Dave writes
The product label for Ranger Pro Herbicide does not specify a certain amount of time but it does say that heavy rain soon after application may require a repeat application. You just want to make sure you have at least 6 hours of dry weather after you apply Ranger Pro to ensure its absorbed and not washed away, but up to 24 hours with dry weather is ideal for maximum uptake.
Answer last updated on: 02/01/2010