Amino Acid Synthesis Inhibiter Based Systemic Herbicide inhibits the EPSP synthase enzyme, which leads to depletion of key amino acids that are necessary for protein synthesis and plant growth. The Systemic Herbicide is based on amino acid synthesis inhibiter. The Systemic Herbicide is effective against annual and perennial grasses and broad leaf weeds in tea. Amino Acid Synthesis Inhibiter Based Systemic Herbicide is available in 200 ml, 500 ml, 1 litre and 5 litres packs to suit specific requirement.