I'm dying to ask: some of you are talking about using Argo starch. Are you talking about Argo Corn Starch? I use it for cooking and it's readily available in the baking aisle at the grocery store.
I've read many people's comments that starch attracts bugs. I don't know if it's all starches - commercial and homemade, or if it's only the homemade versions. I don't often use starch, but when I do, it's Sta-Flo because it keeps forever and it's easy to control the dilution.