Local fruit fly information

Fruit Fly control in Pennsylvania

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

Fruit 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 fruit 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

Fruit Flies in Pennsylvania: what the public record shows

Before you compare quotes, it helps to know which fruit 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.

Discovered in Adams County in 2011 and has since spread through most of the state

Spotted wing drosophila arrival in Pennsylvania

The one fruit fly that genuinely varies by region in Pennsylvania is SWD, which breeds in ripening fruit outdoors and can be carried indoors on home-picked berries and stone fruit.

Penn State Extension

Early-season activity in the Northeast starts May to mid-June, with multiple generations usually observed until October

Outdoor fruit fly season length

Pennsylvania homes see the heaviest fruit-fly pressure in the same late-summer and fall window when outdoor populations are at their peak and produce is being brought indoors.

Penn State Extension

Mushroom phorid fly (Megaselia halterata) populations reach their peak on farms between September and October; adults are 1/64 to 1/8 inch long

Mushroom phorid fly peak near Chester County farms

In Pennsylvania's mushroom-growing region, the tiny flies swarming a kitchen in early fall are often phorids blown in from nearby farms rather than fruit flies breeding in the house.

Penn State Extension

When fruit flies are busiest in Pennsylvania

Penn State Extension reports SWD activity in the Northeast running from May or mid-June through October, and mushroom phorid fly populations peaking on Pennsylvania farms between September and October, so indoor small-fly complaints cluster in late summer and fall.

Penn State Extension advises that mushroom phorid flies cannot reproduce inside a home because there is no actively growing mycelia, and that residents should close windows, doors and other openings and close blinds at night to hide the light, using vacuuming and sticky traps rather than insecticides. For SWD, Penn State Extension recommends apple cider vinegar with a few drops of soap, or a yeast-and-sugar bait, in monitoring traps.

Rules that apply in Pennsylvania

7 Pa. Code Chapter 46 (Pennsylvania Food Code, adopting the FDA Model Food Code)

For context, nationally

8 to 10 days egg to adult — Life cycle length. University of Maryland Extension
As few as 8 days — Fastest life cycle under optimum conditions. Texas A&M AgriLife Extension

Sources: Penn State Extension; University of Maryland Extension; Texas A&M AgriLife Extension. Figures are quoted as the source prints them. How we check our sources

Explore Pennsylvania cities

Allentown

Humid Continental · urban setting

Fruit Fly control in Pennsylvania

Fruit Flies in Pennsylvania: what to know

Around Pennsylvania

What to note

A useful next step

Fruit Flies in Pennsylvania: what the public record shows

When fruit flies are busiest in Pennsylvania

Rules that apply 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 fruit fly control in Pennsylvania