How to remove spider mite from a plant? - briefly
Wash the plant thoroughly with a strong water spray to dislodge mites, then treat the foliage with insecticidal soap or neem oil, repeating every 5‑7 days. Remove heavily infested leaves and maintain low humidity to prevent re‑infestation.
How to remove spider mite from a plant? - in detail
Spider mites are tiny arachnids that feed on plant sap, causing stippling, yellowing, and webbing. Early detection prevents severe damage. Inspect leaves regularly, especially the undersides, for tiny moving dots and fine silk.
Identify infestation:
- Light-colored specks on foliage.
- Fine webbing on leaf veins.
- Presence of moving mites when leaf is disturbed.
Remove mites by combining mechanical, cultural, biological, and chemical tactics.
Mechanical methods
- Rinse plants with a strong jet of water to dislodge mites and webs. Repeat every few days until populations decline.
- Wipe leaves with a soft cloth or cotton swab dipped in soapy water (mild dish soap diluted 1 % in water). Cover both surfaces, then rinse.
Cultural practices
- Increase humidity around the plant; mites thrive in dry conditions. Use a humidifier or mist the foliage several times daily.
- Avoid excessive nitrogen fertilization, which produces tender growth favored by mites.
- Prune heavily infested stems and discard them away from other plants.
Biological controls
- Introduce predatory insects such as Phytoseiulus persimilis, Neoseiulus californicus, or Amblyseius swirskii. Release according to supplier guidelines, ensuring the environment remains pesticide‑free.
- Apply microbial insecticides containing Bacillus thuringiensis var. kurstaki or Beauveria bassiana; follow label rates for foliar spray.
Chemical options
- Use horticultural oil (e.g., neem oil or mineral oil) at 1–2 % concentration. Apply to both leaf sides, covering all surfaces, and repeat every 7–10 days.
- If oil fails, employ a systemic acaricide containing abamectin or spirodiclofen. Observe pre‑harvest intervals and resistance management recommendations.
Post‑treatment monitoring
- Examine leaves three days after each application. Record mite counts to gauge efficacy.
- Maintain a schedule of weekly inspections for at least four weeks, then monthly checks.
Prevent re‑infestation by quarantining new plants, cleaning tools, and keeping the growing area free of debris where mites can hide. Consistent sanitation, proper watering, and balanced nutrition reduce the likelihood of future outbreaks.