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Molasses (and milk) contaminate the mounds with sugar and cause mold, spoiling the brood. The ants abandon the mounds treated with these sugars. It works pretty darn well in my yard in Tx, but only on individual mounds. I plan to try the TA&MU approach of a yearly broadcast of a fire ant bait product containing organic approved spinosad containing granuals then following up with the molasses/Dawn treatment on any mounds that survive.