Spider Mites - 4 Ways To Naturally Get Rid Of Them

Introduction

Spider mites, particularly the Two-Spotted Spider Mite, can wreak havoc on indoor plants. This tutorial presents four natural methods for treating a severe spider mite infestation and two preventive measures to keep your plants safe in the future. With these strategies, you can effectively protect your indoor crops without resorting to harmful chemicals.

Step 1: Use Homemade Insecticidal Soap

Creating an insecticidal soap is a simple and effective way to combat spider mites.

• Ingredients:

  • 1 liter of water
  • 1 tablespoon of natural, perfume-free hand soap
  • 1 tablespoon of vegetable oil (acts as a spreader/sticker)

• Instructions:

  1. Mix the water, soap, and vegetable oil in a spray bottle.
  2. Spray the mixture on all foliage, focusing on the undersides of leaves where spider mites typically reside.
  3. Repeat every three days for up to three weeks.
  4. If you notice any negative reactions on the leaves, rinse them with clear water between applications.

• Tip: This method suffocates adult and sub-adult mites but does not kill the eggs, which is why repeated applications are necessary.

Step 2: Apply Rubbing Alcohol

Rubbing alcohol is another effective treatment for spider mites.

• Materials Needed:

  • 50% isopropyl rubbing alcohol (diluted to 25% strength)

• Instructions:

  1. Dilute the rubbing alcohol to 25% if starting from a higher concentration.
  2. Spray the diluted alcohol on all plant leaves, especially the undersides.
  3. Repeat every three days for about two to three weeks.
  4. Rinse the leaves with water if you observe any signs of damage.

• Tip: This method also kills mites on contact but may leave the eggs unharmed, necessitating further treatments.

Step 3: Use Diatomaceous Earth

Diatomaceous earth can be a powerful ally against spider mites.

• Instructions:

  1. Dust the affected plants, including the topsoil, with diatomaceous earth while wearing a mask or respirator.
  2. Ensure the diatomaceous earth remains dry for it to work effectively.
  3. Apply this treatment two times, ideally after the initial soap treatment.

• Tip: This method works by physically damaging the mites and drawing moisture from them but does not kill the eggs.

Step 4: Introduce Natural Predators

Biological control can help manage spider mite populations.

• Beneficial Insects:

  • Ladybugs: One ladybug can eat up to 100 spider mites a day.
  • Predatory mites (e.g., Phytoseiulus persimilis): Highly effective against spider mites.

• Instructions:

  1. Release ladybugs or predatory mites into your growing area.
  2. Ensure that the initial spider mite population is somewhat controlled before introducing these predators.

• Tip: Although effective, this method can be costly and may feel counterintuitive, so consider it after trying the other treatments.

Step 5: Create a Preventive Environment

Reduction of spider mite infestations can often be achieved by altering the growing environment.

• Increase Air Circulation:

  • Use a fan to circulate air around your plants daily; spider mites thrive in still air.

• Regularly Mist Plants:

  • Mist your plants with plain water a couple of times a week to create a humid environment that spider mites dislike.

• Tip: Both increased airflow and misting mimic natural outdoor conditions, making it less favorable for spider mites.

Conclusion

By following these steps, you can effectively treat and prevent spider mite infestations naturally. Regular application of homemade solutions, the introduction of natural predators, and environmental adjustments can keep your indoor plants healthy and thriving. Stay vigilant and proactive to protect your plants from future outbreaks. If you have unique methods that have worked for you, consider sharing them with your gardening community!