Peak 75 WG

Peak is a selective post-emergence herbicide formulated as water-dispersible granules containing 750 g/kg prosulfuron, a sulfonylurea that inhibits the ALS enzyme. It controls a broad range of annual and some perennial broadleaf weeds, including sunflower and rapeseed volunteers, knotweeds, cocklebur and thistles, in maize, wheat, barley, millet, sorghum, rice and flax. Applied at 15–20 g/ha from the 3–8 leaf stage in maize and up to the flag leaf in cereals, it also provides residual soil activity that suppresses new weed flushes.