Fungus gnat adults may live from about one to two weeks and complete one life cycle in about 18-30 days. Moth fly adults live for about 14 days and complete their life cycle in about 7-21 days.
Gnats are a suborder of Diptera known as Nematocera. This group has long legs and antennae and look fragile. How long do gnats live? Once they reach the adult stage, gnats generally only live about 7-10 days.
Fungus gnats will not go away on their own. In order to ensure these bugs don't hang around for a long period of time, you'll need to take matters into your own hands and try several different methods to remove them.
Gnats come to find a breeding ground and place to lay their eggs. They seek out moist places, decomposing organic matter and damp soil of houseplants, and can be found around your trash or recycling bin.
The only way to get rid of gnats without killing them is to repel them with scents they don't like: vinegar, vanilla, pine oil, peppermint, lemon, eucalyptus, and lavender. Even dryer sheets could help. Of course, the first line of duty would be to get rid of the infestation's root cause.
Gnats are seasonal pests that thrive during the spring. With proper methods of control, they may eventually go away as the year progresses. Gnats have a short life cycle and will often disappear when the cold months start.
Inside the home, gnats can be attracted to unsealed produce, fresh flowers, houseplants, food spillage and open or overflowing garbage cans. Gnats may also live in sink drains where food residue can collect. Dirty kitchen sink drains can provide food, water, shelter and breeding sites to many fly species.
For hydrogen peroxide, mix one part 3% hydrogen peroxide with four parts water. Carefully pour this solution onto the top of the soil, ensuring it reaches the root zone. The hydrogen peroxide will help kill the gnat larvae and any eggs in the soil without harming your plant.
In general, gnats go through the four life stages of egg, larva, pupa and adult, similar to other flies. The fungus gnats lay their eggs in moist organic debris or soil, which hatch into larvae. The larvae feed on organic matter such as leaf mold, mulch, compost, grass clippings, root hairs and fungi.
Wear clothing like long-sleeved shirts and pants to protect your skin in areas where gnats thrive. Stay inside during dawn and dusk when these biting gnats are most active.
Combine equal parts vinegar and soap and then add a few tablespoons of sugar – once you mix it all together you can place the bowl wherever the gnats have been gathering. They will be attracted to the sugar and vinegar and drown in the mixture. Traps can also be made out of red wine and dish soap, or rotting fruit.
Gnats are active mostly during the day, especially around mid-morning and dusk. Biting usually peaks during a three-week period in late spring or early summer, and is usually more severe following droughts.
Gnats often enter your home from outdoors through open doors and windows or small cracks and gaps. They can also originate from breeding sites like potted plants, trash cans, and clogged drains.
Breath, Sweat & Tears
A gnat is always searching for moisture and salt, which are found in sweat and tears. Unfortunately, the pests are vectors for pink eye. They are also drawn to the smell of bad breath and to the carbon dioxide people expel when exhaling.
Repel them with Scent.
Try Lighting citronella candles using lemon or vanilla sprays. While gnats are a fan of sweet-smelling fruit, they can't seem to stand vanilla, lemon, or even lavender. A little spritz can at least keep them at bay.
While gnats may momentarily land on or fly around your hair, they do not typically take up residence or establish nests in human hair like some other pests. However, gnats can be a nuisance when they fly near your face or hair, especially in outdoor settings.
Gnats are seasonal; they are a springtime pest. Once we get consistent summer weather, they will go away. Their life cycle is short - usually mid-May to late June is when we see gnats.
Additionally, houseplants can harbor gnats, particularly fungus gnats, which lay their eggs in moist soil. The larvae then feed on organic matter in the soil, potentially harming plants and causing an infestation. Overwatering plants only makes this situation worse.
Unfortunately, the answer to this question is a resounding yes. It is very easy for insects, and other creatures, to find their way into your HVAC system and then your home.
“These pests are attracted to moisture, so you may see swarms in areas with damp soils, standing water, or even houseplants that have been overwatered,” Ludwiczak adds. “The breeding habits of gnats are most active during warmer months, which is why they seem to be especially prevalent during summer.”
The adult has about a 10 day lifespan but during that period may lay in excess of 250-300 eggs. The life cycle begins with the egg hatching in five to six days into a larva. Larvae feed for 10 to 14 days and then change into pupae in the soil.
As with most pest control and management, it's best to rely on a trained Orkin Pro to help get rid of a gnat infestation.