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Getting Rid of Ants in Your Home
If you're tired of seeing ants in your home, trailing from the door to the kitchen in search of tiny specks of food, your best bet is to learn about the different types of ants and how to get rid of them. Chances are, you have one of the nine most common types of ants found in and around the home.Continue to 2 of 10 below.
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The pavement ant is one of the most common ants in the US and is found in all 50 states. It has a brownish black body and pale-colored legs and can be distinguished by the two spines at the end of its thorax (between its body parts). To get rid of pavement ants:
- Follow the ants' trail to identify the path they follow, even if you can’t find out where the ants are coming in.
- Place ant bait stations along the trail you identified, following all label directions. The workers will find the bait,... carry it back to the nest, and feed the queen, eliminating her and future populations. If the ant trail leads you to an outdoor, below-ground nest, drenching the nest with an approved insecticide spray (following all label directions) can be effective.
Note: Do not spray indoor ants, as you will just kill the workers, and more will be sent out to forage.Continue to 3 of 10 below.
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Carpenter ants nest in moist, decaying wood outdoors and in homes and buildings. If infestations grow, they may also expand into sound wood. These ants usually have more than one nesting site, including a parent and satellite colonies. To control carpenter ants:
Continue to 4 of 10 below.
- Trim trees and shrubs away from the home, and caulk all wire and cable penetrations through exterior walls. Remove or repair aging or decaying wood on or around the home.
- Apply a granular or liquid insecticide to an area about 2 to 4 feet... wide all around the perimeter of the home, using a product labeled for controlling carpenter ants. It's usually best to apply the insecticide in the spring and fall.
- Find the carpenter ant nest(s), and apply a chemical insecticide directly into it and along its tunnels and trails. However, because there can be multiple nests, it can be difficult to locate them all, particularly the main nest, which is often outdoors.
- Place insecticide baits labeled for carpenter ants in areas where they travel.
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Odorous House Ants
The odorous house ant will nest just about anywhere: under stones, logs, mulch, or debris; in the nests of birds or mammals; and inside homes, in walls, window frames, and insulation. To control odorous house ants:
Continue to 5 of 10 below.
- Keep the ants out of your house in the first place trimming back trees and shrubbery away from the house.
- Use baits to kill ants that have gotten into the home. Ant baits can be purchased at most home and garden stores. Following all label directions, place the bait where ants have been... seen to travel.
- Apply insecticide around the perimeter of the home and under siding to help keep ants from crawling in. You can do this yourself or hire a pest control professional.
- Locate the ants' nests, if possible, and treat them with a properly labeled insecticide. In some cases, however, the ant species will have multiple colonies, so treating a single nest will not relieve the problem.
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Red Imported Fire Ants
It is virtually impossible to entirely eliminate fire ants because of all the areas they infest. However, fire ants can, and should, be suppressed or reduced in areas in which they can cause harm or damage. When controlling fire ants:
Continue to 6 of 10 below.
- Baits are the most effective product for ant control because the worker ants will carry it back to the nest to feed – and poison – the nesting ants, eliminating the colony in that nest.
- A broadcast application of insecticide (labeled for fire ants) can be used in... lawn areas where multiple nests are located or wider control is desired. This can also be used as a preventive control against ants that attempt to move into the area while the chemical is active. These tend to be granular products that are applied with a push-type fertilizer spreader, then watered.
- If there are only one or two fire ant mounds, you may opt to treat each mound individually rather that with a broadcast application. However, this can take more time and may use more insecticide.
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Thief Ants or Grease Ants
Thief ants, or grease ants, that are found to be nesting indoors are best eliminated through baiting. This can be as simple as placing a small amount of greasy bait near the areas in which the ants have been seen. When controlling grease ants:
Continue to 7 of 10 below.
- Baits are not effective if the ant is nesting outdoors. Instead, the best option is to locate the nest and treat it directly. To locate a nest, follow the trail of ants backward from the food source.
- If the outdoor nest cannot be found, a perimeter treatment... of the home can help to keep outdoor-nesting ants from coming indoors to forage for food – or set up new nests.
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Pharaoh ant colonies can get extremely large include many nests. A single colony can have a single or multiple queens, with populations numbering in the several thousand. This ant expands its colony and creates new ones through budding: A queen and accompanying workers leave the current ant nest and walk to a new site to start a new colony. When controlling pharaoh ants:
Continue to 8 of 10 below.
- Use bait, the most effective method. The worker ants will carry the bait back to the nest to feed — and poison — the nesting... ants, eliminating the entire colony instead of just the foragers.
- Drenching of the nest is not an effective treatment for ants that expand their colonies through budding. At any disturbance or threat, the ants can bud, and if it has multiple queens, you can end up with multiple ant colonies instead of the one you started with.
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Ghost ant colonies have multiple queens and multiple nests, and are very mobile. Control is difficult because of the many nests that often make up a colony. Therefore, even a direct-nest spray treatment may not contact all members of all interrelated colonies. Like the pharaoh ant, ghost ants expand their colonies through budding. The same control techniques used for pharaoh ants are effective for ghost ants.Continue to 9 of 10 below.
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Argentine ant colonies have many nets and many queens, numbering in the hundreds, with thousands of workers to tend them. Additionally, a colony that is eliminated within a structure will often soon be replaced by another colony. Therefore, it is critical that all Argentine ants in an area, both within and outside a building, be found and eliminated at once. Because Argentine ants expand through budding, control them using the same techniques used for controlling ghost ants or pharaoh ants.Continue to 10 of 10 below.
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Field ants build mounds in lawns that can extend up to 4 feet in diameter and as high as 2 feet tall. They also nest in firewood and other such piles. To control field ants:
- Completely saturate the ant mound with a pesticide labeled for mound application of field ants. Increase the amount of water, if necessary, so the insecticide completely penetrates the mound.
- Seal or repair of gaps, cracks or other ant entry points to help keep the ants out of your home.
- Apply non-repellent insecticide, labeled... for this purpose, around the perimeter, up and along the foundation wall, around doorways and windows, and beneath siding.