Stephen H. Brown, Horticulture Agent Dick Dutton, Master Gardener Lee County Extension Fort Myers, Florida 33916-3736 (239) 533-7513, [email protected] Survey of Herbicides Available for Homeowners in Lee County, Florida: October, 2010 Herbicides are listed by their active ingredient. This avoids the confusion that results from multiple brands that use the same active ingredient. The active ingredient is the compound that kills the weed. Be sure to carefully read labels to ensure that the product you wish to use is labeled for the target plant. Read and follow label directions. “The label is the law.” Active Ingredient Brand/Trade Name Weeds Controlled (Common name) 2, 4-D Sta-green, Ultra, Weed and Feed Lawn Fertilizer Dicamba Phosphorus-free Weed & Mecoprop-p Feed Weeds Controlled: Broadleaf weeds and annual grasses 2, 4-D Vigoro, Ultra Turf, Weed Weed and Feed Fertilizer for Bahiagrass, Bermu- Micoprop-p and Feed for Bahiagrass dagrass, Centipedegrass, St. Augustinegrass, Dicamba Zoysiagrass. Do not use on Floratam variety of St. Augustine grass Weeds Controlled: 200 weeds 2,4-D, dimethylamine salt; Bayer, Southern Weed Broadleaf Weeds in Lawns: Do not use on Mecoprop-p, dimethylamine Killer for Lawns Floratam variety of St. Augustinegrass salt, Dicamba, dimethylamine salt Weeds controlled: Kills over 200 broadleaf weeds including dollarweed, spurge, oxalis, clover and chickweed 2,4-D, dimethylamine salt; Bayer, Southern Season Broadleaf Weeds in Lawns: Do not use on Esoxaben: Long Weed Control for Floratam variety of St. Augustinegrass Mecoprop-p, potassium salt; Lawns Dicamba, potassium salt Weeds Controlled: Kills over 200 broadleaf weeds and clover and dandelion 2,4-D; Ortho, Weed-B-Gon Max Broadleaf Weed Killer for use only on Home MCPP-p: for Southern Lawns Lawns Dicamba; Carfentrazone Weeds Controlled: Common Bermudagrass; hybrid Bermudagrass; Bahiagrass; zoysiagrass; St. Au- gustinegrass (except Floratam). 2,4-D; Total Kill, Lawn Weed Broadleaf Weed Control in Lawns MCPP-p: Killer Dicamba; Carfentrazone 2-Phenethyl Propionate, Ecosmart, Organic Weed Kills all Types of Weeds and Grasses Eugenol, Sodium Lauryl Sulfate and Grass Killer Active Ingredient Brand/Trade Name Weeds Controlled (Common name) Ammoniated soap of Garden Safe, Grass and Non-Selective Herbicide that Controls many fatty acids Weed Killer Common Annual Weeds Weeds Controlled: Kills weeds & grasses including dandelion, chickweed and other listed weeds Ammoniated soap of fatty Bayer, Natria, Grass Non-Selective Herbicide that Controls many acids and Weed Killer Common Annual Weeds Weeds Controlled: Kills weeds & grasses including dandelion, chickweed and other listed weeds Ammonium salt of Image, Kills Nutsedge Nutsedge imazaquin Weeds Controlled Include: Nutsedge; dollar- weed; sandbur; annual bluegrass Atrazine Hi Yield, Atrazine Lawn Selective broadleaf weed killer in Lawns Weed Killer Weeds Controlled Include: Thistle; pigweed; purslane; ragweed; cudweed; morningglory; dichondra; yellow nutsedge; spurge; sandspur; crabgrass; smutgrass; henbit; nightshade; clover Atrazine Image, For St. Selective Weed Killer in St. Augustinegrass Augustinegrass and and Centipedegrass Turfs Centipedegrass Weeds Controlled Include: Annual bluegrass; dollarweed; Florida betony; sandspur; spurge; spurweed; woodsorrel; various annual clovers Atrazine Pennington, Signature Weed and Feed Lawn Fertilizer for Centipede and St. Augustine grass Weeds Controlled Incude: Dollarweed, broad- leaf & grassy weeds Atrazine Scotts, Bonus S Max, Weed and Feed Lawn Fertilizer Southern Weed and Feed and Fire Ant Killer Weeds Controlled: Dollarweed and 24 other common lawn weeds Atrazine Scotts, Bonus S, Weed and Feed Lawn Fertilizer Southern Weed and Feed Weeds Controlled: Dollarweed and 24 other common lawn weeds Atrazine Southern AG, Atrazine Control of Both Emerged Weeds and Weeds from Seeds in St. Augustinegrass and Centipede grass Weeds Controlled Include: Crabgrass (suppression only); cudweed; dichondra; Florida betony; henbit; moneywort; mustards; narrowleaf vetch; sandspur; smutgrass; spurge; woodsorrel and various annual clovers Active Ingredient Brand/Trade Name Weeds Controlled (Common name) Atrazine Total Kill, Southern Broadleaf Weed Control in Lawns Lawn Weed Killer Weeds Controlled Include: Preemergence control of cudweed, dichondra, mustard, spurge, crabgrass, smutgrass, Florida betony, narrowleaf vetch, dollarweed, pennywort, annual clover Atrazine Vigoro, Super Green, Weed and Feed Lawn Fertilizer Southern Weed and Feed Weeds Controlled: Broadleaf & grassy weeds Atrazine Vigoro, Ultra Turf, Weed and Feed Fertilizer for St. Augustine, Southern Weed and Centipede, Zoysia & Carpetgrass Feed Weeds Controlled: 50 weeds Atrazine Spectracide, Weed Stop Selective Weed Control in St. Augustine for Lawns – Grass and Centipedegrass St. Augustinegrass and Centipedegrass Weeds Controlled Include: Crabgrass (partial control); cudweed; dichondra; dollarweed; Flor- ida betony; henbit; espedeza; mustards; nar- rowleaf vetch; sandspur; smutgrass; spurge; woodsorrel and various annual clovers Benefin Hi Yield, Crabgrass Pre Emergence Herbicide to control Crab- Trifluralin Control grass and other Annual Weeds in Lawns Weeds Controlled Include: Crabgrasses; goose grass; barnyard grasses; foxtails; partial control of prostrate spurge; spotted spurge; wood sorrels Benefin Setre Chemical, XL26, A Selective Pre-Emergence Surface-Applied Oryzalin Specialty Herbicide Herbicide for control of Annual Grasses and many Broadleaf Weeds. Grass Weeds Controlled Include: Water- grass; crabgrass, large; crabgrass, smooth; crowfootgrass; goosegrass (silver crabgrass); panicum; sandbur, field; signalgrass Broadleaf Weeds Controlled Include: Carpet- weed; chickweed; henbit; knotweed; prostrate lambsquarters; pigweed; redroot pigweed; spring pigweed; purslane; common pusley; Florida purslane; pusley; rocket; rockpurslane; spurge; prostrate woodsorrel Bentazon Southern AG, Controls Nutsedge & Certain Broadleaf Basagran, Sedge Weeds in Established Lawns Control Weeds Controlled Include: Annual sedges; yellow nutsedge; spur-weed; lambsquarters; chickweed; common groundsel; jimsonweed; common purslane; cocklebur; beggarticks; wild mustard; wild poinsettia; wild buckwheat; velvetleaf; Canada thistle; musk thistle Active Ingredient Brand/Trade Name Weeds Controlled (Common name) Chelated Iron - Iron HEDTA Ortho, Ecosense, Lawn Broadleaf Weed Control in Lawns (FeHEDTA) Weed Killer Weeds Controlled or Suppressed Include: Dande- lion; false dandelion; white clover; back medic; bull thistle; Canada thistle; common chickweed; slender speedwell; broadleaf plantain; narrow-leaved plan- tain; moss; algae Cinnamon Bark Garden Weasel AG, All-natural ingredient spot weed killer will not Crabgrass Killer harm warm turf grasses like St. Augustine, Bermuda, Bahia, or Centipede grass Weeds Controlled: Crabgrass; basketgrass; chick- weed; clover Dicamba Ortho Max, Weed-B-Gon Control Weeds in Lawns Including Bahiagrass, 2,4-D Bermudagrass, St. Augustine (except Floratam), and Zoysiagrass Weeds Controlled Include: Kills over 200 weeds. Clovers; creeping Charlie; cudweed; curly dock; dan- delion; false dandelion; Florida pusley; henbit; oxalis; pennywort; plantains; purslane; red sorrel; sheep sorrel; spurges; spurweed; thistles; wild carrot; wild geranium; wild onion Dimethylamine Salt of Fertilome, Weed out plus Weed and Feed Lawn Fertilizer propionic acid Lawn Ferilizer Dimethylamine Salt of 2,4-D Post-Emergent Broadleaf Weed Control on Cool Dimethylamine Salt of Dicamba and Warm Season Grasses Dimethylamine Salt of Ferti-lome, Weed Out, Kills Weeds in Lawns propionic acid Lawn Weed Killer Dimethylamine Salt of 2,4-D Weeds Controlled: Many broadleaf weeds including Dimethylamine Salt of Dicamba poison ivy Dimethylamine Salt of Southern AG, Lawn Weed Kills Weeds in Lawns 2- propionic acid Killer with Trimec Dimethylamine Salt of 2,4-D Weeds Controlled Include: Chicory; chickweed; Dimethylamine Salt of Dicamba clover; dandelion; ground ivy; henbit; knotweed; lambsquarter; lespedeza; mallow; morningglory; mustard; oxalis; peppergrass; pigweed; plantain; poison Ivy; poison oak; purslane; ragweed; sheep sorrel; shepherdspurse; wild carrot; wild garlic; wild lettuce; wild onion; yarrow Diquat dibromide Syngenta, Reward, Land- Non-selective, highly active contact material in scape and aquatic water Herbicide Weeds Controlled Include: Water lettuce; water hyacinth; duckweed; Salvinia spp.; pennywort; frog’s bit1; cattails Submersed Weeds Include: Bladderwort; hydrilla; watermilfoils; pondweeds; coontail; Elodea spp.; Brazilian elodea, naiad, algae Diquat dibromide; Spectracide, Weed and Vegetation Killer Fluazifop-p-butyl; Grass Killer Dicamba, dimethylamine Weeds Controlled: Kills weeds & grasses Active Ingredient Brand/Trade Name Weeds Controlled (Common name) Diquat; Roundup, Weed and Non-selective vegetation killer Glyphosate Grass Concentrate Plus Weeds Controlled: kills existing vegetation Dithiopyr Hi Yield, Turf and Crabgrass Ornamental Weed and Grass Stopper Weeds Controlled: Crabgrass and many other weeds in lawns Dithiopyr Turf Pride, Accublend Weed and Feed Fertilizer for Bahiagrass, Centi- Fertilizer with Herbicide pede grass but not for St. Augustinegrass Weeds Controlled: 42 different annual grasses and broadleaf weeds. Dithiopyr Turfpro A Pre-Emergence Herbicide for Crabgrass Weed and Feed Lawn Fertilizer Fluazifop-P-Butyl Ortho, Grass-B-Gon, Controls Grassy Weeds Garden Grass Killer Weeds Controlled Include: Bermudagrass,