How to eliminate spider mites from indoor plants? - briefly
Remove infested leaves, wash the plant with a strong stream of water, and apply insecticidal soap or neem oil to the remaining foliage, repeating the treatment every 5–7 days until mites are gone. Keep humidity elevated and inspect regularly to stop a recurrence.
How to eliminate spider mites from indoor plants? - in detail
Spider mites are tiny arachnids that feed on the sap of foliage, causing stippling, yellowing, and webbing. Early detection prevents severe damage. Inspect leaves regularly, especially the undersides, for tiny moving specks and fine silk.
Identification
- Look for tiny, moving dots (often less than 0.5 mm).
- Notice yellow or bronze spots where tissue is being consumed.
- Observe fine webbing connecting leaves and stems.
Cultural practices
- Keep humidity above 60 % by misting or using a humidifier; mites thrive in dry air.
- Avoid overcrowding; ensure good airflow around each plant.
- Water consistently, but allow soil to dry between watering to prevent stress.
Mechanical removal
- Rinse plants with a strong stream of lukewarm water, focusing on leaf undersides.
- Use a soft brush or cotton swab dipped in soapy water to dislodge mites.
- Repeat washing every 3–4 days until populations decline.
Soap‑based sprays
- Mix 1 teaspoon of mild liquid dish soap with 1 liter of water.
- Apply thoroughly to all leaf surfaces, ensuring runoff.
- Reapply after 5–7 days; avoid use on seedlings or sensitive varieties.
Oil treatments
- Use horticultural oil (e.g., neem or mineral oil) at 1–2 % concentration.
- Spray until leaves are coated but not dripping.
- Oil suffocates mites and their eggs; repeat weekly for three applications.
Biological control
- Introduce predatory insects such as Phytoseiulus persimilis, Amblyseius swirskii, or predatory flies.
- Release rates depend on infestation level; follow supplier guidelines.
- Maintain a pesticide‑free environment to protect beneficial agents.
Chemical options
- Apply acaricides containing abamectin, bifenazate, or spiromesifen when other methods fail.
- Observe label dosage and safety intervals; rotate active ingredients to prevent resistance.
Sanitation
- Remove heavily infested leaves and dispose of them away from the growing area.
- Clean pots, trays, and tools with 70 % isopropyl alcohol after each use.
- Quarantine new acquisitions for at least two weeks before integrating them.
Monitoring
- Use sticky traps near plant bases to gauge predator presence.
- Record mite counts weekly; adjust treatment frequency based on trends.
- Continue preventive measures even after visible mites disappear, as eggs can hatch weeks later.
By combining humidity management, regular washing, targeted sprays, and, when necessary, biological or chemical agents, indoor growers can eradicate spider mite infestations and maintain healthy foliage.