Sugar.....Really......I have about 400-500 pine stumps to rot from a recent cutting around my house, havent heard about the sugar thing, Im sure that would attract every fire ant within a 10 mine range, but that is what Im doing now is letting the fire ants build thier mounds on them, I would say that at least every other stump has ants building on them and I know they will rot a stump out too! But if I add fuel to the fire....ie. SUGAR....I bet they would work over time to rot them for me, I thought about salting them, but I want to eventually plant these areas for wildlife, so I really didnt want to do the salt thing. Jinman have you tried the salt deal????? Did it seem to speed the process?????