Why Do Flying Ants Suddenly Appear? Causes and Solutions for Homeowners

Have you ever tried basking in the sun and suddenly it feels like the air is buzzing with winged creatures? You look up and see winged ants, and start asking, “Why do flying ants suddenly appear?” There’s a fascinating reason why they swarm and even enter your home, especially after the rain.

Why Some Ants Fly?

There are different types of ants, and they’re all related to one another. Those with wings are the queens and the males. They fly to mate and start new colonies, which happen during specific times of the year. After mating, flying male ants die, while newly mated queens lose their wings and establish their broods single-handedly. 

Why Are Flying Ants Swarming?

The “swarming” can be attributed to the nuptial flight. They swarm to increase their chances of mating successfully. It’s when many queen and male flying ants from different colonies fly together, creating a larger gene pool and reducing the risk of inbreeding. Sometimes, worker ants even transport young queens to unrelated colonies to promote genetic diversity. If you suddenly notice a swarm of flying ants in your home, they’re looking for areas to nest and establish new colonies.

What Attracts Flying Ants at Home?

Wondering why flying ants suddenly appear at your house? Here are some probable reasons why:

• Light sources: Flying ants are attracted to light sources for some reason. You may notice them flying around artificial lights in your home, which can be bothersome. 
• Temperature and humidity: Environmental influences like temperature and humidity prompt flying ants to enter your home. The high humidity during summer triggers nuptial flights, as it provides favorable conditions for successful mating. 
• Food sources: Ants — no matter what type — are omnivorous creatures that feed on various sources, including nectar, small insects and human food. Flying ants can enter your home when there’s an accessible food source.

Why Do Flying Ants Suddenly Appear After Rain?

Winged ants suddenly appear after rain because they’re having a nuptial flight. The increased moisture can make it easy for newly mated queens to dig their nests. Ant colonies use environmental cues to synchronize the release of flying queens and males to increase the chances of successful reproduction. The large numbers can also overwhelm predators, improving the survival rate of mating pairs.

Sometimes, moisture-loving species may go inside your house after a rain, especially around a damp foundation, spots with decaying wood and leaky pipes.

Signs of Flying Ant Infestations

If you have a sudden increase in flying ants at home, a mature ant colony is nearby. Pay attention to walls, window frames, especially if there’s rotting wood or water damage. Here are some telltale signs of a flying ant infestation at home.

1. Discarded Wings

Flying queen ants chew off their wings after mating, signaling their search for a new nest. It takes anywhere from a few hours to a week for them to lay eggs. You may find wings on your entry points, in spiderwebs or near windowsills. If you see a pile of discarded wings, it can be a sign that newly mated queens are finding nests at your home.

2. Sight of Other Winged Insects

Another sign is when you see other winged insects indoors. Keep an eye out for insects that swarm near light sources, on walls or ceilings.

3. Trails of Worker Ants

Tails of worker ants are often found on walls and ceilings. They come back and forth to transport food and eggs to other established colonies nearby. They leave behind pheromone lines to create visible pathways for other ants to follow. Whether there’s a trail on your room walls or in the kitchen, it’s time to suspect an ant invasion.

4. Sight of Excavated Mounds

If there are excavated soil mounds near your home, it can be a sign that newly mated queens are busy establishing their nests, laying eggs and building colonies. Mounds are built by worker ants by removing below-ground soil to create tunnels and nest chambers for their queen. 

How to Prevent Flying Ant Infestations

Flying ants suddenly appearing in your house are generally harmless, but they can be bothersome. Here’s what you can do to help reduce ant infestations.

1 Eliminate Rotting Wood

Decaying wood makes an excellent nesting area for ants, but they can weaken wood integrity. Get rid of or replace damp wood and any leaks in your home. You can also avoid placing things at home that may attract moisture, such as plants, soil and mulch.

2. Seal Cracks

Ensure to close open spaces where ants can fly indoors. Do this before the rainy season to prevent them from swarming inside. Inspect for cracks and repair gaps where they usually enter. Ensure you seal entry points on your property’s exterior with caulk to prevent insect infestation.

3. Use Ant Baits

If there are several trails of worker ants indoors, consider using a bait. The one from Terro is easy to use — simply open, place the item near an ant activity and wait a few hours. You’ll find dead ants in no time.

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4. Maintain a Clean Home

One of the best ways to prevent an ant infestation is to maintain a clean home. You can do this by removing any food scraps or open food sources at home. Inspect for open food containers, easily accessible garbage bins and foodstuffs on tables. If you have a pet, sweep spilled pet foods. Cleaning your kitchen and dining areas regularly will help deter ants from entering your home.

5. Use a Vacuum

If you don’t want to use a pesticide, suck up any flying ants and trails of worker ants if the infestation is getting out of control. 

6. Set a Borax Trap

If you have a particularly destructive ant nest in your garden, consider setting up a borax trap. This is an effective, nontoxic way of eliminating ants. All you need is a box of borax, honey or sugar and a cardboard. Mix a ¼ cup of honey with two tablespoons of borax and stir until it thickens. Place your mixture in a cardboard and set it up where there’s increased ant activity.

7. Call a Professional

If your flying ants situation is getting out of hand, consider hiring a professional ant exterminator. They use powerful insecticides to eliminate ants and prevent them from coming back.

Handle Flying Ants With Confidence

The next time you see an army of winged ants, remember it’s mating season. They probably care more about their affairs than wreaking havoc indoors, but if they somehow get destructive, you’ll know what to do!