Updated: May 17, 2023

Flies are one of the most common pests found in homes and businesses worldwide. They can be a nuisance as they fly around, land on food, and even bite. But how do these pesky insects manage to spread so quickly? In this article, we will explore the various ways in which fly infestations spread and what can be done to prevent them.

The Life Cycle of a Fly

Before we dive into how fly infestations spread, it’s important to understand a bit about the life cycle of a fly. Flies go through four distinct stages – egg, larva, pupa, and adult. The entire life cycle can take anywhere from a few days to several weeks, depending on the species of fly and environmental conditions.

Flies lay eggs on decaying organic matter such as garbage, feces, or animal carcasses. These eggs hatch into larvae, also known as maggots. Maggots feed on the decaying material until they pupate and transform into an adult fly. Once matured, adult flies mate and lay more eggs which start the cycle all over again.

Attracted to Food Sources

One of the primary reasons that flies spread so quickly is that they are attracted to food sources. Flies are particularly drawn to decaying organic matter such as meat, fruit, vegetables, and even pet food. They are also attracted to sugary substances like soda or juice spills.

In homes and businesses, flies can easily find their way inside through open doors or windows in search of food sources. Once inside, they will immediately begin to search for any available food sources. If there is an abundance of food available, flies will lay eggs near those areas so their larvae have ready access to a food source.

Laid in Large Numbers

Another way that fly infestations can quickly spread is due to the sheer number of eggs that female flies can lay. Depending on the species of fly, a single female can lay anywhere from 75 to 1,000 eggs in a lifetime. This means that even just a few flies can quickly turn into hundreds or even thousands if left unchecked.

Easily Transported

Flies are known to be excellent hitchhikers, making them easily transportable from one location to another. They can attach themselves to clothing, bags, or even human skin and be carried unknowingly to new locations. This is why it’s not uncommon for people to unknowingly bring flies home with them after visiting other places.

Breeding Grounds

Flies prefer warm, moist environments for breeding and laying their eggs. This makes places like garbage cans, compost piles, and animal feces ideal breeding grounds. If these areas are not properly maintained, they can quickly become infested with flies.

Prevention Methods

Preventing fly infestations from spreading is key to keeping them under control. Here are some tips on how to prevent fly infestations:

  • Keep food sources covered: Store food in airtight containers and keep garbage cans tightly closed to prevent flies from accessing food sources.
  • Clean up spills immediately: Wipe up spills as soon as they happen to prevent flies from being attracted to sugary substances.
  • Properly dispose of trash: Make sure trash cans have tight-fitting lids and are emptied regularly to prevent flies from breeding in them.
  • Keep outdoor areas clean: Regularly clean up pet waste and keep compost piles covered to prevent flies from breeding.
  • Seal entry points: Install screens on windows and doors to keep flies from entering the home or business.

In conclusion, fly infestations spread quickly due to their attraction to food sources, large numbers of eggs laid, ease of transportation, and ideal breeding grounds. By understanding how they spread, we can take steps to prevent fly infestations from becoming a major problem. Proper hygiene practices and regular cleaning can go a long way in keeping these pests at bay.