Posted by John Fasoldt on 19:00:00 3/7/2012 from 188.8.131.52:
In reply to: Citronella ant swarm + workers posted by Matt on 17:46:41 3/7/2012 from 184.108.40.206:
They're really harmless, no need to do anything, actually. They usually nest under slabs, so if you can get some liquid insecticide under the slab, you can stop it. At least in THAT place and for the present. Remember, however, they can surface in other areas later on.
See if you can find where they're coming from, usually it's a crack or a seam in the slab. You would have to bleed insecticide down that crack. It may (or may not) work. But, as I said, they are absolutely harmless.
I usually resist treating for anything that's harmless, and these are. Truthfully, you're already using the best cure for these - the vacuum.
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