How to identify and treat Asian needle ants

Asian needle ants are an invasive species that have been in the US since the 1930s but have recently become a more common pest in certain parts of the country. The worst part of these pest ants is the brutal stinger that they use to defend themselves.

These ants start showing up in early spring and remain active throughout the fall. They’re known for their ability to outcompete other ant species and eliminate their colonies from their claimed territories.

Luckily, Asian needle ants aren’t as aggressive as fire ants, and their colonies are much smaller, so you’re less likely to come into contact with them.

These ants love sweets and will wander into homes to find any sugary substances left on floors or counters. However, they are also predators, going after termites, other ant species, or small insects. Their adaptability allows them to survive in a variety of environments.

Asian needle ants have dark brown to black bodies with noticeably lighter legs and antennae. Their antennae are elbowed and shorter than their body, and they possess a stinger that can be used defensively. Another way to tell if you have an Asian needle ant is to capture it in a glass jar and see if it can climb the walls. Asian needle ants can’t cling to slick surfaces, unlike other household ants.

How big are Asian needle ants?

The workers are about 1/5 of an inch long.

While they are originally from Asia, Asian needle ants are predominantly found in the southeastern US but are spreading to other regions.

Dealing with Asian needle ants is similar to dealing with other household ant pests. The best way is to prevent them from coming inside in the first place.

• Remove Attractants: Keep your yard clear of debris and standing water where these ants can nest.
• Seal Entry Points: Caulk cracks and crevices around your home’s foundation, windows, and doors to prevent entry.
• Maintain Yard: Trim back vegetation from the house to remove ant pathways and reduce moisture around the building.
• Clean up sweets: Make sure you clean up any sugary drinks or spills on floors or counters.
• Insect barrier: Additionally, you can use a perimeter spray to keep ants from marching inside. Pestie offers a simple DIY solution that incorporates the same ingredients the pros use.