Jeff from Grandville writes
and then when ground temps are near 50 degrees for post-emergent?
Prodiamine 65 WDG (Generic Barricade) is a pre-emergent herbicide only, so it will not kill any existing weeds like a post emergent does. You should be applying pre-emergent in early Spring before soil temps reach 55 degrees for weed prevention, and then in late Summer/Fall as temperatures drop before they reach about 60 degrees.
The application timing of Prodiamine 65 WDG will vary according to your specific region. We recommend contacting your county extension office to confirm the right application timing for your area. You may also look over our Lawn Care Schedule on our site with general time frames.
Answer last updated on: 09/05/2022
