Keeping bugs away comes down to two strategies: making yourself and your space less attractive to insects, and putting barriers between you and them. The most effective approach combines personal repellents, physical barriers like screens, and environmental changes that eliminate what draws bugs in the first place.
Choosing a Skin-Applied Repellent
The EPA registers several active ingredients for skin-applied insect repellents, and they vary widely in how long they last. DEET remains the most widely available, appearing in over 500 registered products. The CDC recommends concentrations of 20% or higher for meaningful protection, but going above 50% doesn’t add any extra benefit. A product with 25% DEET works nearly as well as one with 99%.
Picaridin is available in about 40 products and offers similar protection to DEET without the greasy feel or tendency to damage plastics. IR3535, found in roughly 45 products, is another synthetic option that’s been used in Europe for decades. All three of these can be used on children without age restriction, according to the CDC.
For plant-based options, oil of lemon eucalyptus (OLE) is the standout. It contains a compound called PMD that the EPA has registered as an effective repellent, and it performs closer to lower-concentration DEET products than other natural ingredients. Catnip oil and citronella are also EPA-registered, though citronella tends to wear off faster. Products with less than 10% of any active ingredient typically protect for only one to two hours, so check the label concentration before buying.
Treating Clothing With Permethrin
Permethrin is a fabric treatment that repels and kills mosquitoes and ticks on contact. You can buy pre-treated clothing or apply it yourself using EPA-registered spray products. It’s meant only for fabrics, never for skin. When applying it yourself, spray outdoors in a well-ventilated area protected from wind, then hang the clothing to dry completely before wearing it. Wash treated items separately from the rest of your laundry.
Pairing permethrin-treated clothing with a skin-applied repellent on exposed areas gives you layered protection, which is especially useful in tick-heavy areas or during peak mosquito season.
Creating a Bug-Free Zone Outdoors
Spatial repellents work differently from skin-applied products. Instead of coating your body, they release vapor into the air to create a protective zone around you. Devices using metofluthrin, a synthetic compound, have shown 91 to 97% reductions in mosquito landings in controlled evaluations. Heat-activated versions create roughly a 15-foot protection zone with no skin contact and no noticeable scent.
Wind matters. A moderate breeze from a fan can disrupt mosquito flight paths (they’re weak fliers), but it can also disperse repellent vapor too quickly. Position spatial repellent devices away from strong airflow sources so the protective zone stays intact. On a breezy patio, placing a device on your downwind side helps keep the vapor cloud around you rather than behind you.
Eliminating Standing Water
Mosquitoes can complete their entire life cycle, from egg to flying adult, in as little as four days under warm conditions. The typical timeline is about two weeks, but it can stretch to a month in cooler weather. That means any container holding water for more than a few days is a potential mosquito nursery. Mosquito eggs can also survive dry conditions for months, hatching the next time water fills the container.
Walk your property weekly and dump water from plant saucers, buckets, tarps, grill covers, clogged gutters, birdbaths, and anything else that collects rainwater. Birdbaths should be refreshed every few days. Pet water bowls left outside overnight count too. Even a bottle cap holding a small pool of water can support mosquito larvae.
Sealing Your Home’s Entry Points
Standard fiberglass mesh screens block most common insects while allowing good airflow and visibility. If you’re dealing with tiny biting midges (no-see-ums), a tighter weave screen is available, though it slightly reduces airflow. The screen itself only works if it fits properly. Common failure points include loose or missing spline (the rubber cord that holds the mesh in the frame), dirty window tracks that push the screen out of alignment, and gaps around the frame edges.
For a tighter seal, you have several options:
- Foam weatherstrip tape fills gaps around the screen frame without blocking airflow. Choose a low-profile thickness so the screen still seats properly.
- Screen frame clips hold a loose screen snug against the window frame.
- Adhesive brush seals create a flexible barrier around edges while still allowing air movement.
- Clear silicone caulk works for permanent frames with small corner gaps.
Don’t forget doors. Gaps under exterior doors are highways for cockroaches, ants, and spiders. A door sweep or threshold seal closes that gap. Check where utility pipes and cables enter your home as well, and seal those penetrations with caulk or expanding foam.
Controlling Indoor Humidity
Many household pests depend on moisture to survive. Silverfish need relative humidity above 75% and will die within days if it drops to 50%. German cockroaches reproduce best at 70 to 80% humidity. Booklice and springtails have similarly narrow tolerance for dry conditions.
Keeping your indoor humidity below 50 to 60% creates an environment most moisture-dependent pests can’t thrive in. A basic hygrometer (available for a few dollars) tells you where you stand. If humidity runs high, use exhaust fans in bathrooms and kitchens, fix any leaking pipes, and run a dehumidifier in basements or crawl spaces. Improving ventilation in closets and storage areas also helps, since these enclosed spaces trap moisture and attract silverfish and other fabric pests.
Reducing What Attracts Bugs Indoors
Food is the primary draw. Store pantry staples like flour, rice, sugar, and cereal in airtight containers rather than leaving them in original packaging. Wipe counters and sweep floors after cooking, especially around the stove. Take out kitchen trash before it sits overnight, and rinse recycling containers before tossing them in the bin. Fruit flies can breed on a single overripe banana, so keep ripening fruit in the refrigerator during warmer months.
Pet food left in bowls overnight attracts ants, cockroaches, and even rodents. Feed pets on a schedule and pick up uneaten food. Crumbs under and behind appliances are easy to forget but worth vacuuming monthly.
Managing Your Yard
Mosquitoes and ticks rest in tall grass, leaf litter, and dense shrubs during the day. Keeping your lawn mowed and trimming vegetation around patios and walkways reduces the resting habitat closest to where you spend time. A three-foot gravel or wood chip border between your lawn and wooded areas creates a dry zone ticks are less likely to cross.
Outdoor lighting attracts many flying insects. Switching porch lights to warm-toned yellow or amber LEDs draws significantly fewer bugs than standard cool-white bulbs. Motion-activated lights are even better, since they’re only on when you actually need them. Move lights away from doorways when possible, or use fixtures that direct light downward rather than outward.