When Do Termites Swarm & When Should I Treat My Caseyville, IL Home for Them?
Termites are among the most destructive pests a homeowner may face, potentially causing hundreds or even thousands of dollars of damage before detection. According to Termite Infestations Probability Zones (TIP Zones), Illinois is located in TIP Zone #2, meaning that the likelihood of an infestation is moderate to heavy and the potential for damage is significant. If you own a home or business in Caseyville, Illinois, then it’s important that you know how to keep these insects at bay or eliminate an established colony.
When Do Termites Arrive?
Contrary to popular belief, termites are well-adapted to Illinois’s chilly winters and are able to survive through even the lowest temperatures. Subterranean termites, which are native to the state and are the most common types of termites that homeowners see, create mud tubes deep within the ground where they live and breed. This allows them to survive the coldest winter months.

The question, then, is not, “When do termites arrive,” but, “When do termites cause problems?” Termites prefer warmer weather, and they generally swarm on a warm day in the spring, often after rainfall. The eastern subterranean termite swarms during the day from March to May, and the dark southeastern subterranean termite is active from March to June. The light southeastern subterranean termite, which is usually most active in the hottest months of the year, swarms from August to October.
When Should I Treat My Home?
Your home can be treated for termites at any time, and treatments last between six and 13 years. While there are plenty of do-it-yourself options, these are generally largely ineffective and rarely kill the queen. At Imel Pest Control, we use the revolutionary award-winning Sentricon System, which is highly effective, causes very minimal disruption to your home, lawn, and landscaping, and is safe for pets and children. No drilling or digging is required, making it a hassle-free way to get rid of termite colonies fast.
Contact Us Today
It’s important to treat for termites as soon as you notice evidence of an infestation, but it can be difficult to recognize the signs. At Imel Pest Control, we provide free termite inspections and consultations, letting you enjoy peace of mind that your home is protected throughout the year. Contact us today to schedule your visit or to learn more about our services.