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 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.

The TERRO T1813B Outdoor Ready-to-Use Liquid Ant Bait Stake Killer Trap is designed to tackle common household ants, making it a practical solution for outdoor ant control. This product includes 12 bait stakes, making it easy to cover a larger area. It targets various ant species such as acrobat, crazy, ghost, little black, odorous house, and pavement ants, which are typically found around homes. The bait attracts ants quickly, and as the worker ants take the bait back to their colony, it helps in eliminating the entire ant population, including those not immediately visible.

Users can expect to see a significant reduction in ant activity within a few days of application. The ease of application is a significant benefit; simply insert the stakes into the ground and cut the tab to activate them. However, it's important to note that this product is designed for outdoor use only, so it won't be effective for indoor ant infestations. Safety is also a consideration; while the stakes minimize direct contact with the bait, they should still be placed out of reach of children and pets.

The compact and lightweight design (weighing only 0.19 kilograms) makes it easy to handle and place around your yard. One potential drawback is that the effectiveness can vary depending on the severity of the infestation and the species of ants. Additionally, the bright orange color might not blend well with all outdoor environments. This product is best suited for those who need a straightforward and hassle-free method to control ants in their yard before they become an indoor problem.