How Long Can A Fly Live Without Food And Water?

Flies have amazing adaptations but how long can a fly live without food and water? Keep reading to learn about flies and how they survive. We’ll cover the types of flies, their life cycle, and how to stop them from taking over. Let’s get started and find out more about flies!


How Long Can A Fly Live Without Food And Water?
House fly


The Different Types of Flies

Before we get into how long flies live, let’s learn about the types of flies we usually find in our homes. Knowing what type of fly can enter your home will help you know how to handle and stop them from taking over your home. Here are some of the most common flies you might see:

  1. House Flies: These big, gray, and black flies are the ones we often see flying around our houses. They get into trash cans and can spread diseases.
  2. Fruit Flies: Fruit flies like ripe or rotting fruits. They’re whitish or tan with red eyes and can also lay eggs in drain lines.
  3. Drain Flies: People often mistake drain flies for small house flies because drain flies are furry and look like moths. They usually live in sinks, showers, and drains.
  4. Blow Flies: They are bright blue or green insects, sometimes known as bottle flies, and are drawn to animal carcasses or rotting meat.

Now that we know the common types of flies, let’s look at how long they live and how they survive.


The Fly Life Cycle

To understand how long flies can live without food and water, we need to know about their life cycle. A fly’s life cycle has four stages: egg, larvae, pupae, and adult.

  1. Egg Stage: In the egg stage, female flies lay their eggs on or near food. The eggs hatch into larvae within a short time, usually 8 to 20 hours later.
  2. Larvae Stage: The larvae, often called maggots, eat organic stuff like dead animals, manure, or trash. They molt several times and can grow to be about 7 to 12 millimeters long.
  3. Pupae Stage: Once the larvae have completed their feeding stage,  they move into the pupae stage. During this stage, they make a cocoon-like structure and change into adult flies.
  4. Adult Stage: In the adult stage, fully grown flies come out of the pupae and are ready to make more flies. They have wings, antennas, and legs. The length of time adult flies live can change based on the kind of fly and where they live.

Now that we have a basic understanding of the fly life cycle, let’s look at how long flies can survive without food and water.


Read also: Drain Gel Fly Killer: How To Use According To Product Label


How Long Can A Fly Live Without Food And Water?

How Long Can a Fly Live Without Food?

Flies, like all living things, need food to live. If they don’t have food, they won’t live as long. There is a misconception that flies can only live for a day without food, but that’s not true. The actual time flies can live without food varies depending on the kind of fly and where they are.

Normally, flies can live for about two to three days without food. But if they have water and other nutrients, they might live a little longer. Flies like sugary things and proteins because they give them the energy they need. Without these foods, flies will eventually die.

But remember, flies can lay lots of eggs in their life, so even if one fly dies quickly, there are more to take its place.


How Long Can a Fly Live Without Water?

Flies need water to stay alive because it’s important for their bodies. They get most of their water from the food they eat, but they can also get it from things like condensation or wet places.

Even though flies can go without water for a little while, if they don’t have enough for a long time, they can die. Without water, flies get weak and can’t fly or make more flies. Normally, flies can go without water for about two to three days. But flies are smart and will look for water if they need it.


Do Flies Feel Pain?

Scientists and researchers are still debating whether flies can feel pain. Flies have a simple nervous system, and their ability to sense things is not as advanced as in mammals or the complex brain structures needed to feel pain like humans do.

But flies can react to things that can hurt them. They might move away quickly if they sense danger, like if someone tries to swat them or if there’s a predator nearby. These reactions are probably more about staying safe than feeling pain like we do.

It’s hard to say for sure if flies feel pain, but it seems like their reactions to danger are more automatic than something they consciously feel.


Read also: Horn Fly Control: The 4 Steps To Get Rid of Horn Flies


Do Flies Sleep at Night?

Flies don’t sleep like humans do. Instead of long periods of sleep, they rest for short periods throughout the day and night. They’re most active during the day.

When they rest, flies look for safe spots like building overhangs, trees, or tall grass. These places keep them safe from enemies and bad weather.

Even though flies don’t sleep like us, their rest times are important for saving energy and getting ready for their next active time. When they rest, flies rebuild their energy.


How to Identify the Kind of Flies in Your House

To control pests like flies in your home, it’s important to know exactly what kind of flies you’re dealing with. Different types of flies behave differently and may need different ways to get rid of them. Here are some tips to help you figure out what kind of flies you have:

  1. Appearance: Look at the flies closely to see what they look like. House flies are usually gray and black, while fruit flies are smaller and have a whitish or tan color with red eyes.
  2. Behavior: Watch what the flies do and where they hang out. House flies like to be around garbage, while fruit flies like ripe or rotting fruits.
  3. Breeding Sites: Find where the flies usually are. Drain flies like sinks, showers, and drains, while blow flies go for dead animals or rotting meat.


Will Flies Go Away On Their Own?

If you’ve seen a few flies in your home, you might wonder if they’ll leave on their own. While a single fly will eventually die naturally or because it can’t find food, a few flies can quickly become a problem if your home has what they need to survive.

Flies like places with lots of food, water, and places to lay eggs. If your home has these things, flies will keep coming back until something changes or you use pest control to get rid of them.

To stop flies from becoming a problem, get rid of things that attract them and make your home less inviting for flies.


How to Prevent Flies in Your Home

Preventing flies is important for keeping your home bug-free. Here are some good ways to stop them from becoming a problem:

  1. Maintain Cleanliness: Keep your home clean by cleaning it often. Pay attention to places where food might get left behind. Wipe down counters, sweep floors, and make sure to throw away trash properly.
  2. Proper Food Storage: Put your food in containers that seal tightly to keep flies away from it. This includes human food, pet food, and anything else with sugar in it.
  3. Seal Entry Points: Check your home for any holes or openings where flies might get in. Close windows, doors, and any other ways flies can get inside.
  4. Proper Waste Management: Take the trash out often and clean the trash cans to stop flies from being attracted to rotting stuff.


Read alsoHow Long Can A Squirrel Live Without Food Or Water?



Flies can survive for a few days without food or water and reproduce quickly. If you don’t take steps to prevent or control them, they can become a big problem.

Understanding how flies live, knowing what kinds are in your home, and using prevention methods will help you keep your home free of flies.

If you have a big fly problem, it’s best to get help from a pest control professional to get rid of them completely. Prevention is important for managing flies and keeping your home clean and comfortable.

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