DRAIN FLIES

ADAM’S TAKES CARE OF DRAIN FLIES AND THEIR BREEDING GROUNDS.

Drain flies, also known as moth flies, are often found on the walls of bathrooms, kitchens, or in the basement, near plumbing fixtures, and on the sides of showers and tubs. Larvae develop usually in and feed on the gelatinous film (slime) that can build up inside drains, thus the common name of "drain flies".

Adam's Pest Control Gets Rid of Drain Flies Fast.

  • Fast, local response.
  • Competitive pricing
  • Friendly service
  • Licensed professionals
  • 100% satisfaction

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Adam's Treatment

Your Adam’s pest management professional will use a combination of proven techniques to exterminate even the toughest drain fly infestation.  As applicable, we will apply a proven, EPA-approved residual insecticide to cracks, and crevices and spot treat under appliances and floor mats, around plants, dumpsters, doors and windows. The application may be repeated at 2 to 4 week intervals depending upon the severity of infestation.

Pesticides can be used to control adult drain flies, but this treatment will provide only temporary benefit unless the source of the larval feeding and breeding is also removed.

Adam’s recommends using a bio-cleaning product to clean inside of the drainpipe and wherever organic matter may be found.  Foaming bio-cleaning products are preferred because they can reach and stick to hard-to-clean surfaces where larvae could be easily missed by using other cleaning products. Adam’s may also apply approved insect growth regulators (IGR) into and around the drains.

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Schedule A Treatment

Adam’s Pest Control has a dedicated team of representatives who are driven to protect your home or business and can answer any questions that you may have.

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A Closer Look

Known Issues

  • Contaminates Food
  • Structure Invading

Active Seasons

  • Summer

Pest Overview

DIY Treatment

Frequently Asked Questions

HOW DO I KNOW IF I HAVE DRAIN FLIES?

  • Adult drain flies are not strong fliers and typically can be seen resting on the walls in bathrooms or near the drain that is their breeding area.
  • Drain flies become a nuisance when there is a large infestation.

WHAT DO DRAIN FLIES, OR MOTH FLIES, LOOK LIKE?

  • Adult drain flies are small; about 1/16” to ¼” in length.

  • Drain flies are yellow to brown to black.

  • Mature drain flies have six legs, a pair of wings, and prominent antennae.

  • The key identifying characteristics of the drain fly are the unique pattern of veins, as well as their hairy appearance.

  • Drain flies hold their wings over their bodies like a roof when resting.

  • If crushed, drain flies leave a powdery smudge.

  • People rarely see drain fly larvae since they live in the slime on the inside of drains.

  • Larvae are tiny about 1/8”to 3/8” in length.

  • Drain fly larvae do not have eyes or legs.

  • Drain fly larvae have a dark breathing tube at one end which they can extend out of the slime in order to breathe.

ARE DRAIN FLIES DANGEROUS?

  • No, drain flies do not bite.

  • Although drain flies are associated with filthy habitats, such as drains, there is little evidence that they are disease vectors.

  • However, in areas heavily infested with drain flies, people may be vulnerable to develop bronchial asthma from breathing in dust and body parts from dead drain flies.

WHY ARE DRAIN FLIES IN MY HOUSE?

  • Adult drain flies are often found adhering to the walls of bathrooms, kitchens, or basements.

  • Drain flies rest during daylight hours on walls near drains, near plumbing fixtures, and on the sides of showers and tubs.

  • Drain flies are attracted to light and become more active at night and hovering over drains, sinks and other breeding areas.

  • Drain flies also can breed in protected locations with constantly moist and decaying organic materials, such as under dripping pipes, leaky roofs, and refrigeration equipment.

  • Drain fly larvae may also breed in large numbers at sewage filter plants.  

WHAT DO DRAIN FLIES EAT?

  • Drain fly larvae develop usually in and feed on the gelatinous film (slime) that can build up inside drains, thus the common name of "drain flies".

  • Adult drain flies feed on flower nectar and polluted water.

WHAT IS THE LIFECYCLE OF DRAIN FLIES?

  • Drain flies go through a complete metamorphosis, which has four stages: egg, larva, pupa and adult.

  • Each gravid female lays a mass of about 30 to 100 eggs in the moist, decomposing organic materials along the inside of drains.

  • Eggs hatch within 32 to 48 hours at 70°F.

  • Larvae mature in 9 to 15 days feeding on the decaying organic matter, microorganisms, and algae.

  • Pupae occur in or on the surface of the breeding media and, after 20 to 40 hours, new adults emerge.

  • The life cycle can be completed in one to three weeks.

  • Adults live about two weeks.

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