How to combat spider mite using garlic?

How to combat spider mite using garlic? - briefly

Blend 2–3 garlic cloves with a quart of water, stir in a teaspoon of mild liquid soap, and let the mixture steep overnight before spraying it on affected leaves. Reapply the spray every 5–7 days, especially after rain, until mite numbers drop.

How to combat spider mite using garlic? - in detail

Garlic extracts act as a natural repellent for spider mites because the sulfur compounds irritate their respiratory system and deter feeding. To create an effective solution, follow these steps:

  • Peel and crush 5–6 cloves of fresh garlic.
  • Blend the pulp with 1 liter of lukewarm water for 5 minutes.
  • Let the mixture steep for 12–24 hours in a sealed container, shaking occasionally.
  • Strain through a fine mesh or cheesecloth, discarding solids.
  • Add 1 teaspoon of mild liquid soap (non‑ionic) to act as an emulsifier, then dilute the filtrate with an additional 2 liters of water.

Apply the spray early in the morning or late afternoon when foliage is dry. Use a fine mist to coat both the upper and lower leaf surfaces, ensuring coverage of the leaf veins where mites congregate. Repeat every 5–7 days, or after rain, until populations decline.

Key considerations for optimal results:

  • Use freshly prepared garlic solution; potency diminishes after 48 hours.
  • Test on a small leaf area before full application to confirm plant tolerance.
  • Avoid excessive soap concentrations, which may cause phytotoxicity.
  • Combine with cultural controls: eliminate weeds, maintain proper plant spacing, and keep humidity levels low to discourage mite reproduction.

For severe infestations, increase application frequency to every 3 days and consider integrating neem oil or horticultural oil, rotating with garlic spray to prevent resistance. Monitoring mite numbers with a handheld magnifier will indicate when treatment can be tapered.

Garlic-based treatments provide a cost‑effective, biodegradable alternative to synthetic acaricides, suitable for organic gardens and indoor cultivations. Proper preparation, consistent application, and complementary cultural practices maximize efficacy against spider mite outbreaks.