Q.Yard and House Ants
Is it true that cornmeal kills common yard/house ants? Or is there another and less toxic way to kill them off without harming plants, pets, children?

Certified GKH Gardening Expert
Yes, cornmeal is often used in home remedies for treating ants. These articles should also provide suggestions for getting rid of ants: https://www.gardeningknowhow.com/plant-problems/pests/keeping-ants-of-flowering-vines-vegetables-and-flowers.htm, https://www.gardeningknowhow.com/plant-problems/pests/insects/get-rid-of-ants.htm