Broad Mites & Cannabis - How to Identify & Get Rid of It Quickly! (2023)

Broad Mites & Cannabis - How to Identify & Get Rid of It Quickly! (1)

by Nebula Haze

Broad miteson your cannabis plants are so tiny they are practically impossible to spot with the naked eye, and can even be difficult to see under a microscope.

Broad Mite Symptoms:

  • Bugs are so small they are difficult to see without magnification
  • Under a microscope, you can see that they have 6 legs when young, and 8 legs as adults
  • Symptoms are often confused for heat stress, overwatering, a pH imbalance, or root problems
  • New growth may be twisted or drooping
  • Leaves may be, blistered or “wet” looking
  • Leaves may be turned up at the edges
  • Broad mites don’t attack all parts of the plant evenly; symptoms are worse in certain spots where the infestation is concentrated
  • In the flowering stage, buds may become sickly and die

With broad mites, thenew growth may be twisted,blistered and “wet” looking. If your plant is flowering the buds may turn brown and die. These broad mite damagepics were takenbyHosttrevor(thank you!).

Sometimes one of the main symptoms is the newest growth is coming in twisted

Edges may turn up as if the plant is suffering from heat stress, but with broad the leaves take on a glossy, almost plastic-like appearance. Eventually affected leaves turn yellow or bronze and die.

The main way to spot an infestation is the damage they leave behind because usually the mites themselves are too small to see. They like to hang out inside inside your plants, where they can live and lay eggs without you seeing them.

Sometimes the symptoms can be confused for tobacco mosaic virus. Leaf symptoms from broad mites arealso commonly misdiagnosed as overwatering, a nutrient deficiency or heat damage.

One of the biggest reasons broad mites can be so difficult to diagnose is you rarely see any signs of bugs, and you don’t see bites on the leaves. For many people, they don’t even realize a bug infestation is happening.

(Video) How to Detect and Fight Russet Mites on Cannabis Plants

Sometimes top leaves droop. In this pic you can see that part of the droopy leaves are getting that blistered, wet appearance from broad mites.

The followingmarijuana plant has been treated for broad mites and is starting to recover. You can see the newest growth looks matte and healthy, while the damaged leaves from before still look glossy and blistered.

It’s great if your plant is starting to look healthy again, but even if your plant appears to be recovering, don’t stop on weekly treatments for at least a few weeks. The broad mitescould still be there waiting to take over the plant again! They are the masters of hiding and waiting.

Unfortunately, broad mites are probably one of the hardest marijuana pests to get rid of. They lay their eggsinsidethe plant which makes it very difficult to kill their eggs!

Solution: How to Get Rid of Broad Mites On Cannabis

Once you’ve actually identified that you have broad mites, it’s time to get rid of them! When it comes to broad mites, a lot of the “standard” miticides are not as effective and you’ll notice these particular mitesaren’t listed on the labels.

Broad mites can be one of the toughest marijuana pests to get rid of, but it can be done if you stay vigilant.

  • Immediately and carefully remove infected parts of the plant – if there’s already an infestation in the tissue, you likely won’t be able to save those particular leaves/buds. Your main goal is to stop the infestation from spreading.
  • Treat often – You may have to treat several times a week or even daily if you have a terrible infestation that won’t go away. This can be very difficult on your plants.
  • Spray Before Lights Go Out – Whenever treating plants with a spray, do it before the lights go off so that your plant is less likely to get burned.
  • Read Instructions – Make sure to read the fullinstructions of each bottle and follow them when treating your plants. You will save yourself a lot of big headaches.
  • Repeat treatments weeklyfor 5 more weeks after mites are gone –After you think broad mites are completely gone, don’tstop. Treat your plant with a different treatment at least once a week for 5 additional weeks. If you don’tcompletely eradicate them they’ll come back with a vengeance and can be even more resistant to whatever you throw at them.

Here’s a Detailed Step-by-Step:

1.)Dispose of known infected plant matter

The parts of the plant that are already infested should be carefully removed and discarded of if possible. This will dramatically reduce the bug numbers, and help save the rest of your plant.

(Video) Identifying and Controlling Broad Mites

2.)Neem Oil

Neem Oilwill leave an unpleasant taste/smell on buds when used to treat flowering plants, so don’t let this stuff get near your buds. There’s also some evidence Neem oil may beharmful to humansso use with care. That being said, Neem oil is an all-natural remedy that is very effective against many different types of bugs and mold, including broad mites.

Neem oil can be rough on your plants so you don’t want to use it more often than you have to because your plants maysuffer. However, if you get desperate treating plants daily with Neem oil can be effective at killing broad mites when nothing seems to be working.

You will need amister(also called a “One-Hand Pressure Sprayer”)to spray all the leaves evenly since neem oil and water can separate easily. A mister helps you get full and even coverage on all parts of the plant.

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3.) Essentria IC3

Essentria IC3 Insecticideis a mix of various horticultural oils that is organic and safe for humans. It is often marketed as a “bed bug killer” but it can be effective against broad mites when the plants are treated regularly. Unfortunately, it only stays effective on the plant for about 8 hours so you will want to either apply this daily or combine with other options. Foolow the directions carefully. You will need amister(also called a “One-Hand Pressure Sprayer”)to spray all the leaves evenly.

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4.) Insecticidal soaps

Fatty acid salts or insecticidal soaps can help against broad mites.They weaken the outer shell of broad mites but are safe to use on your plants and they don’t leave much of a residue which could kill beneficial bugs in your garden.

With soaps, just like horticultural oils, coverage is very important as it does not stay on your plant for long, sofollow-up applicationsmay be necessary. Although this is considered safe, avoid getting anyon your buds because it can affect the taste or small.

This probably won’t get rid of broad mites on its own, but it is less harsh on your plants than some of the other options and so it can be a great way to supplement the other treatments you’re doing by bringing down their numbers.

(Video) How to Identify and Control Hemp Russet Mites on Cannabis Plants

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5.) Avid

Avidmiticide is strong stuff with harsh chemicals and isincredibly expensive, but it can sometimes do the job when nothing else is working. This is a systemic insecticide, which means it works by infiltrating the inside of plant tissue and killing bugs that way. Because of that, it should NOT be used in the flowering stage (you don’t want this stuffinside your buds). However, many growers report that this is the only thing that consistently works for them.Always use Avidas directed and only as a last resort. You will need amister(also called a “One-Hand Pressure Sprayer”)to spray all the leaves evenly.

Don’t use this product more than once or twice in a row or your mites may become resistant. This should stay in your plant’s system for several weeks so this is only really suitable for young plants.If you’re going to be using systemic insecticides, switch back and forth between this and another one like Forbid.Make sure to follow the instructions.

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6.) Forbid

Forbidmiticide is sort of like Avid in that it is made of strong stuff with harsh chemicalsand is alsoexpensive.This is a systemic insecticide, which means it works by infiltrating the inside of plant tissue and killing bugs that way.Because of that it should only be used several weeks before the beginning of the flowering stage (you don’t want this stuffinside your buds and it can stay in the plant for weeks). However, many growers report that this can be the only thing that consistently works for them.Always use Forbid as directed and only as a last resort!. You will need amister(also called a “One-Hand Pressure Sprayer”)to spray all the leaves evenly.

Don’t use this product more than once or twice in a row or your mites may become resistant. This should stay in your plant’s system for several weeks.If you’re going to be using systemic insecticides, switch back and forth between this and another one like Avid. Make sure to follow the instructions.

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7.) Diatomaceous Earth

Diatomaceous Earth is basically fossil dust that can be sprinkled on the top of your soil, and anywhere else in your room (window sills, doorways, etc). This powder-like substance is harmless to mammals and plants but is incredibly sharp at the microscopic level. Therefore it will tear and dehydrate broad mites on physical contact. This will not get rid of an infestation but can help prevent, control, and slow things down when used effectively. When it comes to broad mites, you want to use every tool you can.

Broad Mites & Cannabis - How to Identify & Get Rid of It Quickly! (18)

(Video) How to get rid of broad mites with diatomaceous earth

8.) Heat

Broad mites don’t like the heat above 90°F (32°C). Some growers will try to get rid of them by on small plants or clones by dunking the plants in hot water (105°F / 40°C) for 10-20minutes. I’ve also heard of growers try to reduce their numberby overheating the grow space to 115°F (46°C) for an hour. Be careful asthis can be dangerous if you don’t take safety precautions, and any heat method strong enough to kill the mites will likely hurt your plants.

9.) Predatory Mites

Some types of predatory mites, likeNeoseiulus type mites, love to eat broad mites. Supplementing your garden with extra predators can help bring down broad mite numbers. However, it’snot enoughto fix the problem on their own and unfortunately, a lot of the other remedies on this page will also kill predatory mites.

If you don’t want to use pesticides, or want some extra help, get predatory mites to help eat all your broad mites.

Broad Mites & Cannabis - How to Identify & Get Rid of It Quickly! (19)

10.) AgroMagen

I’m not personally familiar with this product but I’ve heard it’s effective against broad mites. Given how tough this pest can be to get rid of, I wanted to make sure I included every possible option. From what I understand you will need to spray more than once and this is best combined with at least one other treatment.

AgroMagen claims to be effective against broad mites

Broad Mites & Cannabis - How to Identify & Get Rid of It Quickly! (20)


How do you identify a broad mite? ›

Identifying Broad Mites

Adult broad mites are roughly 0.25 mm in length, with a dark green to amber coloration, a shiny appearance, and an oval shape. Their thickness is like a piece of paper or a human hair. This pest has four different stages, eggs, larva, nymphs and male and female adults.

How do you get rid of broad mites? ›

Translaminar systemic miticides are the preferred methods of broad mite control. The miticides, which have translaminar activity, penetrate the leaf and move within the tissue from top to bottom. Foliar spray options include Avid, Kontos, Pylon, Savate and Sirocco.

How do you get rid of broad mites naturally? ›

Broad mites do not like the heat. Some growers will try to get rid of them by on small plants or clones by dunking the plants in hot water (105°F / 40°C) for 10-20 minutes. Some growers try to reduce their numbers by overheating their grow space to 115°F (46°F) for an hour.

What temperature kills broad mites? ›

Broad mites are very sensitive to heat. If you suspect broad mites on your potted plants, first remove the infected leaves. Then, submerge your plant, including their pots, in hot water (110 degrees F water) for 30 minutes. This temperature should be hot enough to kill the mites but not hot enough to harm the plants.

How do you confirm mites? ›

Common signs of a mite bite
  1. red, rash-like marks on your skin.
  2. small bumps that can become hard or inflamed.
  3. irritation, itching, and pain near the mark, rash, or bump.
  4. swollen or blistered skin near the bite.
31 Jul 2019

How long do broad mites live? ›

Broad mites have a short and rapid lifecycle living between 5 and 13 days. An unmated female will lay male eggs only, but after mating, she will lay about 4 female eggs for every male egg.

What kills mites and their eggs? ›

Permethrin kills the scabies mite and eggs. Permethrin is the drug of choice for the treatment of scabies. Two (or more) applications, each about a week apart, may be necessary to eliminate all mites.

Is there a home remedy to get rid of mites? ›

Wash all sheets, blankets, pillowcases and bedcovers in hot water that is at least 130 F (54.4 C) to kill dust mites and remove allergens. If bedding can't be washed hot, put the items in the dryer for at least 15 minutes at a temperature above 130 F (54.4 C) to kill the mites.

Does vinegar get rid of mites? ›

Vinegar is highly acidic and will kill just about any mite that crosses its path.

What smell kills mites? ›

Essential oils contain compounds that repel or kill insects, including dust mites. The best essential oils for getting rid of dust mites are clove, rosemary, and eucalyptus oil.

What natural ingredient kills mites? ›

Use neem oil.

This horticultural oil acts as a natural pesticide but isn't toxic to pets, humans, or other animals. This natural extract suffocates spider mites, quickly killing them. Mix a tablespoon with water in a bottle, shake it up, and spray over the affected foliage.

Can plants recover from broad mites? ›

According to Bogash, unlike spider mite damage, plants attacked by broad mites may not recover and often are permanently stunted. The challenge in minimizing damage is due to the extreme difficulty in scouting for them.

Do broad mites move fast? ›

Broad and Cyclamen mites can move quickly, and are exceedingly small: about 200 micrometers in length, or about the thickness of a human hair or sheet of paper. Not only can these mites be hard to find, their plant damage can be difficult to diagnose. Broad and cyclamen mites only feed on young, developing leaf tissue.

What insects eat broad mites? ›

Neoseiulus (synonym Amblyseius) cucumeris is a predatory mite that preys on broad mites, as well as, other mites, whiteflies, thrips, aphids, and psyllids.

What are mites attracted to? ›

Mites are attracted to carbon dioxide (a product of breathing) and heat, and use these to locate hosts. Mites cannot jump or fly and must crawl. Mites are usually found in rooms such as kitchens, family rooms, bedrooms, and work areas that contain the highest concentrations of carbon dioxide.

What does a mite mite look like? ›

These microscopic arthropods are estimated to be only 1/4 to 1/3 millimeters long. You can only see them under a microscope, and even then, they only look like small white spider-like creatures. Males dust mites can live over a month, while female dust mites can live up to 90 days.

What causes mites to appear? ›

The scabies mite usually is spread by direct, prolonged, skin-to-skin contact with a person who has scabies. Scabies is found worldwide and affects people of all races and social classes. Scabies can spread rapidly under crowded conditions where close body and skin contact is frequent.

Can broad mites spread? ›

Broad mites can spread among greenhouse-grown crops via air currents, leaves of adjacent plants contacting each other, and by workers handling infested plant material and then touching non-infested plants.

How long does it take to get rid of mites? ›

Treatment can get rid of the mites, eliminate symptoms such as itch, and treat an infection that has developed. For the first few days to a week, the rash and itch can worsen during treatment. Within four weeks, your skin should heal. If your skin has not healed within 4 weeks, you may still have mites.

Where do broad mites lay eggs? ›

Female broad mites (Polyphagotarsonemus latus) lay their eggs mainly on the underside of the leaf or on the fruit surface. The elongated, oval eggs are firmly attached to the surface and are rather large (about 0.07 mm) compared with the subsequent, active stages. They are transparent and speckled with white dots.

What instantly kills mites? ›

Ivermectin (Stromectol).

Although these drugs kill the mites quickly, itching may not stop for many weeks. Health care providers may prescribe other skin care treatments for people who don't get relief from or can't use these drugs.

Does baking soda get rid of mites? ›

Does Baking Soda Kill Dust Mites? Baking soda is highly effective at removing moisture and deodorizing, but it won't kill dust mites. It can, however, make the area unsuitable for dust mites by soaking up any moisture.

What is the best killer for mites? ›

Top 7 Best Spider Mite Killers
  • 1500 Live Ladybugs.
  • Grower's Ally Spider Mite Control.
  • Neem Oil.
  • Diatomaceous Earth.
  • Doktor Doom Spider Mite Knockout.
  • Floramite SC.
  • Safer Brand Insect Killing Soap.

What Herb kills mites? ›

Not only are they good for pest control, but specific herbs can also be effective in warding off lice and mites as well. Mint, lemon balm, and lavender are great plants to have growing around your chicken coop or run to deter a great many different types of pests, lice, and mites.

Can you wash away mites? ›

Conclusions: Washing clothing and bedding in cold or warm water with detergent or detergent plus bleach removed most allergen and a significant (P <. 05) portion of live mites. Repeated washing is required to further reduce mite levels.

Does hydrogen peroxide get rid of mites? ›

Not many people realize that they can use simple hydrogen peroxide as non toxic spider mites killer. If you have to spray a lot of plants or if you experience frequent infestations, you can buy concentrated peroxide and dilute it to the desired strength.

What disinfectant kills mites? ›

Luckily, Lysol can kill up to 99% of dust mites.

Does rubbing alcohol get rid of mites? ›

Rubbing alcohol dehydrates and kills spider mites. Mix 1 part rubbing alcohol to 4 parts water in a bowl and use a clean cloth to rub the leaves of your plant with the mixture. You can also put this mixture in a spray bottle and spray the leaves. Repeat daily until the mites are dead.

How do you make homemade mite killer? ›

Rosemary is a natural insecticide and using a concoction of rosemary oil and water will take care of your spider mite infestation. With a 2:1 ratio of water to rosemary oil, spray the oil spray onto the leaves of the plant to serve as a natural spider mite killer.

How do you make homemade miticide? ›

To make a basic oil spray insecticide, mix one cup of vegetable oil with one tablespoon of soap (cover and shake thoroughly), and then when ready to apply, add two teaspoons of the oil spray mix with one quart of water, shake thoroughly, and spray directly on the surfaces of the plants which are being affected by the ...

How fast do mites multiply? ›

A female house dust mite may lay 1 to 3 eggs a day. After 6 to 12 days the egg will hatch producing a six-legged larva which will feed then pass through 2 nymphal stages before emerging as an adult to join the colony. Like many animals a growing mite will shed its temporary outer shell-like covering.

Do harvest mites jump? ›

During late summer up to the first frost, the harvest mite will bite warm blooded mammals, especially dogs and cats. They will jump up onto your dog and find the area of the body where the skin is the thinnest.

Can broad mites survive the cold? ›

Outside in temperate climates, broad mites (Polyphagotarsonemus latus) are not a serious problem, as they are unable to overwinter.

What do broad mite eggs look like? ›

Eggs: The eggs are colorless, translucent and elliptical in shape. They are about 0.08 mm long and are covered with 29 to 37 scattered white tufts on the upper surface (Denmark 1980, Peña and Campbell 2005, Baker 1997). Larvae: Young broad mites have only three pairs of legs.

Are broad mites the same as spider mites? ›

Unlike the more familiar two-spotted spider mite, broad mite (Polyphagotarsonemus latus) belongs to a separate family of “thread-footed” (tarsonemid) mites, which also includes cyclamen mite.

What color are broad mites? ›

They are transparent and speckled with white dots. The larva of the broad mite (Polyphagotarsonemus latus) resembles the adult, but is slightly smaller and has only three pairs of legs.

Is a mite visible to the naked eye? ›

Mite Biology

Mites are not insects; they are more closely related to ticks and spiders. Most mites are visible to the unaided eye and usually measure 18 inch or less in length. Their life cycle has four basic stages: egg, larva, nymph and adult (Figure 1).

Can you see mites with a magnifying glass? ›

Bullous lesions may be observed in immunocompromised patients. Occasionally, the mite is visible to the naked eye as a small white dot, or can be seen with a magnifying glass.

Where do mites like to hide? ›

There may be something hiding in your home. Since they feed on dead skin that people shed (gross, we know, but everyone does it!), you'll find the highest concentrations in high-use areas – carpets, area rugs, pillows, mattresses, and couches are common dust mite hideouts.

What do invisible mites look like? ›

Scabies mites are invisible bugs that look like lint and bite. They burrow into the upper layer of human skin scrapings, where they live and lay their eggs.

How hard are mites to get rid of? ›

While some mites—like the mostly harmless dust mite—are all but impossible to completely eliminate from your home, troublesome biting mites are comparatively easier to treat. Rat mites and bird mites, for example, can often be eradicated simply by removing any small rodents, birds and bird nests from your home.

How do you keep mites from spreading? ›

Steam cleaning or washing items in hot water is a sure-fire way to kill and eliminate mites of all types. Use a steam cleaner to heat treat your carpeting, furniture and bedding. Wash the bed spreads and your clothing and other such fabrics in hot water and dry clean them at a high temperature.

How do you identify and treat spider mites? ›

Telltale signs of spider mite infestation include spotting on the top of the leaves and yellowing around the edges.
  1. To treat a plant for spider mites, the first step is to hose the plant down under the sink or shower faucet, dislodging the bugs. ...
  2. Follow this with an insecticide, such as neem oil.
3 Oct 2019

What do broad mites feed on? ›

In general, broad mites aggregate in groups, feeding primarily on leaf undersides and flowers where females lay eggs. They feed on plant cells within the leaf epidermis using their piercing-sucking mouthparts.


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