Nuisance and Biting Flies
House Fly, Blow Fly and Bottle Fly, Soldier Fly, Flesh Fly
Inspection Of Filth Flies
Inspection for House
House Flies may be found feeding and breeding in fresh manure, rotting fruits and vegetables, damp garbage and damp, 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 important 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 a 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.
Inspecting for Flesh Flies
Flesh flies generally do not infest structures in large numbers or with any regularity. Flesh flies will be attracted to buildings by odors emitting from the dumpster or the building itself. Rendering plants and meat processing facilities may attract more flesh flies than other types of facilities such as a hotel or hospital. Occasionally, one or more flesh flies will manage to enter the building. If this is the case, try to determine if a breeding source is located near the building and how flies might be entering the structure. Accumulation of garbage under a dumpster is a common breeding source for flesh flies near buildings. Occasionally, a large number of flesh flies will suddenly appear in a particular area inside a building. These flies are most likely breeding inside a dead rodent or bird inside a wall, false ceiling, or the attic. Occasionally, mature maggots may be found crawling about. These larvae have left the breeding source in search of a place to pupate. Most infestations of flesh flies can be attributed to garbage or rodent carcasses found in or underneath trash dumpsters. Most infestations of indoor Flesh Flies are small in numbers and can be traced to dumpsters, meat processing plants or rendering facilities located nearby. If large numbers of these pests are found indoors, it can usually be attributed to a dead animal such as a rodent or bird. Backtracking the paths of fly maggots will many times help locate the carcass or source of indoor Flesh Fly infestations. If fly maggots are located in light fixtures, an inspection of the attic and nearby wall voids might be necessary.
Inspecting for Blow/Bottle Flies
Blow /Bottle flies breed in damp organic material such as garbage and dead animals; therefore, most of these pests found indoors actually originate from an outdoor source. Small numbers of Blow flies in a structure usually point to an outdoor source. If large numbers of these flies are found indoors, it may be a sign of an indoor infestation. Indoors, look for signs of dead rodents or birds that may have been living in walls or crawl spaces, or even living in lower cabinets and under major appliances. Outdoors, inspect the area for dead animals; any nearby dumpsters or other garbage containers should be inspected.
Inspecting for Soldier Flies
When Soldier Flies are found in a building, it is usually the direct result of a nearby dumpster or other such garbage receptacle. Inspect dumpsters, compost piles and garbage cans; the peculiar larvae and pupae will be found under or around dumpsters. The younger maggots will be buried in a compost pile or damp organic material and are more difficult to locate. It is during the last instar that the maggots crawl to visible areas to pupate. The organic material in which the Soldier Fly breeds is always damp and usually in an advanced stage of decomposition.