They’re drawn to dry soil and open ground, in sunny areas making them a common ant in the Florida climate. Grass seeds and similar food sources also attract them.
Are Harvester Ants Dangerous?
Their sting is painful and can be dangerous in some individuals. Some species, including the Florida Harvester ant, can be fatal for humans and animals. If stung, consult a healthcare provider.
Can Harvester Ants Damage My Garden Or Lawn?
Yes. Their nesting behavior strips away plants and leaves bare soil, which can affect lawn health.
What Are The Signs Of A Harvester Ant Infestation?
Look for cleared soil patches, visible mounds, and daytime ant activity. Swarms of winged ants may also indicate a growing harvester ant colony.
