You want to make sure your pets remain safe when fighting yard ants. Biodegradable ant-killers will not harm dogs or cats. It’s also best to use an all-purpose active ingredient spray.
Some pesticides are harmful when wet but are safer when dry. If you use diatomaceous earth, check to see if “food grade” is on the label. This will also protect your pets.
Indoxacarb is a low-toxin pesticide. It is the chemical ingredient used for ant-bait stations. the house. Also, with outdoor pesticides, make sure they say “barrier treatment” on their labels.