10 Best Ant Killers 2025 in the United States

The TERRO T300B Indoor Liquid Ant Killer is a highly effective solution for those dealing with indoor ant infestations. It comes with 12 bait stations, making it versatile and convenient to place around your home in ant-prone areas like baseboards, corners, and counters. The active ingredient, Borax, is designed to attract and kill various types of common household ants such as acrobat, crazy, ghost, little black, odorous house, and pavement ants.

The bait is easy to use with no setup required; simply place the bait stations where ants are most active. One significant advantage is that the bait is carried back to the colony by worker ants, ensuring that it eliminates not just the visible ants but also those hidden within the colony, thus providing a comprehensive solution to your ant problem. Users have reported noticeable reductions in ant activity within days. However, while it's highly effective for indoor use, it may not be suitable for outdoor applications.

Safety-wise, it's important to keep it out of reach of children and pets, as Borax, despite being a low-toxicity component, can be harmful if ingested. This product is ideal for those looking for an easy-to-use, effective indoor ant killer that provides quick and thorough results.

The Ortho Orthene Fire Ant Killer1 is designed to tackle fire ants effectively by targeting and killing the queen, which helps to destroy the entire mound. This product is particularly potent, with the capability to treat up to 162 mounds and starts working in just 60 minutes. It is suitable for outdoor use, making it ideal for lawns and ornamental plant areas like flowers, trees, and shrubs.

Ease of application is a significant strength, as it only requires sprinkling over the mound without the need for watering-in. A notable convenience for users looking for a quick and efficient solution to fire ants. Safety-wise, users should handle it with care, especially around pets and children, as it is a chemical insecticide.

Pairing this product with the Ortho Fire Ant Killer Broadcast Granules can provide up to six months of prevention for new mounds, which is a great addition for long-term control. However, this product is specifically for outdoor use and may not be suitable for indoor ant problems. It might also be less effective against ant species other than fire ants.

The TERRO T901SR Ant Killer Plus is a versatile outdoor ant-killer that also targets various other insects like fire ants, cockroaches, and fleas. It comes in a convenient 2-pack with resealable shaker bags, making it easy to apply without the need for additional tools.

The granules are fast-acting, reportedly killing insects within 24 hours, which makes this product effective for quick pest control. It is designed for outdoor use, especially around house foundations and lawns, and can be used as a spot treatment on ant hills, which helps in keeping insects at bay. However, it is not suitable for indoor use, which could be a limitation for those looking to manage pests inside their homes as well.

Safety-wise, the product does not specify if it is pet-friendly, so caution is advised if you have pets. Measuring 3.2 pounds per bag, its size is manageable for most users. It is advisable to consider individual needs and potential safety precautions when using chemical pest control methods.