Common Fall Pests in Central Illinois

Common Fall Pests in Central Illinois

As summer fades and temperatures begin to drop, many pests start looking for warm places to spend the winter. For homeowners in Central Illinois and Western Indiana, fall is one of the busiest times for pest activity around the home. Understanding which pests to watch for can help you take preventive action before they move in.

Mice and Rodents

Fall is the peak season for rodent invasions. As outdoor food sources diminish and temperatures drop, mice and rats seek shelter inside homes, garages, and sheds. They can squeeze through openings as small as a dime and quickly establish nesting sites in wall voids, attics, and basements. Sealing entry points and eliminating food sources are critical steps for fall rodent prevention.

Stink Bugs

Brown marmorated stink bugs are one of the most common fall invaders in our area. These shield-shaped insects congregate on the sunny sides of buildings in the fall, looking for entry points to access warm interior spaces. Once inside, they hibernate through the winter and become active again in spring. Sealing cracks around windows, doors, and utility penetrations is the best way to keep them out.

Asian Lady Beetles

Often mistaken for ladybugs, Asian lady beetles swarm buildings in the fall looking for overwintering sites. They can enter through the smallest gaps and accumulate in large numbers in attics, wall voids, and around windows. Like stink bugs, they release an unpleasant odor and can leave stains when disturbed.

Spiders

Spider activity often increases in the fall as many species reach maturity and begin mating. You may notice more spiders and webs around your home during this time. While most spiders are harmless, brown recluse spiders are a concern in Central Illinois and can sometimes be found in undisturbed areas of the home.

Box Elder Bugs

These black and red insects gather on the sunny sides of buildings in large numbers during the fall. While they do not cause damage, their presence can be alarming. Like stink bugs and lady beetles, they are looking for a warm place to overwinter.

Preventing Fall Pest Invasions

The best time to prepare for fall pests is before they arrive. Inspect your home's exterior for gaps and cracks, install door sweeps, repair window screens, and address moisture issues that attract pests. A professional fall pest prevention treatment can create a barrier around your home that keeps invaders out.

Terminix offers seasonal pest control programs designed to address fall pest pressures in Central Illinois and Western Indiana. Contact us today for a free inspection and get ahead of fall pests before they get inside.