The Tick and Mosquito Project


Mosquito Backpack Foggers

Backpack Mosquito Foggers: When You Are Serious About Mosquito Control

Backpack mosquito foggers offer a heavy-duty and effective solution to reduce mosquito populations in outdoor areas. You may have assume they were just for commercial uses, but I know several homeowners and hobby farm owners who own their backpack foggers for residential use.

Equipped with powerful engines and precision application systems, backpack mosquito foggers are designed to cover large areas with ease. They emit a fine mist of insecticide that works by targeting and eliminating mosquitoes and other flying insects breeding in and around the treated area. The portable and ergonomic design of these foggers allows for greater mobility, enabling users to access even the most hard-to-reach places with minimum effort.

You want to be sure you can use the fogger safely, and that you know what you are doing. Always do your homework, read the manual, and use safety precautions.  With that, here is a primer on backpack mosquito foggers.

Backpack Mosquito Fogger: Types and Features

A backpack mosquito fogger is a portable, motorized fogger designed to spray insecticides and pesticides in outdoor areas where you need better bug control. There are two types of foggers to know about: thermal foggers and cold foggers.

Thermal Foggers

Thermal foggers operate by heating a mixture of insecticide and water or oil to create a fog or mist, and they typically use gasoline or propane as a fuel source.

  • High-temperature fogging: Thermal foggers produce a dense fog that can penetrate hard-to-reach areas, effectively targeting insects in their hiding spots.
  • Coverage: As the thermal fog can drift easily and has a longer range, it is capable of covering a larger area.
  • Fuel efficiency: Most thermal foggers can run on basic fuels like gasoline or propane, making them economical to operate.

In my experience, some drawbacks of thermal foggers are:

  • Safety concerns: Users must exercise caution, as the fogging process involves high temperatures and flammable fuels.
  • Potential residue: Thermal fogging may leave oil or petroleum-based residues in the treated area.

Cold Foggers

Cold foggers, also known as ULV (Ultra Low Volume) foggers, utilize electric power to distribute the insecticide in the form of a fine mist. Their features include:

  • Low-temperature fogging: Cold foggers do not rely on heat, reducing the risk of fire hazards and burns.
  • Adjustable droplet size: Users can adjust the droplet size of the mist, thereby allowing precise control over the dispersion pattern and application rate.
  • Versatility: Cold foggers are suitable for both indoor and outdoor use, as well as for various applications, such as disinfection and odor control.

In my experience, there are some limitations to cold foggers:

  • Limited range: Due to the lower dispersion rate compared to thermal foggers, cold foggers don’t cover as much ground.
  • Electricity requirement: Cold foggers need access to an electrical outlet, which may limit their usability in locations that aren’t equipped with convenient power.

Both thermal and cold backpack mosquito foggers have advantage in different situations. While thermal foggers excel in performance, coverage, and true portability, cold foggers offer safety and versatility.

How Backpack Mosquito Foggers Work

Backpack mosquito foggers use a combination of insecticides and thermal fogging technology to effectively disperse a fine mist that targets mosquitoes and other bugs you are trying to mosquito fogger

At the core of a backpack mosquito fogger is a powerful engine, which pumps insecticide solution from a tank into a heating chamber. As the insecticide enters the chamber, it is rapidly heated and vaporized into fine droplets or fog. The fan within the fogger then pushes the hot fog out, creating a dense cloud that covers a wide area.

The mist produced by the fogger carries the active ingredients – typically pyrethroids, which are synthetic chemicals derived from natural pyrethrin compounds found in chrysanthemum flowers. Pyrethroids are effective insecticides that attack the nervous systems of mosquitoes and other insects, causing paralysis and death upon contact. Since the droplets are tiny, they easily penetrate into hiding spots and can remain suspended in the air for a considerable amount of time, increasing the chances of contact with mosquitoes.

Note: The chemicals emitted by backpack foggers are NOT pollinator-friendly. Please take that into account as you are identifying places to treat.

Backpack mosquito foggers are designed to be portable and easy to use, helping you get an even distribution of the insecticide fog across large areas. They often feature adjustable settings, allowing users to control the density and flow rate of the fog according to their needs. In addition, the engines in these foggers are built to be low-noise and fuel-efficient, providing a comfortable and less disruptive experience for the user.

Of course, any time you are working with mechanical equipment and pesticides or insecticides, safety is paramount. Be sure you are trained on how to use the particular device, and that you take precautions to avoid incorrect exposure to the chemicals. Of course, read the manual (you would be shocked how many people don’t!)

Best Mosquito Backpack Foggers

There are three mosquito backpack foggers that we really like, from two different brands.

Tomahawk 3hp Fogger

The Tomahawk 3hp Fogger is a powerful and reliable backpack fogger that is easy to use for a homeowner. Its 3hp engine delivers a powerful mist capable offogger mosquito home depot covering large areas quickly. I have had good luck with the fogger’s mechanics and durability.  A few things I like about it in particular are:

  • Easy-start mechanism for smooth operation
  • Adjustable nozzle for precise spray control
  • Large chemical tank for extensive coverage

The Tomahawk 3hp Fogger offers a very good balance of power, performance, and usability, making it an ideal choice for homeowners who want to take mosquito control into their own hands.

While perhaps not quite powerful enough for industrial or commercial use, it is the least-expensive alternative that we recommend so perhaps a good way to get started with more heavy-duty mosquito control.

Find here.

Stihl SR 200

Stihl makes two foggers I recommend, one built for lite duty and another for commercial-grade work.  The Stihl SR 200 is the lite-duty one. It is a lightweight andbackpack mosquito fogger versatile backpack fogger designed for controlling mosquitoes in smaller areas. Its compact size and ergonomic design make it easy to maneuver through tight spaces. This fogger uses a fuel-efficient engine to ensure minimal emissions and longer run times.

  • Low weight and compact design for easy transportation
  • Fuel-efficient engine for lower operating costs
  • Excellent spray range for optimal coverage

The SR 200 is perfect for home use and smaller areas, where its maneuverability and efficient operation provide an effective solution for mosquito control.

The downside is that if you are really trying to cover a lot of ground, let’s say you are a landlord spraying a bunch of properties regularly, then this might prove to be a bit small for the job.

Find here.

Stihl SR 450

For more demanding applications, the Stihl SR 450 is a heavy-duty backpack fogger built to handle larger areas and tougher conditions. Its high-capacity chemicalbackpack fogger mosquito tank and powerful engine allow it to cover vast terrains with ease.  It is industrial-grade, and suited for commercial use. I could see pest control experts using this one.

  • High-capacity chemical tank for extended coverage
  • Robust engine for superior performance
  • Enhanced user comfort with ergonomic design

The Stihl SR 450 is an excellent choice for larger property owners, landlords, or professionals who need a rugged and reliable backpack fogger that can handle the challenges of large-scale mosquito control.

The downside is that it will be overkill for backyard landscapers. You could save money and get something smaller like the 200.

Find here.

Advantages of Using Backpack Mosquito Foggers

Why use a backpack fogger instead of alternatives like a mosquito misting system or other yard mosquito repellents?

Wide Coverage Area

Backpack mosquito foggers provide a wide coverage area, making them ideal for use in large spaces such as parks, gardens, and farmland. These foggers can cover significant ground, ensuring the effective control of mosquitoes and other flying insects. The powerful engines and adjustable nozzles allow users to easily disperse the insecticide, covering more space in less time.

Efficient Results

These foggers deliver fast, efficient results by utilizing a fine mist to distribute the insecticide evenly throughout the treated area. The mist penetrates hard-to-reach areas where mosquitoes tend to hide and breed, such as bushes, foliage, and tall grass. Backpack foggers also use thermal fogging technology, which produces smaller droplets that stay airborne for longer, providing better coverage and increasing the likelihood of the insecticide coming into contact with the target insects.

Reduced Cost and Time

Using backpack mosquito foggers can save both time and money in the long run. Unlike traditional methods of mosquito control, such as manual spraying, foggers can cover large areas quickly and with less effort. This means fewer labor hours and reduced expenditure on additional staff or equipment. The efficient use of insecticides in backpack foggers also means that less product is required, cutting down on costs.

Furthermore, the backpack design allows for ease of use and mobility, ensuring that users can navigate through difficult terrain or crowded spaces while treating the area, ultimately reducing the time spent on mosquito control efforts.

Safety Considerations and Guidelines for Use

Read the manual, and know how to use your backpack fogger. These are serious machines that could hurt you in two ways: First, from the machine itself, and second, from the chemical you are emitting.

Use Protective Gear

  • Safety goggles: to protect your eyes from accidental chemical splashes or mist.mosquito chemical protective gear
  • Respirator mask: to avoid inhaling chemical fumes or particles.
  • Gloves: to shield your hands from direct contact with the chemicals
  • Long sleeves and pants: to protect your skin from potential irritants or burns.

Always remove and wash your clothing promptly after using.

Proper Usage

Ensure you read and follow the manufacturer’s instructions carefully before using the backpack mosquito fogger. Here are some general guidelines to consider:

  1. Filling the tank: Fill the tank only up to the designated limit, avoiding overfilling, as it might cause spills and leaks.
  2. Choosing the right chemical: Use only approved and suitable chemicals for fogging. Mixing incompatible or low-quality chemicals can lead to equipment damage or ineffective results.
  3. Adjusting the nozzle: Set the nozzle of the fogger according to the manufacturer’s recommendations for optimal application and droplet size.
  4. Applying fog: Start fogging either in the early morning or late evening when mosquitoes are most active. Create a slow and consistent movement while applying the fog, ensuring an even distribution.


Maintaining the backpack mosquito fogger guarantees an extended lifespan, and optimal performance. Follow these maintenance tips:

  • Inspect regularly: Check the fogger for damages, leaks, or any malfunctioning components before each use.
  • Clean the components: After each use, clean the major components of the fogger, such as the nozzle, tank, and hoses, as per the manufacturer’s instructions.
  • Schedule routine servicing: Perform routine maintenance of the fogger as suggested by the manufacturer. This may include changing filters, replacing worn-out parts, and lubricating moving parts.
  • Store properly: Store the fogger in a cool, dry place and protect it from extreme temperature variations when it’s not in use.  One thing people often forget is to empty it out prior to storing.  Be sure it is dry, both the tank and the nozzle, before storing.  You might not use it again for months, and those chemicals can gum-up the machine making it harder to use the next time.

Selecting the Right Backpack Mosquito Fogger

Trying to choose the right fogger?  Besides looking at the 3 we recommended up above, here are a few things to look at with your next fogger.

Power Source

When choosing a backpack mosquito fogger, it is important to consider the power source. Backpack foggers are typically powered by either gas or electricity. Gas-powered foggers tend to be more powerful and offer longer run times, making them ideal for large areas. However, they can be noisy and require more maintenance than electric models. Electric foggers, on the other hand, are quieter and more environmentally friendly but may have shorter run times and limited power.

Tank Capacity

Another factor to consider is the tank capacity. Larger tanks can hold more insecticide, allowing you to cover a greater area without having to stop and refill.backpack mosquito fogger However, a bigger tank also means added weight, which could affect user comfort during extended use. It may be helpful to compare the tank capacities of different models and consider the size of the area you need to treat in order to make an informed decision.


Of course, everyone has a different budget. It goes without saying, but get the best fogger you can afford for your budget. Don’t be duped into spending $1,000 on a machine you might only use once a summer.


Finally, consider the brand of the backpack mosquito fogger. Well-known brands tend to have a reputation for producing reliable, high-quality products. Research different manufacturers to learn about their reputation and customer reviews. Choosing a reputable brand can give you peace of mind that you are investing in a reliable and efficient product.

The brands I chose up above are ones I have no problem standing behind.

Frequently Asked Questions

What kind of solution should be used in a backpack mosquito fogger?

It is crucial to use a solution specifically designed for mosquito control in backpack foggers. These solutions often contain insecticides like pyrethroids or malathion. Always follow the manufacturer’s recommendations regarding the appropriate solution for the specific fogger, as well as the correct mixing ratios.

How often should one use a backpack mosquito fogger for optimal results?

The frequency of using a backpack mosquito fogger depends on several factors, such as the severity of the mosquito infestation and the area being treated.  The time of the year makes a big difference, too, on the mosquito lifecycle, because mosquitoes have “hatches” and you want to control them more around the time of a big hatch.

In general, fogging should be done once every two to four weeks during peak mosquito season for optimal results. However, it may be necessary to adjust the frequency based on the specific situation and the advice of a pest control professional.

How can you maintain and clean a backpack mosquito fogger?

Proper maintenance and cleaning of a backpack mosquito fogger ensure its longevity and effective performance. Follow these steps for regular maintenance:

  1. Rinse the tank with clean water after each use to remove any residue. Refrain from using harsh cleaning agents, as they may damage the fogger.
  2. Inspect the hoses, connections, and seals regularly for wear and tear. Replace any damaged parts as needed.
  3. Check the filter and clean it periodically to ensure optimal airflow.
  4. Store the fogger in a cool, dry location when not in use to protect it from damage due to temperature fluctuations and moisture.

Leave a Comment