Pyrethrins and permethrin target only adult fleas and ... and pet guardians should not use them as the only form of flea and tick control. A flea and tick shampoo for dogs can be a good first ...
Toxic substances used in flea and tick ... imidacloprid and permethrin, which were both detected in 89% of nests. All three of these chemicals are banned for use as pest control on EU farms ...