How to Get Rid of Red Spider Mites Organically

Co-authored by Katie Gohmann

Last Updated: April 27, 2024 Approved

Spider mites are tiny, sap-sucking pests that can be quite difficult to destroy. Mites cling to the bottom of leaves on many plants, sucking the nutrients out of the leaves, sometimes causing the leaves to dry out and die. Once you've identified an infestation on your plants, spider mites can be destroyed through natural methods, as long as management of the plant is upheld.

Part 1

Part 1 of 3:

Identifying Spider Mites

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Spider mites are attracted to many plants, including indoor and outdoor, with some of those being strawberries, melons, beans, tomatoes, eggplant, pea pods, ornamental flowers, trees, and most houseplants. ^{[1]
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2
Recognize the signs. When checking for spider mites, you'll be able to identify plants they have infested by the state of the plant. Spider mites suck the sap from the plant, which causes damage to its leaves. Some noticeable signs of spider mites are:
- Yellow, tan, or white spots on the leaves
- Very small white or red spots on the leaves that move (these are the spider mites)
- White, cottony webbing that appears on the underside of the leaves
- Eventually leaves may curl up after changing color and fall off
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3
Check for spider mites. Before you begin treating spider mites, it's good to be familiar with what they look like and the harm they cause. If you are unable to see them on the leaf, hold the stem of your plant over white paper and gently shake, causing the spider mites to fall on the paper. ^{[2]
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- Spider mites are very small, so they can be difficult to see, but with a magnifying glass you will be able to make out a small body with eight legs, and a red, brown, yellow, or green coloring.
- Spider mites are most common in hot, dry and dusty conditions and most prevalent in places where they have no predators, such as plants that have been treated with insecticide. ^{[3]
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Part 2

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Treating Spider Mites

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Before taking any steps to remove spider mites, you'll want to remove the infected plants to an area without any other plants. This will prevent the spider mites from spreading and harming your other plants.
2
Prune the plant. After removing the infected plant to an isolated area, begin pruning the plant, removing any stems, leaves, or other infested parts of the plant and throw in the trash. Make sure to remove until all webbing is gone. Unfortunately, you may have to remove entire plants to prevent mites from spreading to other plants if the plant is overly infested. ^{[4]
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- Make sure to throw leaves directly in a trash bag so they won't spread. Throwing them in your compost pile will allow spider mites to escape to your other plants.
3
Spray the plant with water. Using a high pressure water hose or nozzle, spray plant generously. This will dislodge spider mites from the plant and kill some of them, reducing the number of spider mites on your plant. If treating an indoor plant, use a wet sponge or take it outdoors to spray. ^{[5]
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- This treatment typically has to be repeated in order to effectively remove spider mites.
4
Introduce natural predators. This is a great step, because allowing natural predators to inhabit your plant will keep spider mite population to a minimum, if not dissolving it completely, and you won't have to worry about spider mites continually infecting your plants. You can purchase these predators from reputable nurseries. ^{[6]
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- Ladybugs, lacewing, and predatory mites are the best predators for spider mites
- The best time to release predators is when spider mite levels are relatively low. You'll also want to make sure the predators you purchase are appropriate for the plant you'll be placing them on and for the season in which you'll be using them. ^{[7]
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5
Create a soap spray. Soap sprays are a common, natural way to kill spider mites. Combine two tablespoons of gentle soap, one to two tablespoons of cooking oil, and a gallon of water. Spray plants thoroughly, repeating every four to seven days until spider mites appear gone.
- Gentle soap, such as baby shampoo, may be better because heavier soaps like dish detergent can damage plants. However, you can use a harsher soap as long as you test it on a small area of the plant first, making sure the solution doesn't burn the leaves.
- Cooking oil will smother the insects and help the solution stick to the leaves.
- Be careful not to spray solution on plants when you notice beneficial insects as this will harm them as well, and avoid spraying when the sun is directly on the leaves as it will likely dry up the solution. ^{[8]
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6
Use hot pepper spray. This solution is a common way to control mites and other pests. Combine one teaspoon cayenne pepper or hot sauce, one quart of warm water, and a few drops of liquid dish detergent. Let the solution sit overnight and then sift it through a fine strainer. Spray on the bottom of leaves, keeping it away from your face, and shaking frequently to prevent ingredients from settling. ^{[9]
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- Always test solution on a small portion of the plant to make sure it doesn't harm the leaves.
- To make an even stronger solution, add minced onion and garlic.
7
Spray plant with an oil solution. Many essential oils can help kill and prevent spider mites. These solutions are beneficial because they will not harm the plant itself, and have natural properties that react with the spider mite, often killing it. Mix a solution of these oils in a one liter bottle, filling half of it with lukewarm water and then adding 10 to 20 milliliters (0.34 to 0.68 fl oz) of essential oil. Some oils you might use are: ^{[10]
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- - Neem oil
  - Eucalyptus oil
  - Lemon oil
  - Cinnamon oil
  - Peppermint oil
  - Rosemary oil
  - Chrysanthemum oil
  - Thyme oil
- For oils with a gentle smell, use higher concentrations, and those with a stronger smell, use lower concentrations.
- Never pour essential oils directly onto plant without diluting them first as this will likely damage the plant.
8
Know the benefits of organic treatment. By using chemical pesticides, you can often kill the insects that prey on spider mites, making it easier for spider mites to grow and populate on your plants. Spider mites have also been known to develop quick resistance to some pesticides, so it's best to control spider mites with natural methods. ^{[11]
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- Female spider mites can produce up to 300 eggs continuously over a few weeks. If some eggs are unable to be killed by pesticides, the mite problem may only get worse.

Part 3

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Preventing Future Spider Mites

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Plants that are stressed are more vulnerable to spider mites. Make sure plants are adequately watered, are in healthy soil, and receive optimal light. ^{[12]
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Periodically dust the leaves and branches of your plant, as this will help prevent spider mites. In dry, dusty areas spider mites are thirstier and so they will cause more damage to your plant if you provide that environment for them. ^{[13]
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3
Watch for eggs. Just targeting spider mites with one treatment is likely not going to get rid of them completely. During warm weather seasons, eggs are laid continuously, and so management and repetition of treatments is vital to keep spider mite population to a minimum or nonexistent. Do frequent water sprays on your plant, as well as pruning leaves if you notice any eggs (small white specks on the underside of leaves) or mites. ^{[14]
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- It may also be beneficial to keep the plant in an area where air can circulate freely.

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Do I need to get rid of all my soil?

Katie Gohmann
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Katherine Gohmann is a Professional Gardener in Texas. She has been a home gardener and professional gardener since 2008.

Katie Gohmann

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Expert Answer

No. Spider mites feed on leaves and hang out on leaves and stems. It might be a good idea to update your soil with some compost or fertilizer to strengthen your plant, though.

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What do mites look like?

Katie Gohmann
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Katherine Gohmann is a Professional Gardener in Texas. She has been a home gardener and professional gardener since 2008.

Katie Gohmann

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They look like a tick, with a squat body and eight legs. They are a type of arachnid.

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Do clover mites bite? (tiny red spiders)

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They do not bite or cause health-related problems, but clover mites can still be a nuisance. If smashed when they crawl over carpets and drapery, the mites leave a red stain. Clover mites can be red, green or brown, and have front legs that are about twice as long as their other legs.

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Warnings

Only move to more toxic solutions or pesticides if your spider mite population is out of control and organic methods don't seem to work.

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When using sprays, always make sure the spray will not harm the type of plant you are treating. Different plants will react differently to solutions so always check a small patch of the plant and try to remove as many mites as you can through pruning and spraying with water.

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Things You'll Need

Water hose
Disposable gloves to wear when wiping leaves
Spray bottle
Essential oils
Dish detergent or mild soap
Trash bags

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How to Get Rid of Red Spider Mites Organically

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Identifying Spider Mites

Treating Spider Mites

Preventing Future Spider Mites

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