Local fly information

Fly control in Connecticut

Learn what to look for around your property, explore your city, and ask about an inspection or a quote.

Flies in Connecticut: what to know

Around Connecticut

Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.

What to note

Where you see flies, how long it has been going on, and anything you’ve already tried are the most useful details to mention.

A useful next step

Ask about an inspection, what treatment would involve, and whether follow-up visits are included. You don’t need to identify the problem yourself before getting in touch.

Local research

Flies in Connecticut: what the public record shows

Before you compare quotes, it helps to know which flies actually live in Connecticut, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.

Slightly less than 1/2 inch long, dark gray with a checkered back and silvery abdomen

Cluster fly identification in Connecticut

Larger and much slower than a house fly, which is the field mark homeowners use.

UConn Home & Garden Education Center

Two or more each summer; larvae parasitize earthworms for 11 to 14 days

Cluster fly generations per year

Multiple summer generations build the population that moves into attics in fall.

UConn Home & Garden Education Center

Mid-50s°F: they enter buildings in fall as temperatures drop through the mid 50s and become active again when temperatures rise back to that range

Temperature that triggers cluster fly movement

Explains why Connecticut attic flies reappear on the first mild day in February.

UConn Home & Garden Education Center

Fly species recorded in Connecticut

House fly (Musca domestica) — Non-biting; breeds in manure, garbage, lawn clippings, decaying produce. 45 days at 60°F to 7 days at 95°F. Carries bacteria and viruses causing diarrhea, cholera, food poisonin…

When flies are busiest in Connecticut

Cluster flies enter buildings in fall as temperatures fall through the mid 50s and re-emerge indoors on warm days through winter and early spring.

UConn: lawn insecticides do not control cluster flies because adults do not rest on treated turf long enough; caulk and screen window sills and attic openings instead, and remove dead flies so carpet beetles do not follow.

For context, nationally

About 45 days at 60°F; 7 days at 95°F — House fly life cycle vs temperature. Texas A&M AgriLife Extension
75–150 per cluster; 350 to 900 in a lifetime — House fly eggs per female. University of New Hampshire Extension

Sources: UConn Home & Garden Education Center; Texas A&M AgriLife Extension; University of New Hampshire Extension; Flies (Home and Landscape). Figures are quoted as the source prints them. How we check our sources

Explore Connecticut cities

Bristol

Humid Continental · suburban setting

Fly control in Connecticut

Flies in Connecticut: what to know

Around Connecticut

What to note

A useful next step

Flies in Connecticut: what the public record shows

Fly species recorded in Connecticut

When flies are busiest in Connecticut

For context, nationally

Explore Connecticut cities

Bristol

Danbury

Greenwich

Hartford

Meriden

Middletown

Milford

New Britain

New Haven

Norwalk

Norwich

Shelton

Stamford

Waterbury

West Haven

Westport

Glastonbury

Ask about fly control in Connecticut