abstract |
(57) [Problem] To provide a method for effectively controlling ectoparasites of an animal for a long period of time. SOLUTION: 1- (2,6-difluorobenzoyl) -3- [2-Fluoro-4- (1,1,2,3,3,3 -Hexafluoropropoxy) phenyl] urea to a host animal, a method for controlling ectoparasites in an animal, and administering the compound to a host animal. How to inhibit the hatching of eggs. |