There are two main flies seen around all summer:
- House Fly (AKA filth fly, garbage fly)
- Blow Fly (AKA bottle fly, blue fly, green fly)
What is a Common House Fly?
The housefly is one of the most common of all insects. Adults are dull, medium-gray flies, 1/6- to 1/4- inch long with four dark stripes on the thorax and orange/red “eyes”. They have sponging, non-biting mouthparts for sucking up liquefied foods. These medium-sized flies are attracted to human and animal waste and decaying garbage. Maggots are one of the life cycle stages of houseflies.
What is a Blow Fly?
They generally range from ¼- to ½-inch long and are characterized by metallic blue, green- or copper-colored bodies. In urban areas, they are sometimes more abundant than houseflies. Females lay eggs on garbage containing meat scraps, as well as on dead animals and animal wounds. They may also deposit eggs onto feces-caked hair or wool on pets and other domestic animals.
Why Do I Have Them?
Truth is, everyone in the world has both types of common flies because they’re everywhere and eat everything.
Are They Dangerous?
Both types of flies can spread disease easily because of the way they digest their food and eliminate their waste. When feeding, these flies regurgitate liquid from the stomach to dissolve food, and then use their sponging mouthparts to suck it up. They leave fecal spots, or “specks,” where they have walked. Because of these habits, they are capable of transmitting filth-related diseases such as diarrhea and dysentery.
How Do I Get Rid of Them?
Again, truth is, unless you’re structure has been vacuum-packed and never open to the outdoors, you’re going to have these flies. However, there are measures you can take that will greatly reduce their presence. Sanitation is the most important and effective measure in controlling common flies.
On the interior, keep food of all types in a well-sealed container, don’t let trash containers get ripe and spoil, keep doors and windows closed. Best elimination method on the interior is the good, old-fashioned fly swatter.
On the exterior, remove all potential larval food materials such as animal manure, rotting mulch, lawn clippings, and animal or bird carcasses. Compost piles, if not properly maintained, may also produce large numbers of filth flies. If this is the case, eliminate the compost pile or cover it with black plastic sheeting, which will trap heat and reduce fly survival. Professional pest control treatments to the exterior of your structure will greatly reduce fly activity and survival on and in your space.