How long till I can apply wintergrass killer after using granular weed n feed
I have recently applied granular weed n feed to my lawn (2 weeks ago), which has been successful in reducing the clover. However I need to kill wintergrass now. I have used the wintergrass killer 6 weeks ago, can I reuse it again now?
Lawns • Weeds
As the active constituent Propyzamide is pre-emergent and root-absorbed, it kills newly emerging seeds as they throw out their first root. It needs water in the soil to be taken up and can last for up to 6 months in soil . On older plants, it damages them so in the first instance of hot days, it cannot draw up water.
yates
Answered: 6 Sep, 2021