When Is Termite Season in Central Illinois?

When Is Termite Season in Central Illinois?

While termites are active year-round underground, their most visible activity occurs during swarming season. Understanding the termite calendar can help you know when to be most vigilant and why ongoing protection is essential.

Swarming Season: Spring

In Central Illinois, termite swarming season typically occurs between March and May. Swarming is triggered by a combination of warmer temperatures, increased rainfall, and longer days. A warm, sunny day following a spring rain is a classic trigger for a termite swarm. During a swarm, winged reproductive termites emerge from mature colonies to mate and establish new colonies.

What Swarming Looks Like

A termite swarm can involve hundreds or thousands of winged insects emerging from the ground, from a structure, or from a tree over a short period, sometimes just 30 to 40 minutes. Swarmers are attracted to light, so they are often seen near windows and light fixtures. After mating, they shed their wings, which may be found in piles on windowsills.

Year-Round Activity

It is important to understand that swarming season is not the only time termites are active. Subterranean termite workers feed on wood 24 hours a day, 7 days a week, 365 days a year. The colony does not stop working just because swarming season is over. In heated buildings, termite activity may even continue through winter.

When to Get a Termite Inspection

The best time to get a termite inspection is before you see signs of a problem. Annual termite inspections are recommended for all homeowners in Central Illinois. However, if you see swarmers, discover mud tubes, or notice signs of wood damage, schedule an inspection immediately regardless of the time of year.

Year-Round Protection

Because termites are active year-round, the most effective protection is a continuous monitoring and treatment program. Baiting systems and liquid soil treatments provide ongoing defense against termite colonies that may be present on your property.

Terminix offers comprehensive termite inspection, treatment, and monitoring services throughout Central Illinois and Western Indiana. Contact us today for a free termite inspection and protect your home in every season.