How To Get Rid Of House Flies

Learn the best ways to get rid of and prevent house flies.

House fly control

The First step in House fly control is exclusion and sanitation. After these measures, you can use insecticides that come in residual forms, aerosols, fogging materials, and baiting forms.

Flytraps have long been a favorite. There are many forms of fly traps, from disposable fly traps to electronic fly light traps with replaceable light bulbs and glue boards

House Fly
House Fly

Exclusion and Sanitation-First Step

  1. Sanitation is the first measure of defense. Even though various traps and sprays are used to kill flies, it is necessary to eliminate the source to remove them.
  2. Whenever possible, food and materials on which the flies can lay eggs must be removed or destroyed, which will isolate the egg-laying adult. Killing adult flies will reduce infestation, but the elimination of breeding areas is necessary for good House Fly control management.

House Flies are part of the Filth Flies category

Key Takeaway

Fly control is best achieved with a multi-pronged approach that can consist of a combination of sanitation, exclusion, fly baits, residual sprays, and fogging.

Get Rid Of Flies - Fly Control Product Recommendations

Residual Insecticide Concentrates

House flies rest on sunny surfaces in the daytime, and have a tendency to come inside or under eaves at night. These areas where the flies are resting can be sprayed with residual or contact insecticides. The flies rest on the sprayed surface and pick up enough insecticide to kill them. When spraying the surfaces, it should be wet enough to the point of runoff, but not enough to form puddles.

Insecticide Dusts

You can also use a dust D-Fense Dust. Dust this into all cracks and crevices. This dust will flow into the void areas. Pay attention to the west and south walls and caulk any openings.

Pyrethrin Insecticide Aerosols

For immediate results, use pyrethrins in an aerosol form and space spray. Pyrethrins work quickly but give no lasting residual. These aerosols can be used as a quick kill insecticide, reducing flying insects' populations for short term results.

Metered Aerosols + Dispensers

Metered aerosols with pyrethrin to use with automatic dispensers for inside use.

Fly Baits - Outside Use

Insecticide granule fly baits such as can be used to aid in house-fly control. You can distribute these baits along walls, window sills, or other areas where flies congregate inside buildings and in areas outside where flies congregate. Maxforce Fly Spot Bait is a convenient form of Maxforce Fly Bait, where you are may spray in on a surface.

As with all fly control, sanitation is extremely critical when using a fly bait. Remove trash and other breeding sources so that the fly bait will be their only feeding source. Make sure the baits are inaccessible to animals or children.

Fly Light Traps - Inside Use

These electronic fly light traps are very efficient and functional to be used inside only. They are very popular in restaurants and commercial buildings. We carry fly zappers, fly lights with glue pads. The top recommendations for fly light traps are the Matrix II All Seasons Fly Traps.

The flytrap comes in two colors, white and black.

Fly Glue Traps, Window Fly Traps, and Outside Fly Traps

Musca-Stik Sticky Fly Trap provides an insecticide-free solution to catch flies. The Musca-Stik attracts flies with a sex pheromone called Muscalure and an orange color that visibly lures flies. It is discreet and odor-free (minus the flies caught on it ).

Revenge Window Fly Traps fly paper to use on windows to catch flies.

Flies-Be-Gone Flytrap is a disposable, non-toxic flytrap, and a green solution fly trap. This fly trap may be used outside in such areas as gardens, farms, yards, trash areas, corrals and stables. It will catch up to 20,000 flies, with a range of 50-100 yards.

House Fly Identification and Inspection

House Fly

Inspection for Houseflies

Inside:

Trash cans, dirty diapers, rotten foods, etc. are possible breeding areas for inspecting House Fly activity.

Outside-Breeding Sites:

House Flies may be found feeding and breeding in fresh manure, rotting fruits and vegetables, garbage, damp garbage, and decaying organic materials that are located outside of the structure.

Most of the time, when you find house flies inside, it is because they are coming inside the structures. Check cracks around windows, doors, and vents as possible entry points. It is crucial to determine where the breeding sources are located and how they are entering the buildings. Rural areas where farms are present may be more problematic for the higher number of breeding sites than areas in an urban setting. In residential areas, pet manure, which is not picked up regularly, can be a breeding source for house flies.

Identification of Houseflies

The common housefly is medium-sized (1/6 to 1/4 inch long. The common housefly is a pest all over the world. The adult has the fourth wing vein sharply angled and four length-wise dark stripes on the thorax's top. Its face has two velvety stripes, which are silver above and gold below. The female fly has a much wider space between the eyes than the male. The house fly is often confused with the face fly, which also infests structures. The face fly is similar in appearance but a little larger and darker than the House Fly.

House Fly Biology and Habits

During daylight hours, House Flies will rest on floors, walls, and ceilings indoors. Outdoors they will rest on plants, on the ground, on fence wires, garbage cans, and other similar surfaces. At night, they will rest principally on ceilings, electric wires, and dangling light cords indoors. In all situations, House Flies prefer corners and edges or thin objects such as wires and strings. Night resting places are usually near daytime food sources and are usually 5 to 15 feet off the ground.

Each adult female begins laying eggs a few days after hatching, laying a total of five to six batches of 75 to 100 small white oval eggs. In warm weather, these hatch in 12 to 24 hours into cream-colored larvae, which burrow into the food material they hatched. These larvae grow and pupate in 4 to 7 days in warm weather. The mature larva contracts until its skin forms a case about 1/4 inch long. Inside this case, the true pupa forms. When fully developed, the adult fly breaks open the end of the pupal case and emerges. It is ready to mate within a few hours after merging. The hardened larval skin, which is left behind, still exhibits most of the characteristics used in larval identification; thus, a determination can often be made based on the skin alone.

During warm weather, two or more generations of House Flies may be completed in a month. Normally the population builds up and is greatest in the early fall months. The overwintering method is not well understood, but in some areas, populations develop indoors throughout the winter.

Housefly eggs are laid in almost any warm moist material that will furnish suitable food for the growing larvae. Animal manure, human excrement, garbage, decaying vegetable material, and ground contaminated with organic materials are appropriate materials. Although they are attracted to a wide variety of food materials, house flies have mouth parts that enable them to ingest only liquid materials. Solid materials are liquefied using regurgitated saliva. This liquefied food is then drawn up by the mouthparts and passed onto the digestive tract.

Prevent House Flies

  1. Garbage cans and dumpsters should have tight-fitting lids and be cleaned regularly.
  2. Drainage will often aid control, getting rid of extra moisture.
  3. Openings of buildings should be tightly screened with a screen.

Fogging Insecticides and Professional Foggers

If you find that fogging inside a building would be necessary, we also carry fogging material and professional fogger equipment.

Written by our resident pest control expert Ken Martin.