| abstract |
PCT No. PCT/JP92/01690 Sec. 371 Date Dec. 8, 1993 Sec. 102(e) Date Dec. 8, 1993 PCT Filed Dec. 24, 1992 PCT Pub. No. WO93/13078 PCT Pub. Date Jul. 8, 1993.A herbicide containing a pyrimidine or triazine derivative of the formula (I): <IMAGE> (I) [wherein A is a furan ring, a pyrimidine ring, a 1,2,4-triazine ring or the like which may suitably be substituted, R is a hydroxyl group or a lower alkoxy group, each of R1 and R2 which may be the same or different, is a halogen atom, a lower alkyl group or a lower alkoxy group, W is an oxygen atom or a sulfur atom, and Z is nitrogen or a methine group] and its salt, as an active ingredient, is presented. The pyrimidine or triazine derivative of the present invention has excellent herbicidal effects against noxious weeds in paddy fields, upland fields and non-agricultural fields. |