Description
Dr Hydro Spider Mite Protection Spray 500ml Concentrate is a targeted miticide that we have been supplying to UK indoor growers since 2017 to tackle one of the most persistent and damaging pests in any grow room — the two-spotted spider mite (Tetranychus urticae). Spider mites thrive in warm, dry conditions and can devastate a crop in days if left unchecked. This concentrate provides fast knockdown of mites across all life stages while remaining safe for use on a wide range of cultivated species when applied according to instructions.
Why Spider Mites Are So Destructive — and How This Spray Helps
Spider mites pierce individual plant cells to extract contents, producing characteristic yellow stippling on upper leaf surfaces and fine webbing on heavily infested plants. A single female can lay up to 200 eggs in her lifetime, and populations can double every 3–5 days under warm grow-room conditions. Dr Hydro Spider Mite Spray disrupts mite development at egg, nymph and adult stages through contact action. The concentrated formula ensures a cost-effective treatment per litre of working solution, and the spreading agent in the formulation penetrates into leaf axils and webbing where mites shelter. We recommend beginning treatment at the first sign of stippling rather than waiting for visible webbing.
Application Rates, Timing and Rotation Strategy
Dilute at the recommended rate (typically 5–10 ml per litre) and apply as a fine, even spray covering all leaf surfaces thoroughly, with emphasis on undersides. Apply in lights-off or low-light periods. Repeat every 4–6 days for at least three treatment cycles to break the reproductive cycle. Avoid applying in late flowering unless absolutely necessary. To prevent resistance — which spider mites develop rapidly — rotate Dr Hydro Spider Mite Spray with Dr Hydro Thrips Protection Spray or introduce predatory mites such as Phytoseiulus persimilis as part of a broader IPM strategy. Always wear appropriate PPE when handling concentrates.
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