I managed a large vineyard in Texas. When I took over, we had massive problems with ants. The owner was using lots of chemicals to kill them with little impact. I sprayed twice with a 1:50 ratio, and the ants were gone. I made two applications one week apart to start. After that, I applied two more applications a month apart.
I was told by an agronomist that the sugars bloat the ant, and because they have an exoskeleton, this holds in their bloated bodies, and they die.
You can purchase molasses inexpensively in bulk at feed mills by the gallon.
Also, Heterohabditis bacteriophora (beneficial nematode) are adapted to all climates and are most effective against ants and many more pests. There are several companies that sell these.