I just KNEW that grits had to have a useful purpose on this earth, now
it looks like one has surfaced.

Grandpa John

Jim Carlock wrote:

The hominy grits you buy at the grocery store will kill all
sorts of ants when they injest it. Pour some grits directly
on the ant pile. They all should disappear by the next day.

Seems to be safe for the garden and very cheap.