Topramezone 336 g/L SC is a selective post-emergence herbicide primarily used to control broadleaf weeds and certain grassy weeds in crops like maize/corn. The best time of application is when weeds are young and actively growing, usually at the 2–6 leaf stage for most weeds. For effective control, it should be applied after the crop has established (typically 2–4 leaf stage of maize) and before the weeds become large or flowering, as older weeds are less susceptible. Application should be done under calm, dry weather, avoiding windy conditions or imminent rainfall, and early morning or late afternoon is preferred to reduce volatilization and maximize herbicide uptake.