Paul from Delaware writes
Even with weed block some weeds get thru so we are interested in purchasing this to spray our large gravel areas. We will be using a sprayer that covers 470sq ft per gallon. Since all the mixture instructions relate to spraying on grass what would the mixture be to spray on gravel. Also since there is grass and bushes around the gravel how far away should we stop spraying so not to damage the grass and bushes. Thank You
Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is safe around most established turf and ornamentals, just stay outside of the root zone of the desirable plants/grass. When spraying the gravel, you'll really need to water it in after spraying to work it down through the gravel and into the soil. As for mix rates, if there are ornamentals nearby, then I would use that rate. Be sure not to get spray where they may plant annuals.
Answer last updated on: 03/28/2023
