Ants Under Hardwood Floor

Sugar and grease ants have no defensive sting or bite.
Ants under hardwood floor. I found this non toxic concoction and it works 2 cups water 1 3 cup of vinegar and 18 drops of essential oil either eucalyptus or peppermint. Ants in my sons room the entrance under this tiny hole in wood floor o man this is not good at all someone please help. They prefer to eat grease fats and meats and can move in a column of ants between the food and the nest. University of minnesota cooperative extension experts recommend baiting for ant colonies under concrete slabs.
Another small pest are sugar ants. Initially i was spraying to kill them. They may be made through hardwood plywood woodsiding trim sheetrock paneling or flooring. So here is my question the foors have gaps between them and now that the weather is warming large ants are coming into the living room and we assume through the flooring.
We do not want to use any harsh pesticides under the house to get rid of the ants and that would be an ongoing task as well. We have ants in the kitchen i think it started because our cats got a little messy with their food bowls. By watching this. Any water left standing on your hardwood floors can cause damage all the way down into your subfloors which is typically where the carpenter ants will attack.
After putting down a tray under the bowls the problem has gotten better but is not. Flooding is a common cause of damaged hardwood floors. If small ants are eating your meat pet food nuts and dead insects you may be able to trace them to flooring cracks. The ants are not in my cupboards they are coming from the cracks and gaps of my cupboards on the outside and my hardwood flooring.
Various ants live in. If damage is extreme the sapwood may be completely reduced to powdery frass with avery thin layer of surface wood. Indoors these ants nest in cracks and crevices of walls and cabinets under floors and behind baseboards. They are like mold thriving in moist humid rotting conditions.
Under the concrete slab.