Sentences with phrase «called pyrethrins»

And as with flea shampoos, the usual active ingredient is the family of insecticides called Pyrethrins.

Though several flea shampoos have several active and inactive ingredients, the most common one to kill the fleas is an insecticide chemical called Pyrethrins.

The compounds are synthetic versions of naturally occurring insecticides called pyrethrins harvested from chrysanthemum flowers.

Not exact matches

The worst offenders are the so called «pyrethrins» which includes permethrin, one of the most common insecticides used to treat flea infestations in dogs.

Pyrethrins are found with enhancers, typically a product called piperonyl butoxide, to reduce the chance of resistance by the flea.

The issue we have with many of the over-the-counter products is that many are what we call pyrethroids, or synthetic pyrethrins.

Due to a high demand for pyrethrins, scientists have mastered synthetically made pyrethrin compounds (called pyrethroids).