How do I mix deltamethrin to treat a house for fleas? - briefly
Mix the deltamethrin concentrate with water at the label‑specified concentration (typically 0.05 % active ingredient, about 1 ml of concentrate per 4 L of water), then spray evenly on all floors, carpets, and bedding using a calibrated sprayer. Allow the surface to remain wet for the recommended contact time before re‑entry.
How do I mix deltamethrin to treat a house for fleas? - in detail
Mixing a deltamethrin solution for indoor flea control requires precise measurement, proper equipment, and strict safety measures.
Begin by gathering a calibrated measuring container, a clean mixing bucket, a sturdy stir stick, protective gloves, goggles, and a respirator rated for pesticide vapors. Verify that the product label specifies a concentration suitable for residential use; most formulations are supplied at 0.025 % active ingredient.
Calculate the required volume of concentrate. For a typical application rate of 0.1 mg of active ingredient per square foot, a 1,000‑square‑foot home needs 100 mg of deltamethrin. Convert this to milliliters using the product’s concentration (e.g., 0.025 % equals 250 mg per liter). The formula is:
Required ml = (Desired mg ÷ Concentration mg/L)
Thus, 100 mg ÷ 250 mg/L = 0.40 ml of concentrate. Measure this amount with a syringe or graduated pipette.
Add the measured concentrate to the mixing bucket, then fill the bucket with water to the total volume recommended on the label—commonly 1 gallon (3.8 L) for the calculated amount. Stir gently until the liquid appears uniform; avoid vigorous shaking, which can create foam and reduce efficacy.
Before application, inspect all interior surfaces for cracks, gaps, or excessive clutter that could impede spray coverage. Use a low‑pressure fogger or a handheld pump sprayer calibrated to deliver the recommended amount per square foot. Apply the solution evenly, maintaining a consistent distance of 12–18 inches from surfaces. Pay special attention to carpets, pet bedding, under furniture, and baseboards, as these are primary flea habitats.
Allow the treated areas to remain undisturbed for at least two hours. Ventilate the house by opening windows and running fans to dissipate residual vapors. Keep pets and children out of the environment for the period specified on the product label, typically 24 hours.
After treatment, clean all equipment with soap and water, then rinse thoroughly. Store any remaining concentrate in its original, tightly sealed container, away from heat and direct sunlight, and label it with the date of preparation.
Finally, record the date, concentration, total volume mixed, and areas treated. This log assists in scheduling follow‑up applications and ensures compliance with local pesticide regulations.