Patent ID: 8461085

Claim:
A method of inhibiting weed growth, said method comprising: providing an m-tyrosine compound, wherein said m-tyrosine compound has a formula of Formula I: wherein R 1 and R 2 are independently selected from the group consisting of H, alkyl, alkenyl, alkynyl, and cycloalkyl; R 3 is selected from the group consisting of H, alkyl, alkenyl, alkynyl, and cycloalkyl; X is O; R 4 , R 6 , and R 7 are independently selected from the group consisting of H, hydroxyl, halogen, amino, and nitro; R 5 is selected from the group consisting of H, halogen, amino, and nitro; and R 8 and R 9 are independently selected from the group consisting of H, hydroxyl, halogen, amino, methyl, and halogenated methyl, or providing a salt of said m-tyrosine compound and treating a weed or weed seed with the m-tyrosine compound or the salt of said m-tyrosine compound under conditions effective to inhibit growth of said weed or weed seed in a growth medium.