Indoor plants: spider mite – what to do at home? - briefly
Remove heavily infested foliage, wash remaining leaves with a vigorous water spray, and apply a neem‑oil or insecticidal soap solution at the recommended concentration, repeating every 5–7 days. Maintain moderate humidity and keep the plant away from drafty windows to discourage mite reproduction.
Indoor plants: spider mite – what to do at home? - in detail
Spider mites are tiny arachnids that thrive on the undersides of foliage, feeding on plant sap and causing stippling, yellowing, and webbing. Their rapid reproduction can turn a minor problem into a severe infestation within weeks, especially in dry indoor environments.
The first step in control is accurate identification. Examine leaves with a magnifying lens; adult mites appear as speckled dots, while eggs are tiny, oval, and often clustered near leaf veins. Early detection prevents extensive damage.
Environmental adjustments reduce mite vigor. Increase ambient humidity to 60 % or higher by misting plants daily, using a pebble tray, or running a humidifier. Lower temperatures to 65–70 °F (18–21 °C) slow reproduction. Avoid placing plants near heating vents or radiators that create dry air pockets.
Physical removal complements cultural changes. Wipe leaves with a soft, damp cloth or cotton swab soaked in water to dislodge mites and eggs. For heavily affected specimens, a gentle jet of water from a hose or showerhead can wash populations off without harming the plant.
Chemical and organic treatments provide direct mortality. Recommended options include:
- Insecticidal soap: Apply a fine mist covering both upper and lower leaf surfaces; repeat every 5–7 days until no mites are observed.
- Neem oil: Dilute according to label instructions; treat foliage in the early morning or late evening to avoid leaf scorch.
- Horticultural oil: Use a lightweight oil formulation; ensure thorough coverage of leaf undersides and repeat after 10 days.
When using any spray, verify plant tolerance by testing on a small leaf area first. Avoid excessive runoff that could cause root rot.
Biological control is viable for indoor settings. Introduce predatory mites such as Phytoseiulus persimilis or Neoseiulus californicus; these agents consume spider mites and their eggs. Maintain a temperature above 70 °F (21 °C) and provide a pollen source to sustain predator populations.
Monitoring continues after treatment. Inspect plants weekly for new signs of activity. Maintain humidity and cleanliness to prevent recurrence. Remove and destroy severely damaged foliage to eliminate breeding sites.
In summary, effective management combines early detection, humidity elevation, mechanical removal, targeted sprays, and optional biological agents. Consistent vigilance ensures indoor greenery remains healthy and mite‑free.