Ixodes holocyclus tick might "squeeze" saliva and gut contents into the host. Specifically, application of methylated spirit, nail polish remover, turpentine or ti-tree oil is thought to irritate the tick and make it inject more of the noxious substances. Spreading butter or oil over the tick is no longer recommended either. Application of pyrethrin (or pyrethroid) insecticides has been suggested 'as a narcotic and a toxicant, which prevents the tick from injecting its saliva' but with this method the tick may remain physically attached for 24 hrs before it drops off dead. Do not use pyrethrin containing products on cats as this
Science of smells Science of smells The odorology or science of smells is a technology used mainly in criminology for judicial identification. The technology is based on the analysis of smells by dogs notably to merge the criminals or to identify the smell of objects (explosives, drugs). Olfaction of dogs is used for a long time by the police (location of drug, of explosives, of weapon, body of missing persons, criminals' identification) or the services of rescue (bodies buried under avalanches). From 1910, a dog handler Friedo Schmidt describes in his book Verbrecherspur und Polizeihund («The criminal links and the police dog») how