Best Fly Killer Spray and Some Alternatives

Whether indoors or outdoors, no one likes to be swarmed by insects. And the problem is that some insects, like mosquitoes and ticks, can carry serious diseases like the West Nile virus and Lyme disease. and in this article, we’ll tell you what is the best fly killer spray and what alternatives there are.

Summer means many beautiful things. It means sunshine, barbeque, camping, hiking, and the great outdoors. But it also means flies, mosquitoes, and biting gnats, among other nasty bugs that infest our outings and turn them into a stinging nightmare.

sprays for flies

The common house fly is one of many fly species that have become pests throughout history. This type of fly is a particular nuisance due to its ability to spread disease and cause damage to property.

To effectively eliminate these pests, various types of fly killers have been developed over time. Whether through chemical or physical methods, these tools help control the population of common houseflies and other types of flies.

Even at home, we sometimes encounter these unwelcome guests. Many insect and fly repellents can kill various species including ticks, bed bugs, mosquitoes, crawling insects, stable flies, carpenter ants, biting flies, stink bugs, and flies.

does insect repellent work on flies


Are Insect Repellents Safe to Use?

When it comes to insect repellents, there are a number of different options available. Some people prefer insect sprays or insect balms that you apply directly to the skin, while others may opt for insect-repellent clothing or insect traps to protect themselves from biting insects.

However, there are also some risks associated with insect repellents. For example, insect sprays and balms can sometimes irritate the skin or cause allergic reactions in some individuals.

fly repeller

In addition, insect repellents may contain chemicals that are harmful to the environment, particularly when used frequently or in large quantities. Ultimately, the risks associated with insect repellents will vary depending on a person’s sensitivity and personal preferences.

However, it is important to consider these risks before using insect repellents in order to protect yourself and those around you. Perhaps, you can look for a multi-purpose fly repellent that can kill flies and insects in residential, commercial, mobile homes, and barns for farm animals.

Safe on Skin?

If you’re looking for an insect spray that is safe to use on human skin? Check for the active ingredients, and look for one with picaridin, which is rated to be safe for human skin contact. They’re also great for indoor use.

This chemical is an alternative to DEET in terms of effectiveness and duration. Picaridin is also less toxic to marine life than DEET, but it is still considered moderately toxic by the Environmental Protection Agency (EPA), Centers for Disease Control (CDC), and the World Health Organization (WHO).

best flying insect repellent

This makes it a great option if you’re looking for a non toxic mosquito repellent that you can apply directly to your skin. Additionally, this formula is highly effective against mosquitoes, including flies, gnats, and crawling insects, such as ticks.

There are several green-friendly indoor fly sprays on the market now, many of which include essential oils as their active components. These oils are typically extracted from plants like peppermint and wintergreen, fragrant plants that already have a strong insect repellent built in.

How Long Before a Fly Killer Start to Work?

When it comes to fly killers, there are a few things to keep in mind.

First of all, different products work in different ways. Some fly killers will work immediately on crawling insects, but may not work well with stink bugs. Others may take a few minutes to start working. Many sprays are perfect for both indoor and outdoor use.

best fly and mosquito repellent

Additionally, fly killers may only be effective for a certain amount of time before the flies become immune. As a result, it is important to choose a fly killer that is right for your needs, and it contains active ingredients that offers residual protection as well.

If you need immediate results, look for a fly killer that will work quickly. If you are concerned about fly immunity, choose a product that is designed to last. With so many options on the market, finding the right fly killer is easy.

Top 5 Recommendations

When it comes to eradicating pesky bugs and other insects, there are many products out there that claim to get the job done.

But we’ve selected our favorite sprays to kill germy flies based on their effectiveness, user-friendliness, and other qualities that make them ideal for getting rid of specific pests.

best insect repellent for flies

Whether you’re dealing with ants, mosquitoes, roaches, or other common insect invaders, one of the sprays on our list is sure to be a good match for your needs.

We looked at three main aspects when evaluating the products: efficiency, safety, and price. These five flying insects killer sprays work perfectly fine indoor and outdoor. It can prevent flies infestation in homes.

Best Overall: Black Flag Flying Insect Killer Aerosol Spray

Looking for a way to finally get rid of those pesky house flies, mosquitoes, small flying moths, and other pests once and for all? With a simple application, this spray goes to work effectively targeting the pests in question and eliminating them for good.

Whether you’re dealing with small flies or larger insects like moths, this powerful formula gets the job done quickly and effectively.

The Black Flag Flying insect killer comes in the first place. This fly killer comes with a cheap price tag, and its relatively large container size mean that you get the best value for your money.

flying killer

You can spray it on windows, doors, and other surfaces where flying insects are likely to land. It kills flies and other insects fast, and it also works as a fantastic fly repellent. This fly killer also works for other flying insects.

It continues to kill for 12 weeks after being sprayed on a surface. The long-lasting effect is superior in duration to any other products we reviewed. This product also dries fast, making it ideal for indoor spraying where safety is important.

 What We Like:

  • Fast-acting
  • Kills on contact
  • No residue
  • Can be used on plants

 What We Don’t Like:

  • Strong odor

Runner Up: Raid Flying Insect Killer

Raid Flying Insect Killer, 15 OZ (Pack of 3)
  • Kills: Asian Lady Beetles, Boxelder Bugs, Flies, Fruit Flies, Hornets, Mosquitoes, Non-biting Gnats, Small Flying Moths, Wasps, Yellow Jackets
  • Can be used as both an outdoor and indoor insect killer
  • Fruit fly killer with Outdoor Fresh scent

Raid Flying Insect Killer is a well-known name in the battle against house flies and fruit flies. This kills flies fast, and it works as a fantastic fly repellent for both indoor and outdoor use.

Their flying insect killer is a little bit on the expensive side but provides good results indoors and outdoors. Kills larger flying insects like wasps and hornets as well as flies, mosquitoes, and gnats. This fly killer also works for fly control against common flying insects.

For best results, spray directly at the insect. The wide angle of the spray nozzle ensures that bugs get caught in the sprayed mist. It can repel flying insects, small flying moths, and other insects.

Dries fairly quickly and only needs a quick wipe to remove any residue. It comes in two different scents: Outdoor Fresh, and Orange Breeze.

 What We Like:

  • Potent formula
  • Sweet odor

 What We Don’t Like:

  • Relatively expensive

Best for The Environment: Wondercide Indoor Pest Control Spray

Wondercide - Indoor Pest Control Spray for Home and Kitchen - Ant, Roach, Spider, Fly, Flea, Bug Killer and Insect Repellent - with Natural Essential Oils - Pet and Family Safe — Lemongrass 32 oz
  • KILLS & REPELS. A preventative and a treatment, this plant-powered insect spray kills and repels indoor pests and keeps your home protected. Kills...
  • PROTECT YOUR HOME. This versatile bug control spray is also an indoor flea treatment and flea killer for your home. It kills adult fleas on household...
  • SAFE AROUND PETS & FAMILY WHEN USED AS DIRECTED. This spray is safe for daily use around dogs, cats, and family throughout the house when used as...

This plant-based, all-organic insect repellent and killer spray is safe enough to use around people and pets several times a week. It is a fly killer or fly control spray that can easily kill flies, bed bugs, crawling insects, and other unwanted insects.

It contains cedarwood oil, peppermint oil, and sesame oil. It comes in a 32 oz container, larger by far than any other competitor, but more expensive as well.

Because of its organic nature, the spray doesn’t work for a long time after application. Often you’ll find yourself spraying every two or three days for an insect-free house.

flying bug repellent

One other limitation of this pest control spray is that it’s designed to be used indoors only. However, this still works as a strong pest control spray to prevent fly infestation.

One of the top-rated organic fly sprays on the market is Wondercide Spray. It is effective on over 100 bugs and is a natural and highly efficient way to get rid of flies. It is also non-staining and good for indoor or outdoor use.

It’s made from all-natural, non toxic active ingredient and chemicals, so it’s completely safe to use around kids and pets. Plus, it’s non-staining, so you don’t have to worry about ruining your outdoor furniture or clothing.

It will remain effective for several hours before you would need to re-apply or spray again. It has been rigorously tested on many species. This environmentally friendly repellent gives the best bang for reasonable price.

What We Like:

  • Eco-friendly
  • Safe for children and pets
  • Kills on contact

 What We Don’t Like:

  • Indoors only

Best for Large Areas: Country Vet Fly Spray

Country Vet Farm and Ranch RTU Spray Insect Control - 1 Gallon (Case of 4) 345292CVA - Kills Flies, gnats and Mosquitos
  • Ready-to-use Formula - no mixing required!
  • Protect your livestock from flies, gnats, mosquitoes, lice & their eggs
  • Kills lice and their eggs. Kills flies, gnats and mosquitos

Do you want an automated fly-killing spray that also smells as good as an air freshener? Look no more. The active ingredients in this fly killer is extremely effective, but is not noxious even when sprayed directly.

With this metered fly spray, you can cover wide areas with timed sprays that kill bugs and leave your house smelling nice. It also works as a repellent.

A can of Country Vet Fly Spray lasts for 30 days. It can be used for large areas like barns and stables. It’s safe to be used around animals and humans, as all the chemicals included are approved to be used around food industry facilities.

What We Like:

  • Covers wide areas
  • Killer and repellent
  • Smells nice

 What We Don’t Like:

  • Requires a dispenser

Best for Pets: Flys-Off Insect Repellent for Dogs & Cats

Farnam Flys-Off Insect Repellent for Dogs and Cats 6 Fluid Ounces
  • Protects pets from flies, gnats, mosquitoes, fleas, ticks and lice
  • Also works as a surface repellent on bedding
  • Convenient pump spray

For our furry friends, this product kills not only flies and mosquitoes, but also fleas, ticks, and lice. It’s specially designed for dogs and cats to let them enjoy an insect-free outdoor experience. The bottle size is smaller than other products and is a bit expensive.

best personal fly repellent


Apply directly to the pet’s fur or skin. If your pet is afraid of spray bottles, spray your hands and rub the product on the pet. Needs to be applied daily; usually once in the morning is enough. It can also be used as a repellent on surfaces such as beds and cushions.

What We Like:

  • Designed for pets
  • Indoor and outdoor
  • Killer and repellent

 What We Don’t Like:

  • Small bottle size

How Do Fly Sprays Work on Flying Insects and House Flies?

Insect sprays have two main categories: killers, and repellents. Let’s take a look at the differences between them.

Killer Sprays

Both chemical-based and nature-based fly killer sprays work in the same way. The ingredients in the spray attack an enzyme that is responsible for regulating nervous system signals to the muscles.

The destruction of this enzyme results in erratic muscle movements. When affected by the pesticide, the insect’s muscles start to spasm out of control and it dies.

best fly repellent

Repellent Sprays

There are usually too many insects in the great outdoors that it’s not wise nor advisable to try to kill all of them. Instead, you can use repellents that keep the insects away from you.

Most repellents are applied directly to the skin. They either interfere with the insects’ ability to detect you or make you smell undesirable to the insects.

flying insect repellent

Fly Killer Alternatives

Allergies or safety concerns might deter you from spraying chemicals, natural or not, inside your house, on your pets, or on your plants. For this, we bring you a couple of different alternatives to fly sprays that you can choose from.

 Window Stickers – Ortho Home Defense Fly Killer Window Decal

This fly killer should be placed on your window from the outside or inside in a spot high enough so that children can’t reach them. They act as poisonous bait to nearby flies. You should wear proper gloves while placing the sticker on the window.

They’ll keep your home free from flies for as long as 7 months. While other window stickers trap the flies on them with a sticky paste, this product has no sticky paste. Dead flies fall to the floor and can be easily swept away.

Ortho Home Defense Flying Insect Spray

Ortho Home Defense Flying Bug Killer with Essential Oils 14 oz.
9,419 Reviews
Ortho Home Defense Flying Bug Killer with Essential Oils 14 oz.
  • Safe and strong essential oil formula (Safe to use around kids and pets when used as directed.)
  • Safe to use around kids and pets when used as directed
  • Tested and proven to start killing flying bugs in seconds** (**Tested on flies and mosquitoes.)

This Ortho Home Defense Flying Insect Spray is the best product we tested against hornets and wasps. It is also effective against mud daubers and yellow jackets.

The propellant is powerful and can easily spray up to 20 feet away, making it easy to hit nests and other areas where wasps congregate.

Ortho Home Defense Flying Insect Spray may be just what you need. This powerful spray helps to kill and repel a variety of flying insects, including flies, mosquitoes, and gnats.

It also provides up to 12 hours of protection, so you can enjoy your time outdoors without worry. Ortho Home Defense Flying Insect Spray is easy to use – simply spray it around the perimeter of your home and in any areas where insects are likely to enter.

It’s also safe to use around children and pets, so you can rest assured knowing that your family is protected. The large 16-ounce container is also great, as it contains enough formula to last for weeks of repeated use. However, it should be noted that this is a contact killer and not a repellent.

2 Mos-Repel Ultrasonic Pest Repellent (2 Pack)

This DEET-based formula is non toxic, and it is designed to repel a wide variety of flying pests, including mosquitoes, gnats, biting flies, chiggers, and ticks. With up to 25% DEET content, this repellent remains effective for up to 8 hours without leaving any oily or greasy residue. Simply reapply as necessary to maintain protection.

does mosquito repellent work on flies

Eco Defense Organic Home Pest Control Spray

This powerful spray uses a blend of all natural non toxic ingredients to quickly and effectively eliminate a wide variety of common household pests, including flies, ants, roaches, and spiders.

Best of all, Eco Defense is specifically designed to be used around children and pets, making it the perfect choice for families looking for a pest control solution that won’t put their loved ones at risk.

Harris Home Insect Killer, Liquid Gallon Spray

No products found.

When it comes to eliminating flies, pesky bugs, and other pests in and around your home, there are many different products available on the market.

Some rely on harsh chemicals that can be harmful to both humans and the environment, while others focus on all natural ingredients that are safer for use around children and pets.

If you are looking for a safe, effective way to keep your home bug-free, then consider trying an organic home pest control spray like Eco Defense. This powerful formula is made with a combination of non toxic plant-based ingredients that quickly and effectively kill insects without any unwanted side effects.

Whether you’re dealing with flies, ants, roaches, bed bugs, or other common household pests, this eco-friendly spray will help you get rid of them fast.

Cutter Backyard Bug Control Outdoor Fogger

Cutter Backyard Bug Control Spray Concentrate, Mosquito Repellent, Kills Mosquitoes, Fleas & Listed Ants, 32 fl Ounce
  • KILLS FAST: Kills mosquitoes, listed ant types, fleas and other listed insects
  • QUICKFLIP HOSE-END SPRAYER: Hose-end-sprayer activates spray at the flip of a switch – just grip, flip and go
  • LASTS ALL SUMMER: Controls up to 12 weeks against house crickets, carpenter ants, harvester ants, lady beetles and earwigs

Cutter Backyard Bug Control Outdoor Fogger is an eco-friendly pest control spray that is safe to use around children and pets. The Cutter brand is known for its quality products, and this bug spray is no exception.

It is made with organic ingredients, and it effectively kills flies, mosquitoes, ticks, and fleas. It also repels pests such as ants and spiders.

The Cutter Backyard Bug Control Outdoor Fogger is easy to use; simply attached it to your hose and spray it around your yard. You can also use it indoors, but be sure to open windows and doors to ventilate the area.

 Zappers – ASPECTEK 20W Electronic Indoor Insect Killer

ASPECTEK Powerful 20W Electronic Insect Indoor Zapper, Bug Zapper, Fly Zapper, Mosquito Killer-Indoor Use Including 2 Pack Replacement Bulbs
  • Powerful: Killer lamp attracts mosquitoes, flies, moths, no-see-ums, gnats and other flying insects into the electric fly killer using two UV light...
  • Safe: A mesh screen protects you and your family, preventing accidental contact with the electrical grid.
  • Chemical-Free: Insects are attracted and easily killed by the high voltage metal grids, keeping your home free of chemical sprays. Great for food...

Zappers are electric devices that radiate a wavelength of light to attract flies and insects. When the insect gets near enough, it receives an electric shock and dies. Dead insects are collected on a removable surface to be discarded.

This Amazon’s choice fly zapper comes with 2 packs of replacement bulbs and doesn’t consume a ton of energy to do the job. This device is meant for indoor use only. There are larger and sturdier versions that can be used outdoors.

Klahaite Replacement Bulb for K15, X3,T6, T8, T9 Bug Zapper Outdoor, 4-pin, 15W Single U-Shaped Twin Tube Bulb
  • This replacement bulb fits K15, X3,T6, T8, T9 bug zapper, please measure and confirm the bulb size of the original bug zapper before purchasing
  • This 15W UV lamp which emit 365nm wavelength blue light, attracts flying insects to the device
  • To ensure that bug zappers are effective in attracting flying insects, the bulbs should be replaced every season for for maximum effectiveness.

What About Bug Zappers? Electric Swatters?

fly zapper

When it comes to fly killers, there are a number of options available. Some people prefer to use light emitting electric swatters, which kill flies on contact by harshly zapping them with an electric current.

Others opt for more traditional bug zappers, which kill flies with a powerful shock. Which option is right for you will depend on several factors, including how many flies you need to kill, where you need to kill them, and your overall budget.

Traditional bug zappers are made from harmful chemicals that can pose a danger to your kids, pets, and plants. These toxic sprays also have a strong odor that can be unpleasant to smell.

In general, electric swatters tend to be non toxic, portable, and easy to use, making them a good choice for smaller spaces like kitchens and patios.

best fly repellent spray

On the other hand, bug zappers are often larger and more powerful than electric swatters, making them ideal for dealing with large quantities of flies or those that are particularly hardy.

So if you’re looking to create a no-fly zone in your home or yard, it’s important to carefully consider all of your options when choosing a fly killer. Ultimately, the best choice will depend on your individual needs and preferences!

Also Why Not Check Out:

Trappify Fly Traps

Trappify fly traps are a great way to get rid of pesky flies and other insects in your home or yard. These innovative, scientifically-designed traps use smart technology to attract and capture insects, helping you to enjoy cleaner, more pest-free spaces.

Trappify Sticky Gnat Traps for House Indoor - Yellow Fruit Fly Traps for Indoors/Outdoor Plant - Insect Catcher White Flies, Mosquitos, Fungus Gnat Trap, Flying Insects - Disposable Glue Trapper (25)
  • PEST CONTROL: Our Gnat Trap Dual-Sided Sticky Bug Cards are the ultimate pest control solution for catching mosquitoes, leafminers, aphids, and other...
  • EASY TO USE: The Fly sticky trap makes pest control easy with its simple design and effective trapping mechanism. Whether you're dealing with gnats,...
  • ORGANIC GARDENING: Provides a safe and effective way to eliminate small pests like fruit flies and gnats using safe/gentle ingredients. These yellow...

Trappify fly traps work by attracting flies and other insects with baits that are naturally attractive to different types of bugs. Once an insect is drawn in by the bait, it will land on a stick-like trap surface that uses suction power to trap the insect and prevent it from escaping.

Whether you’re looking to keep your home free from flies and other bugs or simply want a clever new way to automate pest control outside, Trappify fly traps are the perfect choice!

Wrap Up: Fly Killer Spray

Flies and mosquitoes are super annoying. This is why we shared with you what is the best insect killer spray and what alternatives there are. Because we know that family safety is your number one priority, we made sure to look for safety as well as efficiency in our reviews.

If you are not enthusiastic about using chemical pesticides around your house and children, we hear you. We offered three different alternatives to fly sprays that can be used safely without having to spread chemicals all over your place.

yard spray for flies

While you can use a flyswatter to keep flies away, you can also try other methods. One of these methods is to spray fly repellent on windows, doors, screened-in porches, and other areas where flies might be getting in. This will create a barrier that deters the pests from entering your home.

Additionally, you can spray repellent on countertops in the kitchen and bathroom, or on garbage cans or other areas that tend to attract flies. If you have an indoor compost bin, be sure to also spray this area, as improperly built piles can attract flies.

We hope that you can now enjoy a fly-free summer experience full of adventure with the best fly killer. CLICK HERE to browse our selection of non-toxic pest control options!

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