Spike 80 DF provides both preemergence and postemergence total control of woody plant species, brush and weeds on noncrop areas. Usage Rate Recommendations: 1.25 - 5 Pounds per Acre. Target Pests: Acacia, blackbrush Acacia, catclaw Acacia, twisted Alder, red Alder, speckled Alfalfa Ash, green Ash, white Aspen, bigtooth Aster, heath Aster, white heath Barley Barley, little Bassia, fivehook Bedstraw Beech, American Birch, gray Blackberry, allegheny Blackberry, evergreen Blueberry Bluegrass, Kentucky Bluegrass, annual Bouncingbet Boxelder Bromegrass, downy Bromegrass, ripgut Bromegrass, smooth Broomsedge Buckbrush Buffelgrass Burclover Buttercup Buttercup, smallflower Camphorweed Canarygrass, reed Carrot, wild Catsear, spotted Ceanothus, wedgeleaf Ceniza (Texas silverleaf) Chamise Chaparral, whitethorn Cheat Cherry, bitter Cherry, black Chickweed Chickweed, common Chokecherry, common Clover, red Cocklebur Colubrina, Texas Condalia, bluewood Condalia, lotebush Cottonwood, eastern Creeper, Virginia Croton Crowfootgrass Cudweed Dock, curly Dogfennel Dogwood, flowering Dogwood, roughleaf Douglasfir Elm, American Elm, Chines. Areas of Use: Airport runways Base of transmission towers and poles Fencerows Firebreaks Highway guardrails Industrial buildings Lumberyards Non-cropland areas Railroad yards Rights-of-way Road shoulders where no vegetation is desired Sign posts and markers Under asphalt and concrete pavements Utility substations.