Wrigley's gum. The one in the white package, spearmint, I think. It only works with this kind of gum. Just put a piece of gum (still in the wrapper) where ever you need too. I put them in my cupboards, each shelf of the pantry. No bugs. When we were moving and had to pack up half of out house and have it in storage for 6 months, I put a stick of gum in each box. There were no bugs in any of the boxes when they were unpacked. It is a very inexpensive way to keep the bugs away.