Identification of a non-host semiochemical from miniature pinscher, Canis lupus familiaris, that repels Rhipicephalus sanguineus sensu lato (Acari: Ixodidae)

It is already known that the beagle breed of domestic dogs produces semiochemicals capable repelling brown dog tick, Rhipicephalus sanguineus sensu lato (s.l.). With a view to discovering new non-host as tick repellents, we compared produced by putative tick-resistant dog, miniature pinscher, with (beagle) and tick-susceptible (English cocker spaniel) breeds. Two compounds beagles, i.e. 2-hexanone benzaldehyde, were shown be present in samples collected from all three Furthermore, two compounds, 6-methyl-5-hepten-2-one 1,2,4-trimethylbenzene, found higher amounts pinscher dogs. The mean 1,2,4-trimethylbenzene similar for beagles pinschers (P > 0.05) than means observed spaniels < 0.05), whereas amount was significantly other breeds In Petri-dish assays adult R. s.l., repellent observation periods evaluated highest concentrations (0.100 0.200 mg.cm?2, P 0.01). obtained results support our hypothesis are agree previous observations being least parasitized ticks. semiochemical has potential developed use protection susceptible s.l.