Swal Ferio Herbicide - 1LTSWAL Ferio Herbicide is a non selective, post emergence herbicide used for effective control of a wide range of weeds It contains Glufosinate Ammonium 13. 5% SL, which acts as a contact herbicide inhibiting glutamine synthetase enzyme The product provides broad spectrum control of both grassy and broadleaf weeds in plantation crops It is mainly recommended for crops like cotton and tea, applied as a directed spray on actively growing weeds Ferio