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Cornell University : Cornell Cooperative Extension
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Ants in the Home |
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There are many varieties of ants that may be found in a residence. While some may be actual pests doing damage, some are occasional visitors in search of food, water, or a new nesting place. They are often nuisance pests, feeding on household foods and often contamination may occur. Some varieties may cause structural problems, damaging wood or undermining slabs and patio stones. The first step in instituting a control program is to locate the ants nest inside the house, or find their source of entry into the home. Note their path, the type of surfaces that they cross, and try to determine their paths before and after feeding. This may not be any easy job as ant nests may be hidden between floors and subfloors, in walls between joists, or behind baseboards in decaying or rotting wood. The most common key is moisture. Check near leaky or swearing plumbing, beneath roof leaks, at window or door installations. It may be advisable to drill into a location to check for the presence of ants, but it may not always be possible. The next step is to thoroughly clean the infected area and the nesting site. If the entrance can be determined, seal it securely with a caulking compound. Ant traps are useful for most, but not all types of ants. These contain baits of boric acid or poisons, which attract the ants to the poison without the need for applying poison throughout the environment. Keep these out of the reach of children and pets. If problems persist, it is possible to apply a residual insecticide on a spot treatment basis. For interior applications, be certain to follow manufacturer's directions carefully, never use them in food preparation areas or in an area where children or pets may come into contact with them. If you need to treat any cracks or crevices, it is not necessary to treat an entire wall or floor. In the event that you cannot access the nests directly, it may take a few days for the treatment to become effective as the ants need to come into contact with the residual insecticide deposit. If outside activity is noticeable, apply an insecticide to foundation and surrounding soil can be effective. Again, be sure to follow directions carefully and do not expose to children or to pets or their play areas. Never use residual sprays and baits in the same immediate area as the residuals are repellent and will make the baits useless. A "home remedy" still being tested is the use of boric powder and confectioners sugar, which the ants carry back to the nests. Ants often search for sweets or grease as a source of food. Prevention is still the best remedy to avoid ant infestation. Keep all foods securely covered in tight containers. Avoid moisture collection in the home. Repair any cracks in foundations, or masonry where insects may enter. If ants continue to appear after treatment, they are probably entering over untreated surfaces. You may wish to consult a pest control operator. Cornell
Cooperative Extension Yates Association |
