How to treat houseplants for spider mites? - briefly
Inspect foliage regularly, isolate affected plants, and apply a miticide such as neem oil or insecticidal soap according to label directions. Increase humidity and rinse leaves with water to reduce mite populations.
How to treat houseplants for spider mites? - in detail
Spider mite infestations on indoor foliage require rapid detection and a multi‑step remediation plan.
First, inspect leaves daily, focusing on the undersides where tiny, moving specks indicate activity. Lightly tap stems over white paper; accumulated specks confirm presence.
Second, isolate affected plants to prevent spread. Place them away from healthy specimens and restrict airflow between them.
Third, employ mechanical removal. Rinse foliage with a strong stream of lukewarm water, ensuring thorough coverage of both surfaces. Repeat every 2–3 days for two weeks.
Fourth, apply horticultural oil or neem‑based formulations. Dilute according to manufacturer instructions, then coat leaves until a fine film forms. Reapply weekly while mites persist.
Fifth, use insecticidal soap when oil is unsuitable. Mix the soap at a 2 % concentration, spray until runoff, and repeat every five days.
Sixth, consider synthetic acaricides only as a last resort. Choose products labeled for indoor use, follow label dosage precisely, and monitor plants for phytotoxic reactions.
Seventh, adjust environmental conditions to discourage reproduction. Maintain humidity above 60 % by misting or using a humidifier, and keep temperature between 20 °C and 25 °C. Reduce excess nitrogen fertilization, which accelerates leaf growth and creates favorable conditions for mites.
Eighth, implement preventive measures. Clean pots and trays regularly, prune heavily infested foliage, and introduce natural predators such as predatory mites if compatible with the indoor setting.
Following this systematic approach eliminates spider mites and restores plant health.