They might be small, but they cause a big annoyance. While you can sometimes walk through swarms of them outside (don’t walk with your mouth open!), they can also make their way into your home if you have what they’re looking for. Adult gnats have a short lifespan, adding up to less than a couple of weeks, but they can continuously reproduce during that time. If they’ve made a home in your house, you’ll want to get rid of them before they have a chance to flourish.
While these pesky bugs are mostly just a nuisance, depending on the species of gnat, they can also cause damage by eating at the roots of your houseplants! Here are some useful tips to keep them out of your living spaces (and yard)…
Reduce Moisture in Houseplants
Better Homes and Gardens explains that fungus gnats like to lay their eggs in the soil of houseplants, where they eat the fungi that exist there. (As mentioned they can also chomp on the roots, leaving your houseplants looking sad and wilted).
One way to keep them out of your plants is to keep the moisture in the plant soil lower, without harming the plant. The source says that gnats seek out moist soil to lay their eggs, so try to overwater your plants (while also making sure drainage is adequate), it adds. Let the soil dry out a bit between watering, which will likely kill the eggs and larvae in there, it suggests.