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Cluster Flies: Attic Intruders

Cluster fly

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Cluster flies are a common pest that can invade homes, particularly during the cooler months. Their presence can be both annoying and problematic for homeowners. Understanding what cluster flies are and why they become a problem can help you manage and prevent infestations. Here’s a comprehensive guide to cluster flies.

What Are Cluster Flies?

Cluster flies are large, sluggish flies with a distinctive golden or grayish appearance. Unlike common houseflies, they are known for congregating in large numbers, particularly in and around homes. Although they are often mistaken for houseflies, their unique life cycle and behavior set them apart.

Why Are Cluster Flies a Problem?

Cluster flies are typically found outdoors in summer and early fall, laying their eggs in the soil around your home. As the weather cools, they seek warmth and shelter in your living space, often in large numbers. This mass invasion can be overwhelming and disruptive. 

Cluster flies are not harmful and do not bite or sting, but their presence can be very annoying. They tend to gather in attics, wall voids, and other hidden spaces, making them difficult to manage once inside. When crushed, cluster flies can leave behind unsightly stains and emit a foul odor. This can be particularly problematic in areas where the flies have gathered together in large numbers.

Five Ways To Prevent A Cluster Fly Infestation

  • Seal Entry Points: To prevent cluster flies from entering your home, inspect and seal any gaps, cracks, or openings around windows, doors, and foundations. Pay special attention to areas where utility pipes and wires enter the home.
  • Maintain Your Home’s Exterior: Ensure your home’s exterior is well-maintained. Repair or replace any damaged screens, weather stripping, or vents that could allow flies to enter.
  • Clean and Declutter: Cluster flies are attracted to areas that provide warmth and shelter. Keeping your home clean and clutter-free, especially in attics and basements, can reduce their appeal.
  • Outdoor Maintenance: Trim back overgrown vegetation and remove debris around your home’s foundation. This can help reduce the number of flies that congregate near your home.
  • Use Fly Traps: Installing fly traps around the exterior of your home can help catch and reduce the number of cluster flies before they enter.

Call Insight Pest Solutions

Cluster flies can be a persistent and bothersome pest, particularly during the cooler months when they seek warmth and shelter inside your home. You can help minimize their impact by understanding their behavior and taking proactive steps to prevent infestations. If you’re dealing with a cluster fly problem or want to protect your home from these unwelcome intruders, be sure to contact Insight Pest Control. Our helpful staff and experienced technicians are ready to assist you with any pest problem you have and want to help you keep your home cluster fly-free!

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