How should cypermethrin be used for fleas? - briefly
Apply cypermethrin as a spot‑on or spray treatment following label directions, covering the animal’s coat and the immediate environment, and repeat the application after the flea life cycle ends.
How should cypermethrin be used for fleas? - in detail
Cypermethrin is a synthetic pyrethroid employed to eradicate flea infestations on animals and in indoor environments. Effective use requires precise dosage, correct delivery method, and adherence to safety precautions.
For topical treatment of pets, apply the product according to the label‑specified concentration, typically 0.1 % to 0.2 % cypermethrin in a spot‑on formulation. Measure the animal’s weight and select the corresponding dose; for a dog weighing 10 kg, use 1 ml of a 0.1 % solution. Apply the liquid directly to the skin at the base of the neck, avoiding the eyes and mucous membranes. Allow the animal to dry before contact with other animals or humans.
For environmental control, employ a spray or fogger containing 0.03 % to 0.05 % cypermethrin. Follow these steps:
- Remove pet bedding, vacuum carpets and upholstery, then discard the vacuum bag.
- Dilute the concentrate with water as instructed, usually 1 ml per liter of water.
- Evenly mist all surfaces where fleas may reside: floorboards, under furniture, cracks, and crevices.
- Keep the area closed for the recommended contact time, typically 2 hours, before re‑entering.
- Repeat treatment after 7 days to interrupt the flea life cycle.
Safety measures include wearing gloves and a mask during application, keeping children and un‑treated pets away from treated zones, and storing the product out of reach of livestock. Do not apply cypermethrin to cats, as they lack sufficient metabolic pathways to detoxify pyrethroids, leading to neurotoxicity.
Environmental considerations: cypermethrin degrades rapidly in sunlight but persists in soil. Avoid runoff into waterways; apply only on indoor surfaces or confined outdoor areas. Record the date, concentration, and location of each application for future reference and compliance with local regulations.