Gramex is a broad-spectrum, non-selective contact herbicide containing 24% Paraquat Dichloride as the active ingredient. It delivers rapid and effective control of broadleaf weeds and grasses. Gramex works by disrupting the photosynthesis process, generating superoxide radicals that damage cell membranes and cytoplasm, leading to quick desiccation and death of the weeds. Ideal for non-crop areas and pre-planting field preparation.