How to eliminate spider mites on pelargonium? - briefly
Inspect foliage regularly; at the first sign of spider mite activity, wash the leaves with a strong jet of water and treat with a miticide such as neem oil or a sulfur‑based spray, repeating every 5–7 days until the pests disappear. Increase humidity and avoid excessive fertilization to prevent recurrence.
How to eliminate spider mites on pelargonium? - in detail
Spider mites appear as tiny specks on the undersides of leaves, often leaving fine webbing and stippled foliage. Early detection relies on a hand lens or magnifying glass; look for moving dots and yellowing leaf tissue.
Cultural practices reduce the environment that favors these pests. Keep soil moisture consistent, avoiding prolonged drought, as dry conditions accelerate mite reproduction. Provide adequate ventilation to lower leaf temperature and humidity. Remove heavily infested foliage promptly to prevent spread.
Mechanical tactics involve direct removal. Rinse the plant with a strong jet of water, focusing on leaf undersides, to dislodge mites and webs. For indoor specimens, use a soft brush or cotton swab dipped in soapy water to wipe affected areas.
Chemical options include insecticidal soaps, horticultural oils, and neem‑based products. Apply a 2‑3 % potassium salts of fatty acids solution, ensuring thorough coverage of all leaf surfaces. Repeat applications every 5‑7 days until populations decline, observing the label for maximum contact time and re‑entry intervals. Avoid broad‑spectrum organophosphates, which may harm beneficial insects.
Biological agents offer sustainable control. Introduce predatory mites such as Phytoseiulus persimilis or Neoseiulus californicus at a rate of 1 m² per 500 mL of carrier. Maintain temperatures above 20 °C to support predator activity. Combine predators with mild horticultural oil sprays to enhance efficacy.
Preventive measures reinforce long‑term health. Rotate planting locations annually to disrupt mite life cycles. Use clean, sterilized pots and soil to eliminate hidden infestations. Monitor new plants for at least two weeks before integrating them into the collection. Regularly inspect foliage, especially during warm, dry periods, and act promptly at the first sign of damage.