Beth from Alberta writes
We usually apply when a light layer of frost is on the shrub beds but no snow...this year we are later but now there is a layer of snow on the beds. Will it work it's way down or stay where it is until it thaws?
The snow has to thaw in order for Casoron 4G Herbicide to work. It will have to be reapplied and watered in if the snow does not thaw within 10 days of application.
Answer last updated on: 11/06/2017
