Where Do Gnats Come From? Why You Might See More This Winter

While gnats are usually associated with warmer months, you might be puzzled (and frustrated) when these pests make themselves comfortable in your home during the winter. But don’t worry—you’re not alone, and there’s an explanation. 

Gnats thrive in moist and organic-rich environments, which is why they often show up unwelcome around specific spots in your home, regardless of the weather outside. 

If you’ve been asking, “Where do gnats come from?” or “Why now?” you’re in the right place. Let’s unpack this mystery for you this winter, and make sure you’re armed     with tips on the best gnat repellents out there. 

Where Do Gnats Come From?

Gnats, often confused with fruit flies, are small, pesky flying insects that can multiply quickly. They generally originate from areas with standing water, damp soil, or organic rot. 

Common sources include overwatered plants, clogged drains, uncovered garbage, and even inside trash disposal units. If it’s moist and filled with organic material, that’s a gnat’s party central. 

During the summer, gnats often enter homes through open doors or windows. 

However, in the winter, things get interesting. Anytime the temperature drops, gnats seek a warm shelter. Guess what? Your cozy home, filled with indoor plants and tempting kitchen goodies, makes the perfect refuge. 

Why Gnats Love Winter Adventures Indoors 

Contrary to what you might think, winter doesn’t wipe out gnats entirely. Many gnat species lay eggs that survive through colder months, often nestled in damp plant soil or hidden organic debris around your home.

Similarly, central heating in your house creates a balmy paradise that gives them even more reasons to stay. 

Here’s why they persist inside during chilly months:

Attraction to Houseplants

Overwatered plants are gnat heaven. Damp soil is ideal for their eggs to hatch, and before you know it, you’ve got a whole airborne battalion flitting around your prized fiddle-leaf fig. 

Drain Issues

That sink you’ve been avoiding cleaning? That’s another friendly home for gnats. They’re drawn to organic residue in kitchen and bathroom drains. If you spot them there, it’s time for a little drain TLC. 

Trash Trouble 

Your trash bin might also be part of the problem. Gnats love fermenting organic matter, and food scraps in trash cans or recycling bins provide the perfect snack. 

Leftover Fruit 

Those bananas sitting a bit too long on the counter? Rotten fruit is one of the primary invitations for gnats to flock to your kitchen. 

What is the Best Gnat Repellent?

Once gnats have made themselves at home, it can feel discouraging trying to evict them. 

But don’t worry—they’re certainly no match for a focused cleanup effort and the right tools. Here’s how you can send them packing: 

1. Control Plant Soil Moisture 

Overwatering houseplants is a major culprit. Gnats, like mosquitoes and other common pests, thrive in conditions where there’s excess moisture.

Allow the top layer of soil to dry out completely between waterings, as gnat larvae can’t survive in dry dirt. 

Bonus tip? Sprinkle a little sand or perlite on the soil’s surface to discourage egg-laying. 

2. Clean Your Drains 

For gnats gathering around your sink, your drains may need a deep clean. Pour boiling water down the drain, followed by a mixture of vinegar and baking soda. This fizzy duo blasts away the organic buildup that gnats love to munch on. 

3. Trap the Invaders 

You can DIY your approach to gnats with some common household items. For example, try mixing apple cider vinegar and dish soap in a shallow dish—a classic solution. 

The gnats are attracted to the vinegar’s scent, but the dish soap traps them, effectively breaking up their winter staycation. 

4. Rethink Storage 

Replace fruit bowl displays on countertops with refrigerated storage options. Keep trash bins closed securely and take out recycling regularly to cut down on tempting food sources. 

5. Invest in Gnat Repellent Products 

Sometimes, you need to go pro. Choose products like gnat traps or sprays designed specifically for small flying insects. These tools can provide gradual relief as you tackle the root problem. 

6. Bring in Backup (Professional Pest Control) 

If all else fails, or your gnat problem is particularly out of control, get professional help. The source of the infestation isn’t always easy to spot—experts can check areas you might not even consider, such as attics or wall cavities, for any hidden breeding grounds. 

Don’t Share Your Home with Gnats 

Gnats are small but mighty annoyances. They thrive especially well during the colder months because homes often unintentionally provide everything they need to survive—moisture, warmth, and organic materials. 

Winter may not seem like the time for pest issues, but gnats march to the beat of their own tiny wings. If you’re seeing an uptick this season, now is the time to take action. 

By controlling their favorite indoor hotspots—drains, plants, and food—and using effective gnat repellents, you’ll be relaxing in peace again.

Still battling flying invaders? Call Summit Pest Solutions in Edmond, OK. Our pest control experts will help you take control of your home and show gnats the door for good.