Getting rid of midges requires a combination of eliminating their breeding sites, keeping them out of your home, and protecting your skin when you’re outdoors. The specific approach depends on whether you’re dealing with biting midges (the tiny blood-suckers also called no-see-ums, punkies, or sand flies) or the non-biting swarms that cluster around lights and damp areas. Both types breed in moist environments, so reducing standing water and organic debris is the foundation of any control plan.
Know Which Midges You’re Dealing With
Biting midges are incredibly small, often just 1 to 4 millimeters long, which is why they’re called “no-see-ums.” Females feed on blood and leave intensely itchy welts that are disproportionate to the size of the insect. Males don’t bite at all and feed only on plant juices. Non-biting midges look similar to mosquitoes and tend to swarm near porch lights, windows, and bodies of water. They’re a nuisance but harmless.
Both types breed in wet environments. Biting midges lay their eggs on mud, in salt marshes, intertidal sand, and wet soil around seepage areas. Decaying seaweed tossed onto beaches after storms creates ideal breeding habitat along the coast. Their larvae feed on decaying organic matter and can take anywhere from six months to a full year to develop before pupating. Adults live about a month, during which females take several blood meals and lay multiple batches of eggs. Non-biting midges follow a similar pattern, breeding in stagnant water, clogged gutters, and poorly drained soil.
Eliminate Breeding Sites Around Your Property
Since midges reproduce in moist areas with decaying organic material, the most effective long-term strategy is making your yard less hospitable to them. Empty any containers that collect rainwater: birdbaths, plant saucers, old tires, clogged gutters, and wheelbarrows. Change birdbath water at least twice a week. Fix leaky outdoor faucets and improve drainage in low-lying areas where water pools after rain.
Trim back vegetation near seating areas. Dense, shaded plantings hold moisture and create sheltered pockets where midges rest during the day. Removing leaf litter, compost piles, and decaying plant material from the immediate area around your home reduces the organic matter larvae feed on. If you live near a marsh, creek, or coastline, you won’t be able to eliminate all breeding habitat, but reducing it on your own property still makes a noticeable difference.
Keep Midges Out of Your Home
Standard window screens are not fine enough to stop biting midges. Their tiny bodies slip right through conventional mesh. You need specialized “no-see-um” screening with a much tighter weave, typically 20×20 mesh or finer, with openings as small as 0.0013 inches. These screens are available in fiberglass, aluminum, and pet-resistant options. The trade-off is reduced airflow and slightly less visibility compared to standard screens, but they’re the only reliable barrier for windows and porches in midge-heavy areas.
If midges are breeding inside your home, the culprit is almost always a drain. Sink drains, floor drains, shower drains, and even toilets can accumulate a layer of organic gunk where larvae thrive. Cleaning an infested drain requires consistent effort for at least three weeks to break the life cycle. Use foaming drain cleaners that dissolve the gelatinous buildup clinging to pipe walls. For stubborn infestations, high-pressure drain cleaning can clear organic material through the entire length of the pipe.
If an infestation persists despite thorough cleaning of every drain in your home, it may point to a broken pipe or hidden leak under a slab or in a crawlspace. That kind of moisture source can sustain a breeding population indefinitely until the leak is repaired.
Use Fans to Create a Midge-Free Zone
One of the simplest and most effective outdoor strategies is moving air. Midges are weak fliers that struggle in wind speeds above just 1 to 2 miles per hour. A standard oscillating fan produces airflow of 5 to 10 mph, more than enough to prevent midges from landing on you. Fans also disperse the carbon dioxide plume your body produces, which is one of the main signals biting midges use to find their targets.
The limitation is range. You need to be sitting directly in the fan’s airflow for it to work, so this strategy is best for defined areas like a patio dining table, a porch, or a deck seating area. Position fans low, pointing across the space where people sit, since midges tend to approach close to ground level.
Choose the Right Repellent
For personal protection, DEET remains the most widely tested repellent against biting midges. The CDC recommends products with at least 20% DEET for meaningful protection. Concentrations above 50% don’t offer any additional benefit. Products with less than 10% of any active ingredient typically provide only one to two hours of protection, which may not be enough for extended time outdoors.
Picaridin is another effective option that feels less greasy on the skin and won’t damage plastics or synthetic fabrics the way DEET can. Oil of lemon eucalyptus is the strongest plant-based alternative registered with the EPA, though it should not be used on children under three years old. For children generally, products should contain no more than 30% DEET.
Wearing long sleeves and light-colored clothing also helps. Midges are most active at dawn and dusk, so timing outdoor activities for the middle of the day avoids peak biting hours.
Traps and Other Tools
UV light traps and sticky fly paper can capture adult midges, but they won’t eliminate an infestation on their own. They’re useful for monitoring how severe a problem is and for reducing the number of adults flying around indoors, but they don’t address larvae or breeding sites. Think of traps as a supplement to the strategies above, not a replacement.
Outdoor midge traps that use CO2 or light attractants work on the same principle at a larger scale. They can reduce the adult population in a localized area over time, but in regions with extensive wetland or coastal breeding habitat, new midges will continually move in from surrounding areas.
Treating Midge Bites
Biting midge welts are notoriously itchy, often more so than mosquito bites relative to the insect’s size. The single most important thing is to avoid scratching. Aggressive scratching can break the skin and lead to bacterial infection, turning a minor annoyance into something that needs medical attention.
For relief, apply a cold compress or rub an ice cube over the bite for about 30 seconds. Over-the-counter hydrocortisone cream or calamine lotion applied three times a day can reduce itching until the bite heals. A paste of baking soda and water works as a simple alternative. Firm pressure on the bite for 10 seconds can also provide temporary relief.
If you have a stronger reaction with widespread swelling or itching that disrupts sleep, a non-drowsy oral antihistamine like cetirizine or loratadine can help manage symptoms from the inside out. Most midge bites resolve within a few days, though some people develop delayed reactions that take a week or more to fully settle down.