According to the new CAPC Mosquito Control Guidelines, there are several products available for use on dogs to repel and kill mosquitoes for an entire month.
The CAPC Mosquito Control Guidelines also cite “recent research indicates that treatment of dogs with a combination of dinotefuran, permethrin and pyriproxyfen (Vectra 3D®) inhibits uptake of heartworm microfilariae from infected dogs and prevents transmission of heartworm infective larvae from infected mosquitoes to non-infected dogs. These spot-on products are not labeled for use in cats, nor should they be used in cats. Long-lasting permethrin-impregnated clothing and bedding is also available for dogs (not cats) to repel mosquitoes. Mosquito control products approved for use on dogs should not be used on humans.”
A complete list of available ectoparasiticidal products is available at capcvet.org.