How to fight a spider mite at home? - briefly
Apply non‑chemical tactics—regularly spray foliage with water, prune heavily infested leaves, and release predatory mites such as Phytoseiulus persimilis; if infestation persists, use neem oil or insecticidal soap according to label directions.
How to fight a spider mite at home? - in detail
Spider mites are tiny arachnids that feed on plant sap, causing stippled leaves, yellowing, and webbing. Early detection relies on inspecting the undersides of foliage with a magnifying glass; the presence of fine silk threads confirms infestation.
Preventive actions include isolating new plants, regularly cleaning pots, and maintaining adequate air circulation. Reducing plant stress by providing balanced watering and fertilization limits mite reproduction.
Physical removal methods consist of washing leaves with a strong jet of water to dislodge adults and eggs. A damp cloth can be used to wipe visible webs, followed by discarding the debris to prevent re‑colonization.
Chemical controls are limited to substances approved for indoor use. Recommended options are:
- Insecticidal soap applied at 1 % concentration, sprayed until runoff, repeated every 5–7 days.
- Neem oil diluted according to label instructions, covering both leaf surfaces, with reapplication after rain or watering.
- Horticultural oil (e.g., mineral oil) used similarly to neem, effective against all life stages.
Biological agents provide a sustainable alternative. Commercially available predatory mites such as Phytoseiulus persimilis can be released onto affected plants; they consume spider mites and reproduce within the environment, reducing population over several weeks.
Environmental manipulation suppresses mite development. Maintaining relative humidity above 60 % hampers egg viability, while temperatures below 20 °C slow life cycles. Installing a humidifier or misting system, combined with occasional cooling, creates unfavorable conditions for the pest.
A comprehensive approach—combining sanitation, targeted sprays, biological introductions, and climate control—eliminates spider mite colonies and prevents recurrence. Regular monitoring ensures early intervention before damage escalates.