Herbicidal compositions

1. A herbicidal composition comprising:

(a) from about 5% to 40% by weight of desmedipham;

(b) from about 10% to 20% by weight of N-methylpyrrolidone;

(c) from about 20% to 40% by weight of a hydrophobic aromatic solvent comprising aromatic hydrocarbons from about C9 to C16 and having a boiling range of from about 165° C. to about 290° C.;

(d) from about 5% to 15% by weight of a surfactant which is a mixture of monohydrogen and dihydrogen phosphate esters of α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy poly(oxyethylene) wherein the poly(oxyethylene) portion averages about 16 moles per mole of the α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy portion; and

(e) from about 2% to 15% of one or more surfactants, wherein said one or more surfactants is a polyoxyethylene C12-C15 alcohol having an average hydrophilic-lypophilic balance value of from about 5 to 15.

2. The herbicidal composition of claim 1 comprising:

(a) from about 25% to 40% by weight of desmedipham;

(b) from about 15% to 20% by weight of N-methylpyrrolidone;

(c) from about 25% to 35% by weight of a hydrophobic aromatic solvent comprising aromatic hydrocarbons from about C9 to C16 and having a boiling range of from about 165° C. to about 290° C.;

(d) from about 5% to 15% by weight of a surfactant which is a mixture of monohydrogen and dihydrogen phosphate esters of α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy poly(oxyethylene) wherein the poly(oxyethylene) portion averages about 16 moles per mole of the α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy portion;

(e1) from about 3% to 9% of a first polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 4 moles of ethoxy groups per mole of alcohol; and

(e2) from about 2% to 4% of a second polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 20 moles of ethoxy groups per mole of alcohol.

3. A herbicidal composition comprising:

(a) from about 12% to 18% by weight of desmedipham;

(b) from about 12% to 18% by weight of phenmedipham;

(c) from about 15% to 20% by weight of N-methylpyrrolidone;

(d) from about 25% to 35% by weight of a hydrophobic aromatic solvent comprising aromatic hydrocarbons from about C9 to C16 and having a boiling range of from about 165° C. to about 290° C.;

(e) from about 5% to 15% by weight of a surfactant which is mixture of monohydrogen and dihydrogen phosphate esters of α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy poly(oxyethylene) wherein the poly(oxyethylene) portion averages about 16 moles per mole of the α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy portion;

(f) from about 3% to 9% of a first polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 4 moles of ethoxy groups per mole of alcohol; and

(g) from about 2% to 4% of a second polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 20 moles of ethoxy groups per mole of alcohol.

4. A herbicidal composition comprising:

(a) from about 5% to 15% by weight of desmedipham;

(b) from about 10% to 20% by weight of phenmedipham;

(c) from about 12% to 18% by weight of ethofumesate;

(d) from about 15% to 20% by weight of N-methylpyrrolidone;

(e) from about 25% to 35% by weight of a hydrophobic aromatic solvent comprising aromatic hydrocarbons from about C9 to C16 and having a boiling range of from about 165° C. to about 290° C.;

(f) from about 5% to 15% by weight of a surfactant which is mixture of monohydrogen and dihydrogen phosphate esters of α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy poly(oxyethylene) wherein the poly(oxyethylene) portion averages about 16 moles per mole of the α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy portion;

(g) from about 3% to 9% of a first polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 4 moles of ethoxy groups per mole of alcohol; and

(h) from about 2% to 4% of a second polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 20 moles of ethoxy groups per mole of alcohol.

5. The herbicidal composition of claim 1 , wherein component (e) comprises two or more non-ionic surfactants.

6. The herbicidal composition of claim 1 , wherein said herbicidal composition forms a stable emulsion when diluted in water.

7. The herbicidal composition of claim 2 , wherein component (e1) exhibits a hydrophilic-lypophilic balance value of about 9.

8. The herbicidal composition of claim 2 , wherein component (e2) exhibits a hydrophilic-lypophilic balance value of about 16 .

9. The herbicidal composition of claim 1 , wherein said herbicidal composition comprises from about 5% to 15% by weight of desmedipham.

10. The herbicidal composition of claim 1 , wherein said herbicidal composition comprises from about 13% to 17% by weight of desmedipham.

11. The herbicidal composition of claim 4 , wherein said herbicidal composition comprises from about 13% to 17% by weight of phenmedipham.

12. The herbicidal composition of claim 4 , wherein said herbicidal composition comprises from about 13% to 17% by weight of ethofumesate.

13. The herbicidal composition of claim 1 comprising:

(a) about 30% by weight of desmedipham;

(b) about 18% by weight of N-methylpyrrolidone;

(c) about 31% by weight of a hydrophobic aromatic solvent comprising aromatic hydrocarbons from about C9 to C16 and having a boiling range of from about 165° C. to about 290° C.;

(d) about 10% by weight of a surfactant which is a mixture of monohydrogen and dihydrogen phosphate esters of α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy poly(oxyethylene) wherein the poly(oxyethylene) portion averages about 16 moles per mole of the α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy portion;

(el) about 7% of a first polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 4 moles of ethoxy groups per mole of alcohol; and

(e2) about 3% of a second polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 20 moles of ethoxy groups per mole of alcohol.

14. A herbicidal composition comprising:

(a) about 15% by weight of desmedipham;

(b) about 15% by weight of phenmedipham;

(c) about 18% by weight of N-methylpyrrolidone;

(d) about 31% by weight of a hydrophobic aromatic solvent comprising aromatic hydrocarbons from about C9 to C16 and having a boiling range of from about 165° C. to about 290° C.;

(e) about 10% by weight of a surfactant which is mixture of monohydrogen and dihydrogen phosphate esters of α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy poly(oxyethylene) wherein the poly(oxyethylene) portion averages about 16 moles per mole of the α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy portion;

(f) about 7% of a first polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 4 moles of ethoxy groups per mole of alcohol; and

(g) about 3% of a second polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 20 moles of ethoxy groups per mole of alcohol.

15. A herbicidal composition comprising:

(a) about 10% by weight of desmedipham;

(b) about 13% by weight of phenmedipham;

(c) about 16% by weight of ethofumesate;

(d) about 16% by weight of N-methylpyrrolidone;

(e) about 25% by weight of a hydrophobic aromatic solvent comprising aromatic hydrocarbons from about C9 to C16 and having a boiling range of from about 165° C. to about 290° C.;

(f) about 10% by weight of a surfactant which is mixture of monohydrogen and dihydrogen phosphate esters of α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy poly(oxyethylene) wherein the poly(oxyethylene) portion averages about 16 moles per mole of the α-[2,4,6-tris[1-(phenyl)ethyl]phenyl ω-hydroxy portion;

(g) about 5% of a first polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 4 moles of ethoxy groups per mole of alcohol; and

(h) about 5% of a second polyethoxylated alcohol wherein the alcohol is a C12-C15 alcohol and the polyethoxylated portion averages about 20 moles of ethoxy groups per mole of alcohol.

16. An emulsion concentrate comprising the herbicidal composition of claim 1 , wherein said emulsion concentrate is stable when diluted in water.

17. An emulsion concentrate comprising the herbicidal composition of claim 3 , wherein said emulsion concentrate is stable when diluted in water.

18. An emulsion concentrate comprising the herbicidal composition of claim 4 , wherein said emulsion concentrate is stable when diluted in water.