[Activity of neem extract on the embryonary development of Ctenocephalides felis felis (Bouché, 1835) (Siphonaptera: Pulicidae)].

The present study had as objective to evaluate the activity of limonoid azadiractin, extracted of the seeds of the plant Azadirachta indica, neem, on the embryonary development of Ctenocephalides felis felis. A dog was sprayed with the formulation 10%, another dog was kept as control, without treatment. Both had been infested weekly with 600 fleas, in the ratio of 1:1 between males and females.

[Efficacy of the pyrethroid permethrin on the control of Psoroptes ovis (Hering, 1838) (Acari:Psoroptidae) in naturally infested rabbits (Oryctolagus cuniculus)].

The goal of the present study was to evaluate the efficacy of a spray formulation containing 2% of the pyrethroid permethrin on the control of Psoroptes ovis in naturally infested rabbits. Ten rabbits, presenting clinical signs of psoroptic mange in both ear canals. The animals were divided into two groups of five: control, without treatment (GI) and a second group (GII) treated with a single application of 2% permethrin.

[Miticidal efficacy of thiabendazole against Otodectes cynotis (Hering, 1838) in dogs].

The aim of the present study was to evaluate the efficacy of thiabendazole on the treatment of Otodectes cynotis infestations in dogs. Ten naturally infested beagle dogs were used. The mites were diagnosed through otoscopy.