Product kills most weeds with a single application. Some tough weeds may need a repeat treatment if regrowth appears., Avoid contact by spray with cultivated plants & other desired vegetation., Always read the label fully before use., Shake well before use. Rotate nozzle to Spray or Jet. Spray weed leaves lightly until visibly moistened but avoid wetting to run-off., Treatment effect on some weeds will be seen within a few days. It may take up to 4 weeks for effects to be seen on other tougher weeds., Leave weeds for at least 7 days before cultivating the ground.