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Iowa

Termite Activity in Iowa

Termites are active across the state, from Sioux City to Waterloo and from Des Moines to Davenport, Iowa.

What Types of Termites are in Iowa?
Subterranean termites are known to cause damage to homes in Iowa. Drywood termites are not native to the state.

Are Formosan Termites in Iowa?
Formosan termites have not been identified in Iowa. This species typically lives in very warm locations in the southern U.S.

When Do Termites Swarm in Iowa?
Generally, termites swarm on a warm day after a rainfall. Swarms may occur during the winter in heated buildings. The swarming habits of the most common species in Iowa are described below.

  • The eastern subterranean termite swarms during the day from March to May.
  • The dark southeastern subterranean termite usually swarms in the daytime between March and June.

More Information about Termites in Iowa
According to Termite Infestation Probability Zones (TIP Zones), the southern two-thirds of Iowa are located in TIP Zone #2 (moderate to heavy), which means the potential for termite damage is considered significant. The northern one-third of the state is located in TIP Zone #3 (slight to moderate), which means there is some potential for damage by termites. Areas with higher probabilities for activity require more termite control measures to meet International Residential Code building standards for new homes than areas with less frequent activity.

Although drywood termites are not established in Iowa, it is possible for this species to travel in wooden objects, such as furniture and wine crates, and establish colonies in the state. Drywood termites have been found in areas far from their native habitats. A licensed termite inspector can help identify species not native to the state.

In states like Iowa where termites are fairly active and widespread, it is essential to maintain an effective termite prevention and control program. If you own a home in Iowa, talk to your termite control expert about methods to help protect your home from termite infestations and damage.

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