Which characteristic is true for bispyribac-sodium?

Bispyribac-sodium is classified as an enzyme inhibitor, specifically targeting the enzyme acetolactate synthase (ALS). This enzyme plays a crucial role in the biosynthesis of branched-chain amino acids, which are essential for plant growth and development. By inhibiting this enzyme, bispyribac-sodium disrupts the production of these amino acids, leading to the eventual death of susceptible plants.

This mode of action not only highlights its effectiveness in controlling certain aquatic weeds but also underlines its selectivity, as it typically affects specific plant families that rely on these amino acids. Understanding its role as an enzyme inhibitor is vital for anyone involved in aquatic weed control, as it informs both the application strategies and the expected outcomes of using this herbicide in various environments.