Plan the perfect garden with our interactive tool →

How to Kill Underground Ants

...
Jupiterimages/Photos.com/Getty Images

Soil dwellers, ants live in large colonies dominated by a breeding queen. They construct a diverse tunnel system. The ants carry soil sediment to the surface while mining out the cavities and corridors of their home. The sediment can produce a large, unsightly mound in the middle of a pristine lawn. Some ants, such as red imported fire ants (Solenopsis invicta), pose a serious risk to pets and humans through their painful bites. Killing the entire underground community can successfully manage an ant mound problem.

Mix an insecticide ant drench with water in a watering can or garden sprayer. Follow the directions on the insecticide's label to successfully mix the substance. Use 1 to 2 gallons per mound.

Pour the insecticide drench slowly over the mound. Thoroughly drench the mound to successfully kill all ant inhabitants, even the ones deep within the tunnel system of the mound.

Sprinkle dry, powdered ant insecticide over the mound. Follow the directions for applications. Use a product that contains acephate, deltamethrin or cyfluthrin to successfully kill fire ants.

Rake the ant mound as flat as possible right before applying diazinon granules. Follow the directions on the diazinon label to determine the correct amount of granules to use. Sprinkle the granules across the ant mound and rake gently. Spray the ant mound with water lightly.

Tip

Liquid insecticide drenches kill the entire mound in approximately three hours. Powdered insecticides take two or three days to successfully kill the mound. Diazinon granules will kill the ants within an ant mound, but may take several applications to successfully eradicate the entire mound. Insecticides containing acephate produce a strong and unpleasant odor at the mound for several weeks.

Warning

Keep children and pets away from any ant mound treated with pesticides.

Related Articles

Lawn Treatment for Fleas & Fire Ants
Lawn Treatment for Fleas & Fire Ants
How to Get Rid of Ant Piles on My Lawn
How to Get Rid of Ant Piles on My Lawn
How to Kill Army Ants
How to Kill Army Ants
Use Lime to Get Rid of Ants
Use Lime to Get Rid of Ants
How to Get Rid of Ants Caused By Heavy Rain
How to Get Rid of Ants Caused By Heavy Rain
How to Get Rid of Burrowing Bees
How to Get Rid of Burrowing Bees
How to Kill Ants in a Florida Yard
How to Kill Ants in a Florida Yard
How to Kill Bull Ants
How to Kill Bull Ants
How to Kill Red Velvet Ants
How to Kill Red Velvet Ants
Dirt Mounds Caused by Insects
Dirt Mounds Caused by Insects
How to Get Rid of Ants in the Garden
How to Get Rid of Ants in the Garden
Outside Home Remedy to Get Rid of Gnats
Outside Home Remedy to Get Rid of Gnats
Will Permethrin Kill Ants?
Will Permethrin Kill Ants?
How to Kill Fleas Outside in Patio Areas
How to Kill Fleas Outside in Patio Areas
Garden Guides
×