Q. What is the best way to get ants out of my potted plants outside?
A. The best chemical control method I have seen is a bait product made for several kinds of ants and manufactured by Amdro. I am sure other companies that make similar products are just as good. Ants take this bait back to the nest where it is fed to the queen as well as other ants. Control of ants is within 24 hours if done right.
The usual reasons for failure are because the bait was not placed near the nest or because it became wet. If you use it, find the nest or opening to the ground. Place it near the nest in the ground. This product must be used dry so use it in containers when it is cool and after an irrigation. Read the directions for this bait and follow them precisely.