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Black Garden Ant | All You Need To Know

The black garden ant (Lasius niger), commonly called the common black ant, is a formicine ant that may be discovered across Europe, as well as portions of North America, South America, Asia, and Australasia. Black garden ant colonies can grow to 40,000 individuals in extreme situations, although 4,000–7,000 is the usual size. The black garden ant queen has the greatest documented lifetime of any highly social insect at 29 years. In the early phases of development, Black garden ant queens might have 2 to 3 additional queens in the nest. They’ll put along with each other before the first workers arrive, at which point they’ll most likely battle until only one queen survives.

Multiple queens can exist in a single colony under specific conditions, such as when they are founded close to one another and their tunnels ultimately join. Workers can survive for at least four years in a laboratory setting.

black garden ant


Black Garden, Ants prefer to build their nests in dry soil and humus. Their nests can be found in beautiful flowers, lawns, and beneath concrete blocks, but they are also abundant in dry grasslands and heaths. They explore extensively for food from their nests, following scent-marked tracks through soil and ground plants, as well as most notably across concrete areas and into buildings, where sweets and crumbs entice them. An ant colony will go dormant over the winter.

The black garden ant will only begin to feed once the weather begins to warm. Garden ants will eat anything sweet and sugary they can find in their kitchens, from nectar, soft fruits, and tiny insects to aphid dew and anything else sweet and sugary they can find. Black garden ants prefer to dwell in rotting wood, although they will also make nests in gaps in brickwork or cement. Outside, they build their nests in decaying logs, meadows, and other open spaces, as well as beneath large rocks. Their nests are also found in tiny craters made of very fine dirt. The insects construct their nests in holes and cavities, such as wall voids, inside.


From March through October, worker ants can be spotted browsing on the ground and in homes. From July through September, the winged individuals fly on specific afternoons, which is prompted by warm, humid seasonal changes and typically happens simultaneously across large regions of the nation. During the early summer season, when the queen produces more eggs and the colony expands, worker ants will travel further away for new feed ingredients. This frequently leads to them entering homes. They’ll also use these forays to investigate if new locations are appropriate for new nests the following spring. Such investigations might be rather lengthy.

  • Size of black garden ant: Little black ants are just a little ant species. Individuals can be as little as 1.5 mm long, while queens can be up to 4 mm long.
  • Color of black garden ant: The color is dark-brown, black, or jet black.
  • Body of black garden ant Their pedicel, or ant waist, is divided into two halves. Little black ants have no spines and an irregularly shaped thorax.


Throughout their two-or three-hour trip, black garden ants mate, but many of them are devoured by birds. The males perish after the pairing trip, but the mated females that survive lose their wings and build separate chambers in ideal nest locations in the earth. The new queen lays just a few eggs and raises the caterpillars to adulthood; these grownups are her first workers, and the consecutive broods of workers that arise in the spring will care for the queen, rear the larvae, defend the pupal cocoons (the familiar cream-colored so-called “ants’ eggs,” and gather food for the queen and colony for the rest of the queen’s life (up to 15 years).

black garden ant

The duty of the young queen in rearing the first generation of workers is the most difficult phase of the black garden ant and life cycle. This is tough because she can’t scavenge for food and doesn’t have any aphid herds. When the queen’s first eggs hatch, she locks herself in a chamber below and nourishes the larvae with a fluid made from the disintegration of her muscles.


Communities of little black garden ants can number in the thousands, and they like to live in dark, sheltered locations. Workers may be observed foraging on trails and walking along pavements and basement walls. Inside all day, the small black ants can be found in wooden objects, as well as in walls and at the carpet-wall intersection.


Black garden ants, which are frequently found in and around gardens, are not hazardous since they perform vital outdoor activities. Ants aerate the soil, break down natural matter, and keep competing insects in check. As a result, your objective should not be to eliminate them completely, but rather to regulate insects and prevent them from leaving your house. Ant damage varies depending on the type of ant. Ants, on the other hand, nest inside the wood and can cause compromised wood construction. Any evidence of ants might indicate a problem with aphids, which are harmful to your plants. Aphids and ants have a unique connection.

So keep an eye out for any signs of plant deterioration, and search for aphids. Chemicals marketed to control ants without damaging adjacent plant material are available at most lawn and garden centers, as well as most home improvement stores. For various ant species, black garden ants and/or carpenter ants, which are a bit more difficult to get rid of, there are a number of control methods. Avoid striking the plant immediately with the chemical if it is not designated for use on or near a particular plant.


  • Cleaning up spilled food and liquids with disinfection will help to eliminate the amount of pheromone that ants track.
  • Remove any simple food supply by sweeping away food crumbs from behind kitchen equipment and units.
  • To safeguard food and prevent ants from accessing it, store it in sealed containers whenever feasible.
  • Seal any gaps and crevices around your windows and doors to prevent access.

The black garden ant may usually be kept out of a home if precautions are taken. Garden ant eradication, on the other hand, will require experienced specialists if the nest is too close to a structure or inside the wall gaps. Because it is far harder to eradicate the nest, eggs, and queen instead of simply the wandering worker ants. Ants are so little that they can easily make their way into your home, especially in summer when shutters are regularly opened. It was most probably the black garden ant if you’ve seen ants scurrying about your kitchen.

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