Habitat
Ghost ants thrive in warm, humid environments, However, these adaptable ants can establish colonies in various climates, especially when they find warm, moist areas indoors.
Outdoors, ghost ants nest in soil, within flowerpots, under rocks, or even in piles of leaves. These insects are versatile nesters and can quickly relocate their colonies when their nest is disturbed. Indoors, ghost ants are drawn to areas with consistent warmth and moisture, often nesting in wall voids, under sinks, and inside potted plants.
They are also known to nest around windows, bathrooms, kitchens, and other areas where they can access water and food easily.
Ghost ants in America
Ghost ants have been moving into urban and suburban environments in North America over the past several decades, likely due to global trade and the movement of potted plants.
In the United States, ghost ants are most commonly found in southeastern states, including Florida and parts of Texas, where warm weather is available all year round. However, ghost ant populations are growing, and they have been reported in indoor environments in more temperate regions.
These ants have proven to be highly adaptable to urban settings, where they can easily find food and water sources and exploit the small cracks and crevices in homes and buildings to establish colonies.
Ghost ant behaviors, threats, or dangers
Though ghost ants do not pose a direct physical threat to humans, their behaviors can cause serious issues in homes, gardens, and businesses.
Household nuisance: Ghost ants are highly attracted to sugary foods and are known to create long trails to food sources, quickly turning kitchens and pantries into ant thoroughfares. Because of their small size and nearly invisible bodies, it can be difficult to identify where ghost ants are entering the property, and they can often establish several nests throughout a home, creating a network that is difficult to control.
Agricultural and horticultural impact: Ghost ants have a mutualistic relationship with aphids and other honeydew-producing insects, which they protect in exchange for food. This behavior can lead to increased aphid populations, which may damage plants and crops. The ants can contribute to garden and greenhouse issues if left unmanaged, impacting both ornamental and edible plants.
Risk of contamination: Ghost ants can contaminate food sources as they forage, creating potential health risks for homeowners and commercial kitchens. Because they travel quickly from room to room, ghost ants can spread bacteria or other contaminants they pick up, making them a concern for areas with food storage or preparation.
See our blog section for more facts about ants.