Growing Marijuana Indoors: Keep insects at bay with cannabis fogger

Last Updated on May 15, 2022 by Gary Stephen


OMG!! Insects – the creature any grower dreads for! 

Of course, they are still part of mother nature and so they do have some sort of purpose in the ecosystem too. But, we must admit that sometimes they are exactly not that helpful to be around. 

Especially in our indoor gardens, pests can create a lot of trouble for our cannabis plants. If not managed immediately, it can impede its growth and affect its general health.

All plants are susceptible to this infestation. And, our precious marijuana is no exemption.

Fret not though buddy! 

There are still effective ways to control the situation. One of which is through the use of insect foggers.

In this article, we will present to you our top 5 picks for the best insect foggers. These products are already proven and tested by novice and seasoned cannabis growers. So, sit back and just read on!

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Overall top pick:

General Hydroponics AzaMax

First runner-up:

Doktor Doom Total Release Fogger

Second runner-up:

PyGanic Gardening Pyrethrin Concentrate

PreviewProductsBest ForAvailability
General Hydroponics AzaMaxOverall performance Check Price
Doktor Doom Total Release FoggerAerosol fogger Check Price
PyGanic Gardening Pyrethrin Concentrate Pyrethrin bomb Check Price
Central Coast Garden Products Green CleanerOrganic pesticide Check Price
BASF Beethoven TR Total Release Miticide/InsecticideLarge grow spaces Check Price

Best Insect Fogger for Marijuana, or Cannabis

1. General Hydroponics AzaMax | Cannabis Fogger

Best Insect Foggers for Marijuana

General Hydroponics AzaMax is a natural 3-in-1 horticultural product. It is an insecticide, miticide, and nematicide all at the same time. 

This solution is being derived from Neemzal, the purest form of Azadirachtin. From the name itself, it is from the extracts of neem seed kernel processed via a patented technology.

AzaMax is a broad-spectrum solution. It can target a wide range of insects and pests. This includes the common spider mites, thrips, mealy bugs, fungus gnats, and nematodes to name a few. 

The good thing about AzaMax is its multi-action approach to controlling infestations. Thus, making it more bio-effective even in different stages of growth and development. 

AzaMax is an antifeedant type of solution. Meaning, it works by inhibiting the feeding behavior of the bugs.  In that way, it destroys the unwanted critters by starving them to death. To further add damage, it also disrupts its growth process. Thus, preventing them to mature, all the more, multiply. 

Another advantage of AzaMax is its UV and storage stability. With such, its efficacy is least likely to degrade despite UV and thermal exposures. This feature can well last for up to 2 years.

AzaMax is good for both indoor and outdoor cultivars. This is suitable to apply on ornamental flowers, veggies, fruit-bearing trees, shrubs, and cannabis too. 

Don’t worry! 

This pesticide has a food-grade formulation. In fact, OMRI approved this product for use in organic gardening. So, rest assured there is no harm in ingesting crops treated with AzaMax

Moreover, it is not only it is safe for humans. But, it is also safe enough to use around your pets and the environment too.

Things to concern:

Some customers were quite disappointed with its packaging. In their reports, they had experienced a leaky bottle. The bottle’s cap is not creating a tight seal thus ending up spilling a good amount of product.

Magic Line:

Organic and guaranteed safe pest control.


  • Natural insecticide, miticide, and nematicide
  • Made from Neemzal
  • Active Ingredients: Azadirachtin A & B
  • Broad-spectrum
  • Antifeedant and insect growth regulator
  • Food-grade formulation
  • UV and shelf stability up to 2 years
  • Targets mites, nematodes, and soil-borne insects and pests
  • OMRI certification
  • Suitable for IPM & IRM programs
  • Available in 4-ounce, 16-ounce, 1-quart, and 1-gallon sizes


2. Doktor Doom Total Release Fogger | Cannabis Fogger

Doktor Doom Total Release Cannabis Fogger

Doktor Doom Total Release Fogger is already a household name in indoor gardening.

This aerosol spray is for domestic fumigation and extermination of insects and pests. This includes spider mites, thrips, aphids, whiteflies, scales, mealy bugs, and fungus gnats. 

The main active ingredient in this solution is Pyrethrin. It is being derived from natural ingredients. Thus, safe to use on fruits, vegetables, ornamental plants, and as well as cannabis.

Pyrethrin works by targeting the nervous system of unwelcomed bugs. In effect, it paralyzes and leads them to its eventual death. It is a contact-type of pesticide. So for it to be effective, there should be a direct application to the area of infestation. 

By nature, though, pyrethrin breaks down pretty fast. So, you don’t have to worry about leaving residue, odor, or smell.

Doktor Doom is also a cost-effective product. That is because you can use it across all the stages of plant growth. In fact, you can still apply this even a day before your harvest. 

Things to concern:

Doktor Doom contains low concentrations of pyrethrin. It has only about 0.4% in comparison to the full 4% of its leading competitor.  Some may find that significant difference a bummer. 

Although it is good to note as well that pyrethrin can also cause damage to the buds and leaves of cannabis. So, it is wiser to start with low concentration first than jump right through the hardcore ones. This gives you better control without risking the welfare of your cultivars.

Magic Line:

Great for all stages of growth.


  • Natural insecticide
  • Active Ingredients: Pyrethrin
  • Ideal for indoor use
  • Safe for edible crops
  • Targets spider mites, thrips, aphids, whiteflies, scales, mealy bugs, and fungus gnats 
  • Degrades in a matter of few hours
  • No residue
  • Contains no CFC
  • Available in 3-ounce & 12.5-ounce cans


3. PyGanic Gardening Pyrethrin Concentrate | Cannabis Fogger

PyGanic Gardening Pyrethrin Concentrate cannabis fogger

PyGanic Gardening is the perfect choice if you wish to go a bit bolder with your Pyrethrin dosage. This concentrate contains 1.4% of the main active ingredient. That is more than three times stronger than the Doktor Doom TR Fogger. 

This botanically-derived insecticide came from the floral plant, daisy chrysanthemums. It is even included in the OMRI list of approved pest controls for organic gardening. PyGanic is compliant with USDA’s requirements for the National Organic Program or NOP.

This certification provides consumers the proof of its safety. Withal, you can assure it is safe to use on edible crops, fruit trees, ornamental flowers, and even cannabis.  

Furthermore, it is also suitable to apply on all the stages of plant growth. This makes it more cost-efficient to use since you no longer need to switch products. 

Pyrethrin is also known for its ability to breakdown fast under sunlight. Because of that, it allows you then to apply on crops even up to the same day of harvest.

PyGanic targets to control common pests that are sabotaging the health of cultivars. This includes aphids, whiteflies, mites, gnats, thrips, beetles, and caterpillars among a hundred others. The solution helps to flash and kill stubborn pests and mites even those in hiding.

Pyrethrin is a contact-type of insecticide. Thus, it is best applied directly to the area of infestation. The key to success here is to ensure that there is good coverage. Sprayers and fogging machines work well for this purpose. 

Things to concern:

As mentioned earlier, Pyrethrin has the tendency to damage your plants. With stronger formulation, make sure to follow the recommended ratio of dilution. Use it sparingly and only when necessary. 

Magic Lines:

Potent yet still natural.


  • Organic 
  • Active Ingredients: Pyrethrin
  • Derived from daisy chrysanthemum
  • Kills more than 100 types of damaging insects and pests
  • OMRI certified
  • Compliant with NOP
  • Safe for ornamental plants, fruits, vegetables, fruit and nut trees
  • Available in 8-ounce


4. Central Coast Garden Products Green Cleaner | Cannabis Fogger

Central Coast Garden Products Green Cleaner

Green Cleaner is an all-natural insecticide, miticide, and fungicide. It makes use of soybean oil and SLS along with some citric acid, isopropyl alcohol, and water.

That’s it!

Sounds like something you can mix straight up from your pantry, right?

This can be suitable to apply on most types of plants from clone to harvest. Because it can be used in all stages, you don’t have to worry about spending more money on another product.

Green Cleaner targets to kill different mites such as broad, russet, and spider mites. Not only will it exterminate the adult mites, but it will also destroy its eggs. Thus, ensuring there will be no chances of recurrence.

Aside from mites, it can also kill whiteflies, thrips, and other soft-bodied insects. It is also effective in treating powdery mildew since it has fungicidal properties.

This broad-spectrum insecticide works in multi-action. It first suffocates and immobilizes the pest by coating it with the soybean oil. Once respiration gets restricted, the citric acid and alcohol now work its magic. Its purpose is to dehydrate and to kill insects.

Another highlight of Green Cleaner is its ability to counter product resistance. That means spider mites will least likely develop immunity from the product. So, it will continue to remain effective even after long years of repeated use. 

Green Cleaner is a contact-type of insecticide. Thus, you have to make sure to spray with good amounts of coverage. Persistence in the application is also a key factor in its success. You may fog the infested area for a couple of days straight to ensure everything is well covered. 

Things to concern:

The effectiveness of the Green Cleaner is foolproof. Heads-up though, you should use this with extra caution. The formula is so potent that it might cause damage to your cultivars as well.

Magic Lines:

Simple formula but effective.


  • Insecticide, miticide, fungicide
  • Contact pesticide
  • Active Ingredients: 39% Soybean oil & 9% Sodium Lauryl Sulfate
  • 100% concentrate
  • Suitable on most types of horticulture
  • Can be used on all stages of growth
  • Kills mites, whiteflies, thrips, powdery mildew, all soft-bodied insects
  • Prevents product resistance
  • Kills both adult pests and its eggs
  • Available in 2, 4, 8, 32-ounces, 1, 2.5 and 55-gallon drum


5. BASF Beethoven TR Total Release Miticide/Insecticide | Cannabis Fogger

BASF Beethoven TR Total Release Miticide/Insecticide cannabis fogger

Beethoven TR is a miticide and insecticide in an aerosol form. It contains a very potent active ingredient, Etoxazole. It works by disrupting the chitin synthesis of the pest. Thus, inhibiting its growth and its troublesome infestation in your garden.

It has a specific target to kill mites including the dreaded two-spotted mites. Moreover, it also acts by suppressing the occurrence of whiteflies.

Beethoven TR is well known for its good coverage. A single canister can cover up to 3,000 square footage of grow space. This is also ideal to use for indoor gardens or greenhouses.

This solution though is being meant for use in rotation with other types of insecticides. This includes Pyrethrum TR, Attain TR, 1300 Orthene TR, and Duraplex. Doing so will lead you to better management of your pest control measures. 

Things to concern:

Beethoven TR contains 5% Etoxazole. This chemical has a long residual activity of up to 45 days. So, make sure to avoid the application when the cannabis already reaches the harvesting stage. 

Magic Line:

Effective and good coverage.


  • Insecticide and miticide
  • Active Ingredients: Etoxazole
  • Targets mites and whiteflies
  • Can cover up to 3,000 sqft
  • Used in rotation with other total release pesticides
  • Available in 2-ounce canister


Tips on Proper Cannabis Insect Fogger Application

Here are some tips to help you get the most out of your insect foggers.

  • Compatibility and side effects

Some pesticides, whether chemical or natural-based, may have a potential for side effects. Aside from the prevention and treatment of pests, it should be safe enough for your cannabis too. Otherwise, you may end up killing not just the pests but the plant as well.

  • Spray test

Testing can help you determine the compatibility of your cannabis with the pesticide. This is especially true for products you never had tried yet before. To do the testing, prepare a small batch first. Isolate the test plants and then spray on a small discreet area. Observe for reactions in a few days or so. 

  • Use a pH neutral water

Some pesticides may render ineffective if diluted in too acidic or alkaline water. Thus, a pH between 6 to 7 is most ideal to use. In as much as possible opt for purified water for mixing to be safe.

  • Coverage

Whether be it a contact pesticide or not, coverage still remains to be one of the most important keys to success. Always ensure to give the area a good amount of product. Make use of equipment such as garden sprayers and foggers.

  • Proper storage

Pesticides in wettable powder and liquid concentrate forms need to have proper storage.  Storing your pesticides in a cool, dry, and well-ventilated place keeps it from going bad. It also avoids cross-contamination of chemicals and other elements.

Wrapping-up about Cannabis Fogger

As much as we love to tend to our cannabis, it can be a lot of hassle to deal with pesky infestations. Then again, we would not want to sacrifice the health of our cultivars. Thus, providing it with the right kind of insect fogger will help manage the issue. Not only will it treat the existing problem, but it would also prevent further occurrence. 

The top 5 products we enclosed here are some of the market’s best selling insect foggers. There are well-loved by both newbies and seasoned cannabis growers. So, make sure to check them out too!

Gary Stephen
Gary Stephen

Hi, I am Gary Stephen. I have been gardening for a long time. Gardening gives us much benefits and pleasure. Many of us desire to have a garden, but it cannot fulfill the desire for the proper guide or instruction of gardening. So, I am eager to help them. For this purpose, I have developed the website to make a garden with the proper guide. So, you will get me beside you if you want to know anything about gardening.