Synergistic herbicidal composition

1. A synergistically effective amount of a synergistic herbicidal composition, comprising a combination of a compound A and a compound B; wherein the compound A is at least one selected from the group consisting of clethodim and sethoxydim; and wherein the compound B is at least one selected from the group consisting of thifensulfuron-methyl, tribenuron-methyl, cyclosulfamuron, bensulfuron-methyl, triasulfuron, mesosulfuron-methyl, monosulfuron, amidosulfuron, metsulfuron-methyl, chlorsulfuron and nicosulfuron; and wherein the weight ratio between the compound A and the compound B is in the range from 100:1 to 1:100.

2. The synergistic herbicidal composition according to claim 1 , wherein the weight ratio between the compound A and the compound B is in the range from 50:1 to 1:50.

3. The synergistic herbicidal composition according to claim 1 , wherein the weight ratio between the compound A and the compound B is in the range from 10:1 to 1:10.

4. The synergistic herbicidal composition according to claim 1 , wherein the combination of the compound (A) and the compound (B) of the composition are:

(1) clethodim+thifensulfuron-methyl;

(2) clethodim+tribenuron-methyl;

(3) clethodim+cyclosulfamuron;

(4) clethodim+bensulfuron-methyl;

(5) clethodim+triasulfuron;

(6) clethodim+mesosulfuron-methyl;

(7) clethodim+monosulfuron;

(8) clethodim+amidosulfuron;

(9) clethodim+metsulfuron-methyl;

(10) clethodim+chlorsulfuron;

(11) clethodim+nicosulfuron;

(12) sethoxydim+thifensulfuron-methyl;

(13) sethoxydim+tribenuron-methyl;

(14) sethoxydim+cyclosulfamuron;

(15) sethoxydim+bensulfuron-methyl;

(16) sethoxydim+triasulfuron;

(17) sethoxydim+mesosulfuron-methyl;

(18) sethoxydim+monosulfuron;

(19) sethoxydim+amidosulfuron;

(20) sethoxydim+metsulfuron-methyl;

(21) sethoxydim+chlorsulfuron; or

(22) sethoxydim+nicosulfuron.

5. The synergistic herbicidal composition according to claim 1 , wherein the synergistic herbicidal composition is an agriculturally acceptable formulation.

6. The synergistic herbicidal composition according to claim 5 , wherein the agriculturally acceptable formulation is selected from the group consisting of wettable powders, emulsifiable concentrates, suspension concentrates, oil-based suspension concentrates, micro-capsules, micro-emulsions, oil-in-water emulsion, suspo-emulsions, water dispersible granules, a mixed formulation of microencapsulated suspension and suspension concentrate (ZC) and ultra-low volume liquids.

7. A method of producing the synergistic herbicidal composition according to claim 1 , comprising mixing a combination containing the compound (A) and the compound (B) with at least one agriculturally acceptable additive.

8. A method for controlling undesired plants, comprising applying the synergistic herbicidal composition according to claim 1 to a plant, plant tissue, plant seed, or cultivation area during preemergence or during postemergence, or during preemergence and postemergence.

9. A method for controlling the growth of undesired plants in fields of resistant rape crops, or resistant soybean crops, or both, comprising applying the synergistic herbicidal composition according to claim 1 to undesired plants, plant tissues thereof, or cultivation areas.

10. The method according to claim 8 , wherein the undesired plants are monocotyledonous weeds, dicotyledonous weeds, or a combination thereof.