DO NOT disturb the mound . Sprinkle gently to avoid disturbing the colony and washing the granules off the mound. Dursban , Talstar , Deltaguard G, Pinpoint 14 and diazinon are all examples of granular contact insecticides. Granules Back To Top Remember, application of less than the recommended amount of water with either liquid concentrates or granular insecticides provides poor results. Unless the product completely penetrates the mound, ants will move to a different site via underground foraging tunnels to avoid the poison.
Some products come in aerosol containers to which an injection rod is attached.
The rod is inserted into the mound and the insecticide injected according to label instructions. Baits also are formulated to impact the queen. To kill a fire ant colony, you must kill the queen. Low Toxicity and Nonchemical Treatments . Diatomaceous earth, a natural silica-based dust, kills some ants but is not very effective when the soil is moist, and it rarely eliminates ant colonies when used alone.