How to dilute Solfisan for bedbugs? - briefly
Mix Solfisan concentrate with water at a 1:10 ratio (one part Solfisan to ten parts water) and apply the mixture to infested surfaces using a spray bottle. Keep the solution wet for a minimum of 10 minutes before wiping or vacuuming the area.
How to dilute Solfisan for bedbugs? - in detail
Solfisan, a liquid formulation of permethrin, must be mixed to a precise concentration to achieve effective bed‑bug eradication while minimizing toxicity. The recommended dilution for residential infestations is 0.5 % permethrin by weight, which corresponds to 5 ml of Solfisan per liter of water.
Materials required
- Solfisan concentrate (typically 10 % permethrin)
- Clean container with a lid (minimum 1 L capacity)
- Measuring cup or graduated cylinder
- Stirring rod or mechanical agitator
- Protective gloves, goggles, and mask
- Labels for the mixture
Procedure
- Wear protective equipment before handling the concentrate.
- Measure 5 ml of Solfisan using a calibrated cylinder.
- Pour the measured concentrate into the empty container.
- Add 1 L of cool, preferably de‑ionized water to the container.
- Stir the solution thoroughly until the liquid appears uniformly cloudy; no visible separation should remain.
- Label the container with the dilution ratio, date of preparation, and safety warnings.
- Apply the mixture immediately with a spray device calibrated to deliver 0.5 ml per square foot, covering all suspected harborages—mattress seams, box springs, bed frames, cracks, and baseboard edges.
- Allow the treated surfaces to remain wet for at least 30 minutes before ventilation. Do not rinse; the residual activity persists for several weeks.
Safety considerations
- Store unused concentrate in a locked, child‑proof cabinet.
- Keep the diluted solution away from food preparation areas and open flames.
- Dispose of any leftover mixture according to local hazardous‑waste regulations; do not pour down drains.
Verification
- After treatment, inspect treated zones for live insects over a 7‑day period. Persistent activity may indicate inadequate coverage or resistance; repeat the application following the same dilution if necessary.
Following these steps ensures a consistent 0.5 % permethrin solution, delivering the potency required to suppress bed‑bug populations while adhering to safety standards.