4, 5-dihydropyrazole-5-thione derivatives and miticides comprising the same

摘要

PCT No. PCT/JP96/00044 Sec. 371 Date Sep. 11, 1996 Sec. 102(e) Date Sep. 11, 1996 PCT Filed Jan. 12, 1996 PCT Pub. No. WO96/21651 PCT Pub. Date Jul. 18, 1996The object of the present invention is to provide a novel 4, 5-dihydropyrazole-5-thione derivative which exerts remarkably potent miticidal activity. The 4, 5-dihydropyrazole-5-thione derivative of the present invention is represented by the general formula <IMAGE> wherein R1 represents a straight- or branched-chain alkyl group having 1 to 12 carbon atoms or the like; R2 and R3 represent a lower alkyl group or the like; X represents a halogen atom or the like, n is 0 or an integer of 1 to 3; and A represents +545 C+546 or +545 N+546 .