I just looked up terro.
it's boric acid, just with an inflated price. way inflated! you can get a lifetime supply from the hardware store, you just have to mix your own bait.
Why don't you just bake them some cornmeal bread? Well, the pepperming oil doesn't fit, but the ingredients are pretty close!What if we mixed the cornmeal, and powdered sugar with the baking soda, and maybe a touch of cinnamon, with peppermint oil to hold it on an index card
IMO, the ants would be drawn to those substances. What does work, though, is ordinary white chalk. (Actually, any color would work, but colored chalk often leaves stains.) My grandmother used to draw a chalk line around every window and along every exterior door sill in our house every spring. We had ants all over the place outdoors, but nary a one inside the house. (I used to laugh at her chalk lines, but I was a smart-alecky brat of a kid. )Ozark Lady wrote:I have also heard that ants won't cross lines of white flour, white sugar, or orange peels, not sure it is so. And not so sure that I want those on my window sills to keep ants out either.