Barrier® 50W Dichlobenil Herbicide is formulated to stop all
vegetative growth under asphalt when applied prior to paving. By eliminating
vegetation beneath asphalt, Barrier 50W helps prevent blemishes and repairs
associated with surface heaving, punctures, and sprouting weeds for several
years, as long as the asphalt surface remains intact.
Barrier 50W controls annual and perennial grasses and broadleaf weeds,
including chickweed, crabgrass, dandelion, foxtail, Poa annua, and many
more as listed. And Barrier 50W poses minimum risk to ornamentals growing
adjacent to the asphalt because any roots penetrating the treated area are
pruned off, and the active ingredient is not picked up by the root system.