This product takes 2-4 weeks to completely kill weeds. However, it has proven to be much more effective than faster-acting weed controls. Temperatures below 65°F or above 90°F may cause weeds to be dormant. Mowing 2 days before or after application reduces leaf surface and plant's ability to absorb the herbicide.

Most weeds will show signs of wilting or yellowing of new growth within 24 hours of application. Necrosis will spread, turning weeds brown and killing them within 14 to 28 days. If seeds were fully developed before the weeds die, they will still be viable, however. This means new weeds will crop up from seeds, requiring additional treatment.