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. Fly traps 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.
Exclusion and Sanitation
- Sanitation is the first measure of defense, even though there are various traps and sprays that are used to kill flies, it is necessary to eliminate the source in order to eliminate them.
- Whenever possible, food and materials on which the flies can lay their eggs must be removed or destroyed, which will isolate the egg-laying adult. Killing adult flies will reduce infestation, but elimination of breeding areas is necessary for good House Fly control management.
- Garbage cans and dumpsters should have tight-fitting lids and be cleaned regularly.
- Drainage will often aid control, getting rid of extra moisture.
- Openings of buildings should be tightly screened with screen.
Inspecting For House Flies
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 find out 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 a urban setting. In residential areas, pet manure, which is not picked up regularly, can be a breeding source for house flies.
House Fly Identification
The common House fly is medium sized (1/6 to 1/4 inch long. The common house fly is a pest all over the world. The adult has the fourth wing vein sharply angled and four length-wise dark stripes on the top of the thorax. 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 & Habits
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 on which 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 formed, the adult fly breaks open the end of the pupal case and emerges. It is ready to mate within in a few hours after merging. The hardened larval skin, which is left behind still exhibits most of the characteristics which are used in larval identification; thus determination can often be made on the basis of 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 early fall months. The method of over wintering is not well understood, but in some areas populations develop indoors throughout the winter.
House fly eggs are laid in almost any warm moist material which will furnish suitable food for the growing larvae. Animal manure, human excrement, garbage, decaying vegetable material and ground contaminated with such organic materials are suitable materials. Although they are attracted to a wide variety of food materials, house flies have mouthparts which enable them to ingest only liquid materials. Solid materials are liquefied by means of regurgitated saliva. This liquefied food is then drawn up by the mouthparts and passed onto the digestive tract.
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 sources of food and are usually 5 to 15 feet off the ground.
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