Control of ectoparasites
Disclosed is a method of controlling ectoparasites that infest companion and livestock animals by applying to the animal an effective amount of 4-tert-butylphenethyl quinazolin-4-yl ether or 4-chloro-5-ethyl-2-methyl-N-[(4-tert-butylphenyl)methyl]pyrazole-3-carboxamide or 5-chloro-N-[2-[4-(2-ethoxyethyl)-2,3-dimethylphenoxy]ethyl]-6-ethyl-4-pyrimidinamine or 4-chloro-3-ethyl-1-methyl-N-[4-(p-tolyloxy)benzyl]pyrazole-5-carboxamide.
1. A method for treating a non-human mammal infested with a flea, tick or fly, the method comprising topically administering to the non-human mammal a composition comprising a compound active against ectoparasites consisting of 5-chloro-N-[2-[4-(2-ethoxyethyl)-2,3-dimethylphenoxy]ethyl]-6-ethyl-4-pyrimidinamine or a salt thereof, wherein the non-human mammal is selected from the group consisting of cattle, sheep, goats, pigs, dogs, cats and horses and wherein the 5-chloro-N-[2-[4-(2-ethoxyethyl)-2,3-dimethylphenoxy]ethyl]-6-ethyl-4-pyrimidinamine or salt thereof is the only compound active against ectoparasites in the composition.
2. The method of claim 1 wherein the composition consists essentially of 5-chloro-N-[2-[4-(2-ethoxyethyl)-2,3-dimethylphenoxy]ethyl]-6-ethyl-4-pyrimidinamine or a salt thereof.
3. A method according to claim 1 , wherein the flea, tick or fly is selected from the families Ixodidae, Argasidae, Muscidae, or Pulicidae.
4. A method according to claim 1 , wherein the flea, tick or fly is selected from Boophilus spp, Rhipicephalus spp, Dermacentor spp, Hyalomma spp, Amblyomma spp, Otobius spp, Ornithodoros spp, Stomoxys spp, or Ctenocephalides spp.
5. A method according to claim 1 , wherein the composition is a liquid or gel.
6. A method according to claim 5 , wherein the active compound is present in a liquid composition at 0.01 to 50.0% by weight.
7. A method according to claim 5 , wherein the active compound is present in a liquid composition at 0.02 to 10.0% by weight.
8. A method according to claim 1 , wherein the administration comprises spraying, dipping, or spotting the composition onto the non-human mammal.
9. A method according to claim 1 , wherein the composition is a solid.
10. A method according to claim 1 , wherein the topical administration comprises fitting the non-human mammal with a solid article comprising the composition.
11. A method according to claim 10 , wherein the solid article is selected from the group consisting of a collar, a collar tag, an ear tag, a tail tag, a limb band and a halter.
12. A method according to claim 11 , wherein the solid article comprises a polymeric material.