House flies are typically grey with dark stripes running down their backs. Their size can vary, but in general, the house fly is about ¼ of an inch in length. They prefer to lay their eggs in a warm, moist medium where their larvae (maggots) can flourish. This could be in your trash can or outside near grass clippings or garden waste.
The most common variants of blow flies are the green bottle and blue bottle flies, easily identified by their blue or green metallic sheen. Blow flies typically lay their eggs in carrion flesh or dung, where their larvae can flourish. This means that if you have numerous blow flies in your home or business, you likely have a dead animal somewhere nearby.
Fruit flies are very small and breed so quickly that scientists use them for experimentation and study purposes. There are two main types of fruit fly that we deal with: the red-eyed and the dark-eyed fruit fly. The red-eyed variety of fruit fly is known for its love of being near anything associated with fermentation, including liquor bottles, beer taps and overripe fruit. The dark-eyed fruit fly, one of the more difficult pests to contain in the food service industry, prefers to breed in decomposing organic matter such as worn grout in a tile floor, a dirty drain or a wet mop.