I use powdered sugar and boric acid. Mix two teaspoons each with hot water in a small container and place in their path. Change when you have a large amount of dead ants. Wipes out entire colonies in a short period of time. Use more water than powder and they will sink to the bottom.
I use powdered sugar and boric acid. Mix two teaspoons each with hot water in a small container and place in their path. Change when you have a large amount of dead ants. Wipes out entire colonies in a short period of time. Use more water than powder and they will sink to the bottom.