What Do Spider Mites Look Like on Cannabis Plants?

What do spider mites look like on cannabis plants? These pests are tiny, but they can cause big problems for your crop. Keep an eye out for signs of infestation and learn how to get rid of spider mites for good.

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Cannabis plants are susceptible to infestations from various types of spider mites. These tiny pests are barely visible to the naked eye, but can cause serious damage to your plants. To properly identify and treat an infestation, it’s important to know what spider mites look like on cannabis plants.

Spider mites are small, spiders that feed on the chlorophyll in plants. The most common type of spider mite is the two-spotted spider mite (Tetranychus urticae), which is characterized by its two dark spots on its body. However, there are many different types of spider mites that can infest cannabis plants, each with their own unique appearance.

Spider mites are difficult to spot with the naked eye, but there are several telltale signs of an infestation. The first sign of spider mites is usually webbing on the leaves of the plant. The webbing is produced by the female spider mites and is used to protect their eggs. If you see webbing on your plant, it’s a good indication that there are spider mites present.

Another sign of spider mites is yellow or brown spots on the leaves of the plant. These spots are called stippling and occur when the spider mites suck the chlorophyll out of the leaves. Stippling is usually more prevalent on the underside of leaves, as that’s where spider mites tend to congregate.

If you suspect your plant has a spider mite infestation, it’s important to take action immediately. Spider mites reproduce rapidly and can quickly cause extensive damage to your plant. To get rid of spider mites, start by treating your plant with a pesticide designed specifically for killing these pests. Be sure to follow all directions carefully and apply the pesticide evenly over all affected areas of the plant.

You can also try using a method called “washing” to get rid of spider mites. To wash your plant, simply remove it from its pot or grow space and place it in a sink or tub filled with lukewarm water and mild soap or dish detergent. Gently swish your plant around in the water for several minutes, then rinse it off thoroughly with clean water. This method won’t kill all of the spider mites, but it will remove many of them from your plant.

Once you’ve treated your plant for spider mites, take steps to prevent future infestations. Start by maintaining a clean grow space and keeping an eye out for any signs of pests such as webs or stippling leaves. Be sure to quarantine any new plants before adding them to your grow space, and inspect them carefully for signs of pests before allowing them into your garden

What do spider mites look like?

Spider mites are tiny little creatures that can wreak havoc on your cannabis plants. These pests are difficult to spot with the naked eye, but there are telltale signs of their presence. If you see small, spider-like creatures on your plants, chances are you have spider mites.


Spider mites are very small, only about the size of a period at the end of this sentence. But if you look closely, you can see that they have a round body and eight legs. You might also see two dark spots on their bodies, which are their eyes. Females are usually a little bit larger than males.


Nymphs are baby spider mites that look like tiny adults. They’re usually red or yellow, but they can also be green, brown, or translucent. Nymphs go through several molts (shedding their skin) before reaching adulthood. They mature quickly and can start laying eggs within a week.


Spider mites lay their eggs on the undersides of leaves, and they hatch within a week. The eggs are oval-shaped and yellow or white. You might not be able to see them with the naked eye, but you can use a magnifying glass to take a closer look.

Why are spider mites harmful to cannabis plants?

Spider mites are one of the most common pests that affect cannabis plants. These tiny creatures feed on the sap of the plant, which can cause leaves to turn yellow or brown and eventually drop off. Spider mites can also spread diseases from plant to plant. Left unchecked, a spider mite infestation can completely destroy a cannabis crop.

How can you get rid of spider mites?

Spider mites are tiny, spider-like creatures that can be found on cannabis plants. They are usually red, brown, or black and range in size from 1/50 to 1/5 of an inch. Spider mites are harmful to plants because they suck the plant’s juices, which can cause the plant to become stunted, discolored, and eventually die. While spider mites are difficult to see with the naked eye, there are a few telltale signs that your plant has them.

Physical removal

The best way to get rid of spider mites is to physically remove them from your plants. Use a magnifying glass to inspect your plants carefully, and look for any small spider-like insects or webbing. If you see any, you can gently remove them with a cotton swab or a soft brush. You can also try using a gentle stream of water from a garden hose to dislodge them from your plants.

Biological control

Biological control is the use of living organisms to manage pests. For spider mites, this usually means introducing predators that will eat the mites. The most common predators used are ladybugs, lacewings, and predatory mites.

There are a few different ways to introduce predators to your grow room or garden. You can purchase them online or from a garden center, release them into your grow room or garden, or allow them to come in naturally.

Purchasing Predators
You can purchase ladybugs, lacewings, and predatory mites online or from a garden center. Be sure to release them as soon as possible after purchase. Ladybugs and lacewings only live for a few weeks, so you will need to re-release them every few weeks to keep the population up. Predatory mites can live for several months and will reproduce on their own, so you won’t need to re-release them as often.

Releasing Predators
To release ladybugs or lacewings, simply open the container and let them fly out into your grow room or garden. For predatory mites, place the container in your grow room or garden and gently tap it so that the mites fall out onto the leaves of your plants. Be sure to check the label of your product to find out how many predators you should release per plant.

Allowing Predators to Come In Naturally
You can also allow ladybugs, lacewings, and predatory mites to come in naturally by keeping your grow room or garden clean and free of pesticides. These predators are attracted to gardens that have a lot of aphids, spider mites, and other small insects for them to eat.

Chemical control

The most common and effective method of chemical control for spider mites is to use a miticide, or spider mite pesticide. There are many different kinds of miticides on the market, but they can broadly be split into two groups: synthetic and natural. Synthetic pesticides are generally more effective at killing spider mites, but they can also be more harmful to the environment. Natural pesticides are generally less toxic and easier on the environment, but they may not be as effective at killing spider mites. Whichever kind of spider mite pesticide you choose, make sure to follow the instructions on the label carefully.

Some common synthetic pesticides for spider mites include abamectin, bifenazate, and dicofol. Some common natural pesticides for spider mites include neem oil, horticultural oil, and insecticidal soap.


To recap, spider mites are tiny insects that can cause big problems for your cannabis plants. They are difficult to see with the naked eye, but you can look for signs of them such as white spots or webbing on the leaves. If you think you have spider mites, it’s important to take action quickly to get rid of them before they do serious damage to your plants.

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