Local fly information

Fly control in Pennsylvania

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

Flies in Pennsylvania: what to know

Around Pennsylvania

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 Pennsylvania: what the public record shows

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

Three to four, or more, per season

Cluster fly generations per year in Pennsylvania

Each summer generation adds to the population that moves into attics and wall voids in fall.

Penn State Extension

Larvae hatch on soil, enter earthworms, and develop inside them before pupating

Cluster fly larval host

No garbage or drain source exists to clean up, so exclusion is the only real fix.

Penn State Extension

1,400,000 cattle and calves including 455,000 milk cows, 1,400,000 hogs, and 244,500,000 broilers

Pennsylvania livestock inventory driving rural fly pressure

Dairy and hog manure make Pennsylvania one of the heavier house fly and stable fly states in the Northeast.

USDA National Agricultural Statistics Service

Fly species recorded in Pennsylvania

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…
Stable fly (Stomoxys calcitrans) — Biting fly with bayonet-like proboscis; about 12 days egg to adult; peaks early summer.

When flies are busiest in Pennsylvania

Cluster flies enter structures with the onset of autumn after three to four summer generations; filth fly pressure near dairy and hog operations runs late spring through fall.

Penn State Extension: mechanical exclusion is the best method, sealing cracks around windows, doors, siding, utility pipes, and behind chimneys; insecticide treatment of the dead flies invites carpet beetles.

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: Penn State Extension; USDA National Agricultural Statistics Service; 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 Pennsylvania cities

Allentown

Humid Continental · urban setting

Fly control in Pennsylvania

Flies in Pennsylvania: what to know

Around Pennsylvania

What to note

A useful next step

Flies in Pennsylvania: what the public record shows

Fly species recorded in Pennsylvania

When flies are busiest in Pennsylvania

For context, nationally

Explore Pennsylvania cities

Allentown

Altoona

Bethlehem

Chambersburg

Chester

Easton

Erie

Harrisburg

Hazleton

Lancaster

Lebanon

New Castle

Philadelphia

Pittsburgh

Pottstown

Reading

Scranton

State College

Wilkes-Barre

Williamsport

York

Monroeville

Ask about fly control in Pennsylvania