The state of Missouri (US) belongs to the red ants in the summertime. They
are everywhere.

They congregate around my back door or get into the detached garage, it
bothers me. In the lawn I don't much mind.

I've been using Diazenon powder to control 'em. It kills many but doesn't
repel 'em. They keep coming back.

Anything on the market that effectively repels red ants but won't
cause serious problems for pets, etc?

Thx,
Will