Top
Follow Us
Pest ID Learn about the pests that impact homes and businesses across Central Massachusetts.

Worcester Pest Identification: Pest ID: Cluster Flies

Protect Your Home from Cluster Fly Infestations Serving Central Massachusetts

« back to Pest ID

The adult cluster fly will enter homes to overwinter. In suburbs, older country homes become more vulnerable to the invasion. As the winter warms into spring, these large, sluggish flies appear mostly around windows as they look for a lighted escape route. They enter your living quarters through window rope pulley holes, overhead lighting, vents, and access points from your attic. Large gatherings (clusters) can be seen on the sunny side of your house during the warm days of spring. These flies are of no immediate threat to humans.

The eggs are laid in the soil and hatch in three days. The newly emerged larvae (maggot) will penetrate earthworms and feed for 13–22 days and then pupate. The pupae stage is 11–14 days before adulthood. Control of these insects begins with preventing entry by interior caulking and physical barriers such as insect screening. Insect light traps can help control and catch the adults. Rarely is professional spraying necessary, as these insects do not live very long indoors. This is a pest problem you can anticipate each year; however, with the proper procedures mentioned above, alleviation is possible.

Cluster flies are considered an occasional invader. The best time to treat for them is early fall (mid-August to early September) with our Fall Invader Program. Once they get in, they are in. Please call Ford's Hometown Services for a quote at (774) 418-4908.

Central Mass Trusts Us. See Why.

  • J
    Paul was very friendly
    "Paul was very friendly and took some time to explain what he will be doing on his 1st visit of the season."
    James Burke
  • D
    Very Passionate and Knowledgeable
    "He explained everything that he was doing and effectively answered our questions."
    David Reno
  • J
    Professional and On Time
    "He was professional and on time."
    James Ramsey
  • D
    I Love Ford's Hometown Services
    "They provided me and my family with another visit on the rodent protection program that I have each year."
    Donna Pina
  • A
    Not a peep of a mouse all winter
    "I'm pleased to say it is 2/28/26, and not a peep of a mouse has been heard all winter!"
    April L
  • K
    Professional and Explained Everything
    "Zack was professional and explained what he was doing and what I could expect."
    K M
  • K
    Professional and Explained Everything
    "Zack was professional and explained what he was doing and what I could expect."
    K M
  • J
    Gold Standard!
    "I've used Fords Hometown Services a few times for carpenter Ants and I have always been impressed with the results. They are the Gold standard in pest control!"
    Josh R.
  • M
    Ford Hometown Services Helped Me Out
    "Ford Hometown Services helped me out when I really needed it."
    Mary Parker

Talk with Ford's Hometown Services Today

Call (774) 418-4908 or send the form and we will help you sort out pests, wildlife, or lawn concerns with a plan that fits your property. At Ford's Hometown Services, we treat your home or business with the care we use for our own.

  • By submitting, you agree to be contacted about your request & other information using automated technology. Message frequency varies. Msg & data rates may apply. Text STOP to cancel. Acceptable Use Policy

Local Care Backed by 85+ Years of Doing the Right Thing

  • Voted the Area's Top Choice for Pest Control

    We were voted the #1 pest control company in Central Massachusetts in 2024, something we achieved by putting people first and providing lasting results.

  • 85+ Years Of Know-How

    With us, you get practical, tailor-made solutions that are backed by over eight decades of industry experience. 

  • Cleaner Visits, Every Time

    We follow a four-step cleanliness process to keep homes and businesses neat and tidy, all while delivering effective pest control and lawn care. 

  • Comprehensive Care, One Team

    We're your one-stop shop for complete pest and wildlife control and lawn care, all under one roof.