Claim 1: A herbicidal composition comprising a herbicidally effective amount of (a) a pyridinecarboxylic acid herbicide or an agriculturally acceptable N-oxide, salt or ester thereof and (b) glyphosate or glufosinate or an agriculturally acceptable salt thereof, in where the pyridinecarboxylic acid herbicide comprises a compound defined by the formula (1) where X is N or CY, where Y is hydrogen, halogen, C₁₋₃ alkyl,Halogenated tar c83218323；C₁₋₃ alkoxy,haloalkoxy C₁₋₃,C₁₋₃-alkylthio or C halo-haloalkylthio；R1 is or1'o NR1 ''r1',where R¹ ’is hydrogen, C₁₋₈ alkyl,or arylalkyl C₇₋₁₀,and R¹ ’’ and R¹ ’’ ’are independently hydrogen, C₁₋₁₂-alkyl,C₃₋₁₂ alkenyl,or C₃₋₁₂ alkynyl；R2 is halogen, lease land c832131；haloalkyl C₁₋₄,C₂₋₄ alkenyl,haloalkenyl C₂₋₄,1. C 83228331 asphalt；C₁₋₄ alkoxy,haloalkoxy C₁₋₄,Cilt alkylthio,Halogenated tar c831832421；Amino, rental c83217c83318324,haloalkylamino C₂₋₄,formyl, C₁₋₃ alkylcarbonyl,1. Halocarbon compound c8321c83183323；ciano o un grupo de la f rmula -CR 3DCR -SiR R Re. R1831222 is hydrogen, F, Cl, c831832421；O halogenated tar c831832421；R8313,830404,and R²¹ are independently C₁₋₁₀ alkyl,cycloalkyl C₃₋₆,phenyl, substituted phenyl, C₁₋₁₀ alkoxy,(o) Oh； R3 and r8308s are independent hydrogen, c1832131 and 832626 tar；haloalkyl C₁₋₆,C₃₋₆ alkenyl,haloalkenyl C₃₋₆,1. C 83238331 asphalt；formyl, C₁₋₃ alkylcarbonyl,1. Halocarbon compound c8321c83183323；C₁₋₆ alkoxycarbonyl,1. Asphalt c83217c831832626；C₁₋₆ alkylsulfonyl,trialkylsilyl C₁₋₆,dialkylphosphonyl C₁₋₆,O R3 and r830808 together equal to 5 or 6 saturated rings, or R3 and r83088 together equal to = CR '(r8308'；donde R y R son independientemente hidr geno alquilo CC₃₋₆ alkenyl,1. C 83238331 asphalt；C₁₋₆ alkoxy or C₁₋₆ alkylamino,or R³ ’and R⁴’ taken together with = C represent a 5- or 6-membered saturated ring； A is one of groups A1 to A36 of the group of formulas (2)；R83099,if applied to group A, it is hydrogen, halogen, C₁₋₄-alkyl,haloalkyl C₁₋₄,ciclopropilo halociclopropilo alquenilo Cha
