boric acid v. 20 Mule Team borax
My beds, yard, and walkways have been invaded by colonies of small, black, stinging (I think, unless something else got me yesterday) ants that raise sandy-looking mounds. I think they killed everything in a 3 sq ft section of one bed with their excavations, and I'm allergic to ant stings, so I can't live and let live with this bunch.
My question: will inexpensive laundry borax do the job as well as expensive boric acid from the drugstore? And what is the effect of borax on plants?
Any other non-grisly ways to deal with them en masse?