Jonathan from Ny writes
Resolute 4FL Herbicide has Prodiamine as the active ingredient and Tenacity has Mesotrione. Resolute acts only as a pre-emergent where as Tenacity can be both a pre-emergent or a post-emergent. Tenacity recommends tank mixing with a true pre-emergent when used for this application to get better control as it only lasts 30 days a pre.
Answer last updated on: 10/19/2021