How to get rid of greenhouse mites? - briefly
Implement strict sanitation, remove infested plant material, and introduce predatory insects such as «Phytoseiulus persimilis». Apply «horticultural oil» or sulfur sprays only when monitoring indicates mite populations exceed economic thresholds.
How to get rid of greenhouse mites? - in detail
Greenhouse mite infestations develop rapidly under warm, humid conditions; early detection prevents severe crop damage. Regular inspection of foliage, especially the undersides of leaves, reveals the presence of tiny, moving specks that may appear as fine webbing or discoloration. Sticky traps placed at canopy level provide quantitative data on population trends.
Cultural practices reduce habitat suitability. Maintain optimal temperature and ventilation to discourage mite reproduction. Remove plant debris and weeds that can harbor pests. Implement crop rotation with non‑host species for at least one growth cycle. Adjust irrigation schedules to avoid excess leaf wetness, which favors mite colonies.
Physical barriers limit mite entry. Install fine mesh screens on vents and doors; mesh size should not exceed 0.5 mm. Apply horticultural oil or water‑based soap sprays to foliage, ensuring thorough coverage of leaf undersides. Re‑apply after rainfall or when new growth appears.
Chemical options include acaricides registered for protected environments. Select products with distinct modes of action to mitigate resistance development. Follow label‑specified pre‑harvest intervals and adhere to recommended dosage rates. Rotate between contact and systemic formulations when multiple applications are necessary.
Biological agents offer sustainable suppression. Predatory mites such as Phytoseiulus persimilis, Neoseiulus californicus, and Amblyseius swirskii consume large numbers of pest mites. Introduce these agents when mite numbers exceed economic thresholds, and provide a pollen or yeast supplement to sustain predator populations. Preserve existing natural enemies by minimizing broad‑spectrum pesticide use.
Integrating these tactics forms an effective management program. Monitor pest levels continuously, adjust cultural conditions, employ physical exclusion, apply targeted chemicals only when needed, and support biological control agents. This coordinated approach maintains low mite populations while protecting plant health and product quality.