Flies are one of the most common flying insects and their life cycle is much faster than that of fleas. Female flies can lay up to 150 eggs in one batch and over 800 in less than a week. The eggs hatch after seven days and the adult fly lives about three weeks. These insects feed on decaying organic matter and are often found on dark, damp surfaces.
Flies lay their eggs on decaying organic matter such as food waste, carrion, or feces. Their eggs are white and about 0.05 inch long. Once laid, flies’ eggs hatch within eight to twenty hours. Depending on the type of fly, these eggs can produce multiple generations.
When flies lay their eggs, they leave behind small, white worms called maggots. These are hard to detect with the naked eye, but if you find some, remove them from the area. You should also avoid bringing outdoor debris inside the home. For example, grass clippings can carry flies’ eggs and are easy to transfer indoors.
When fruit flies lay their eggs, they can lay as many as four hundred in a single day. The eggs are small, and an adult fruit fly may lay up to 400 eggs during its lifetime. During the summer, the adult fruit flies will fly around to look for food and shelter. As a result, their numbers tend to increase in spring and summer when the temperatures are warm.