Pharoah Ant control and extermination in MN and WI.
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The Pharaoh ant colony consists of queens, males, workers, and immature stages (eggs, larvae, pre- pupae, and pupae). Nesting occurs in inaccessible warm areas near sources of food and/or water, such as in wall voids. The size of the colony tends to be large but can vary from a few dozen to several thousand or even several hundred thousand individuals. Approximately 38 days are required for development of workers from egg to adult. Mating takes place in the nest, and no swarms are known to occur. Males and queens usually take 42 days to develop from egg to adult. The males are the same size as the workers (2 mm), are black in color and have straight, not elbowed, antennae. Males are not often found in the colony. The queens are about 4 mm long and are slightly darker than the workers. Queens can produce 400 or more eggs in batches of 10 to 12. Queens can live four to 12 months, while males die within three to five weeks after mating. Part of the success and persistence of this ant undoubtably relates to the budding or splitting habits of the colonies. Numerous daughter colonies are produced from the mother colony when a queen and a few workers break off and establish a new colony. Even in the absence of a queen, workers can develop a queen from the brood which is transported from the mother country. In large colonies there may be as many as several hundred reproductive females.
If you believe you have pharoah ants you should call a professional. They often have more than one colony and have multiple queens. Until the queens are killed they will keep reproducing and possibly making satellite colonies. Most home remedies do not affect the queens, therefore do not work.
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