Around New Hampshire
Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.
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Local fruit fly information
Fruit Fly control in New Hampshire
Learn what to look for around your property, explore your city, and ask about an inspection or a quote.
Fruit Flies in New Hampshire: what to know
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 New Hampshire: what the public record shows
Before you compare quotes, it helps to know which fruit flies actually live in New Hampshire, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.
"We first discovered it in New Hampshire on September 6, 2011."
First New Hampshire detection
SWD has been established in New Hampshire for well over a decade, so late-season berries in the state are assumed infested unless protected.
University of New Hampshire Extension"In 2012, SWD caused over $1.5 million in crop losses in NH."
Documented New Hampshire crop loss
That is a measured statewide dollar figure, which is why UNH pushes trapping and prompt fruit removal rather than tolerance.
University of New Hampshire ExtensionSWD "looks similar to our other 39 species of drosophilids" in New Hampshire; adults are not detected in NH traps until early July, and timing varies year to year.
Look-alike species in the state
Most small flies a New Hampshire homeowner sees in a kitchen are one of those other drosophilids breeding indoors, not the crop pest.
University of New Hampshire ExtensionWhen fruit flies are busiest in New Hampshire
Outdoor SWD is generally not caught in New Hampshire traps until early July, and pressure builds through the late-summer bramble and blueberry harvest; indoor vinegar fly problems follow that fruit home.
UNH Extension recommends monitoring with traps, treating when flies appear during fruit ripening, and cultural controls including destroying nearby wild host plants, pruning to open the canopy, choosing early-ripening varieties, and removing damaged fruit. Extension also emphasizes that SWD is one of 40 drosophilid species in the state, so identification matters before treating.
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: University of New Hampshire Extension; University of Maryland Extension; Texas A&M AgriLife Extension. Figures are quoted as the source prints them. How we check our sources
Explore New Hampshire cities
Bedford
Humid Continental · suburban setting
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Concord
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Derry
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Dover
Humid Continental · suburban setting
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Hudson
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Londonderry
Humid Continental · suburban setting
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Manchester
Humid Continental · urban setting
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Merrimack
Humid Continental · suburban setting
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Nashua
Humid Continental · urban setting
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Rochester
Humid Continental · suburban setting
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Salem
Humid Continental · suburban setting
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Portsmouth
Humid Continental · urban setting
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