As fall turns cooler in Hermitage, PA, homeowners may notice insects suddenly appearing inside their homes. Ladybugs, stink bugs, wasps, and other insects aren’t just wandering—they’re following a natural behavior called “overwintering.” Understanding this phenomenon can help you prevent indoor infestations and maintain a comfortable, pest-free home.

What Is Overwintering?

Overwintering is a survival strategy that insects use to survive the cold winter months. Instead of dying off, many species seek shelter in protected areas where temperatures are more stable. Homes often provide the perfect environment: warm, dry, and safe from predators.

Common Overwintering Pests

1. Ladybugs

Ladybugs are among the most recognizable overwintering pests. While they’re beneficial outdoors, large groups that enter homes can become a nuisance, often clustering near windows, doors, and attics.

2. Stink Bugs

Stink bugs are notorious for invading homes in the fall. They release a strong odor when disturbed, which can be unpleasant and linger on surfaces. Like ladybugs, they cluster in sunny, warm areas inside your home.

3. Wasps and Other Insects

Some wasp species will enter sheltered spaces to survive winter, while spiders, beetles, and boxelder bugs also seek refuge indoors. While most don’t bite or sting in the fall, their presence can be bothersome and indicate potential entry points that need attention.

How to Keep Overwintering Insects Out

Preventing overwintering pests from entering your home requires a combination of sealing entry points and monitoring your home’s exterior:

• Seal Cracks and Gaps: Inspect windows, doors, siding, and foundation for openings. Even small gaps can be entry points.
  
• Install Screens and Weatherstripping: Ensure doors, windows, vents, and chimneys are properly sealed.
  
• Reduce Attractants: Remove outdoor lights that draw insects near entryways and keep vegetation trimmed away from your home.
  
• Regular Inspections: Check for clusters of insects near windows, attics, or crawl spaces and address them promptly.
  

By learning about overwintering and why insects like ladybugs, stink bugs, and wasps sneak indoors, Hermitage homeowners can take proactive steps to protect their homes. Proper prevention during fall reduces the risk of infestations during winter, keeping your living space safe and comfortable.