Re: Ant control
Summer1052, Crazy ants came along and helped my get rid of Fire ants. Soapy water works on fire ants to a degree, they cannot bridge it. Did not see how the Pyrethin spray or ground soak worked as the FAs were gone before I tried that. Strong soapy water in some what large containers will hold through a good rain, but water, grease, oil, dynamite takes a lot of supervising to maintain a good defense. I do believe that when/if you knock back a big attack then later if you can discourage/block the scouts you win.
When using straight water, and you see an ant bridge, spray with soapy water and the bridge will hit the bottom like magic. Real satisfying!
Anyway, here is hoping you succeed.
I do think you need to keep the hive full of bees, I did remove supers to crowd my bees a bit and that seemed to help.
Julysun elevation 23 feet. 4 Hives, 2 years.