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Monomorium
minimum
Characteristics –
Size: Workers of this species measure about 1/8-inch in
length. Colonies contain multiple queens who are 2 to 3 times larger
than the workers.
Color: Jet black
Behavior –
Little black ants are usually seen around homes following
well-defined trails between the nest and food and water sources.
They feed on a wide variety of foods, but the workers are partial to
the sweet honeydew produced by aphids, scales, and mealy bugs found
feeding on many trees and plants. Fruit trees, roses, and many
shrubs serve as hosts for aphids and may contribute to ant
infestations in homes and other buildings. Most infestations inside
are the result of workers searching for food. On occasion, a colony
or part of a colony may establish itself inside a wall, behind brick
veneer or beneath the carpet by a doorway.
Habitat – This ant will take advantage of any
suitable, moist space to locate its colony. It is commonly found
infesting rotted logs, stumps, and fence posts and may be found in
tree holes and dead tree limbs far above the ground. Nests are also
commonly located within piles of lumber, rocks, bricks, and similar
items.
Tips for Control – Infestations of little black
ants often require patience and skill to follow the trails back to
the nest. The type of treatment used depends on the location of the
nest (e.g., inside wood, within a brick pile, etc.). Baits can be
effective but require persistence and follow-up to achieve results.
General tips for limiting ant infestations include:
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Eliminating piles of lumber, bricks, or other debris that
could serve as a nesting site for ants.
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Keeping landscape mulch less than 2 inches thick and at least
12 inches away from foundations.
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Ensuring the sprinkler system does not spray directly onto the
foundation.
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Sealing as many cracks in the building's exterior as possible.
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Keeping tree and shrub branches trimmed to prevent touching
the building.
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Considering re-landscaping to avoid using plants that are
prone to aphids and similar insects. At the very least, treat
such plants for aphids regularly. A tree/shrub company, such as
TruGreen ChemLawn, can be helpful with this task.
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