| abstract |
The invention relates to synergistic agents and methods for regulating plant growth which, as active ingredient of the formula I, contain the ethyl ester of 4-cyclopropyl-3,5-cyclohexanedione-1-carboxylic acid of the formula I. together with a synergistically effective amount of a phenol ether of the formula II a chloroacetanilide of the formula III a dinitroaniline of the formula IV of the ethyl ester of N-benzoyl-N- (3,4-dichlorophenyl) -DL-alanic acid, or of 1,1-dimethylpyridine chloride, 2-chloro-N, N-trimethylethylammonium chloride, 2-chloroethylphosphonic acid, 1-phenyl -4,4-dimethyl-2- (1H-1,2,4-triazol-1-yl) pent-1-en-3-ol, 1- (4-chlorophenyl) -3,3-dimethyl-1 - (1H-1,2,4-triazol-1-yl) butan-2-ol or of 5- (1-methylthiocyclopropan-1-yl) - [- (trans-2-chloroallyloximino) propionyl] cyclohexane -1,3-dione.n n n R₁ to R₉ in formulas II to IV have the meaning given in the description. The agent serves to regulate, especially to inhibit the growth of cereals and grass and is advantageously used post-emergent. |