Your weight and general health play a role in determining toxic doses. This slow kill allows time for the worker ants to consume the bait and head back to the nest to share with the rest of the colony. Terro Ant Killer Liquid Ant Baits Pre-filled 1 Pack Although it is best to keep your pets away from the ant kill, the ingredients in terro have a low toxicity and are unlikely to harm your pet. Will terro ant bait kill dogs . Terro ® liquid ant bait is a sweet food based product similar to pancake syrup combined with borax. There are a large variety of ants that will turn to our sweet liquid ant bait. 866 mg/kg (female rat, technical); In fact, the ld50 ratings are tested on rats, mice and dogs (back in the late 60s). If less than 1 oz. Most ant baits contain insecticides as active ingredients such as abamectin, chlorpyrifos, indoxacarb, hydramethylnon, hydramethylnon, fipronil and boric acid. As ants return to their colony, they end up poisoning the others which ev...