| abstract |
<CHEM> <CHEM> Ectoparasitic insect pest controllers for animals, containing hydrazine derivatives of the general formula (I) as the active ingredient, and methods for application of the same: (I) Äwherein A is (II), (III), (IV), (V) (wherein R<4> and R<5> are each H, C1- 6 alkyl, or the like; and X is H, or one to five substituents selected from among halogeno and optionally halogenated C1-6 alkyl groups); R<1> is H or C1-6 alkyl; R<2> and R<3> are each H, OH, C1-6 alkyl, phenylcarbonyl, or the like; Y is H, or one to five substituents selected from among halogeno, nitro, and cyano; Z is halogeno, cyano, C1-6 alkyl, or the like; and W is O or SÜ. The insect pest controllers exert remarkable controlling effects on parasitic insect pests harmful to domestic or pet animals, e.g. fleas, lice, ticks. |