How should permethrin 25 be diluted for ticks? - briefly
Combine 1 ml of the 25 % permethrin concentrate with 49 ml of water (a 1:49 ratio) to achieve a 0.5 % solution suitable for tick control, and mix thoroughly before use.
How should permethrin 25 be diluted for ticks? - in detail
A 25 % permethrin concentrate contains 250 mg of active ingredient per milliliter. For tick control on clothing, gear, or pets, the target concentration is typically 0.5 % (5 mg/ml). Achieve this by mixing one part concentrate with 49 parts water.
Dilution steps
- Measure 20 ml of the 25 % solution.
- Add the measured concentrate to a clean container.
- Fill the container with 980 ml of distilled or de‑ionized water, stirring gently to ensure uniform distribution.
- Transfer the mixture to a spray bottle or applicator.
Application guidelines
- Apply the diluted spray evenly to the outer surface of clothing, boots, and backpacks; allow it to air‑dry completely before use.
- For pets, use a separate dilution of 0.2 % (2 mg/ml). Mix 8 ml of concentrate with 992 ml of water, apply to the animal’s coat, avoiding eyes and mucous membranes.
- Re‑treat after each wash or after 5–7 days of outdoor exposure.
Safety precautions
- Wear gloves and eye protection while handling the concentrate.
- Store the undiluted product in a locked, temperature‑controlled area away from children and food.
- Do not ingest; seek medical attention if accidental exposure occurs.
Following these precise measurements yields an effective tick‑repellent solution while minimizing toxicity risks.