Turfgrass Herbicides for Homeowners Tim R Murphy Extension
Turfgrass Herbicides for Homeowners Tim R. Murphy Extension Weed Scientist The University of Georgia
Homeowner Weed Control Ø Fair range of products Ø Chemical company mergers Ø Product lines may vary year to year Ø Most basics market through formulators (Sta. Green, Greenlight, Ortho, etc) Ø Ortho to Monsanto to Scotts Ø Bayer is entering homeowner markets
Dinitroanilines Ø Turfgrasses and ornamentals Ø Control annual grasses and a few annual broadleaf weeds Ø Do not leach Ø Use on established turfgrasses and ornamentals
Dinitroanilines - Professional Ø Benefin (Balan) Ø Benefin + trifluralin (Team, Team Pro) Ø Benefin + oryzalin (XL) Ø prodiamine (Barricade) Ø oryzalin (Surflan) Ø pendimethalin (Pendulum, Pre-M) Ø trifluralin (Treflan)
Benefin Products - Homeowners Ø Balan Ø Pennington Crabgrass Preventer Ø Reseeding restrictions è 2. 0 lbs. ai/acre - 6 weeks è 3. 0 lbs. ai/acre - 12 to 16 weeks
Benefin + Trifluralin Products Homeowners Ø Team Pro Ø Sta. Green Crabgrass Preventer & Fertilizer Ø Green. Light First Down Crabgrass Control Ø Hi-Yield Crabgrass Preventer Ø Reseeding restrictions èlow rate 8 weeks; high rate 12 to 16 weeks
Benefin + Oryzalin Products Homeowners Ø Setre XL 2 G Ø XL Ø Greenlight Amaze Grass and Weed Preventer Ø Reseeding restrictions èlow rate 6 weeks; high rate 12 to 16 weeks
Pendimethalin Products Homeowners Ø Scotts Turf Builder with Halts Crabgrass Preventer (contains fertilizer) Ø Scotts Halts Crabgrass Preventer (no fertilizer) Ø Lesco Pre-M Ø Reseeding restrictions è 3 months
Pre Herbicides - Homeowners Ø Oryzalin - Surflan èreseeding: 3 to 4 months Ø Bensulide - Green. Light Betasan èreseeding: 4 months Ø Prodiamine - Sta. Green Crabgrass Preventer èreseeding: 4 to 5 months
Dithiopyr Products Homeowners Ø Professional : Dimension Ø Homeowner: è Sta. Green Crab. Ex Ø Reseeding restrictions è 3 to 4 months
Trifluralin Products Homeowners Ø Preen-N-Green Ø Snapshot - trifluralin + isoxaben
Isoxaben Products - Homeowners Ø PRE herbicide for control of annual broadleaf weeds Ø Primarily used in woody ornamentals Ø Gallery Ø Greenlight Portrait Ø Reseeding restrictions - 2 months
EPTC Products - Homeowners Ø PRE control of annual grass and broadleaf weeds Ø Woody Ornamentals, some flowers, groundcovers Ø Preen for Groundcovers
2, 4 -D + MCPP Ø Ortho Weed-B-Gon Weed Killer èReady-to-use èSpot spray product èMay discolor St. Augustine and centipede
2, 4 -D + MCPP + Dicamba Ø Acme Super Chickweed Killer Ø Dragon Lawn Weed Killer Ø Green. Light Wipeout Ø Rigo Super Lawn Weed Killer Ø Spectrum Lawn Weed Killer 33 Plus Ø Fertilome Weed Out Lawn Weed Killer Ø Trimec Classic
2, 4 -D + MCPP + Dicamba Ø Spectracide Brush Killer Ø Spectracide Weed Stop Ø Ace Lawn Weed Killer Ø Enforcer Weed Stop Ø Vigoro Lawn Weed Control Ø Safer Weed Away Ø Reseeding - 3 to 4 weeks
2, 4 -D + MCPP + Dicamba Ø Bayer products èSouthern Weed Killer Concentrate èSouthern Weed Killer Ready-to-Spray Ø Hose-end product, 32 fl. oz. èSouthern Weed Killer Ready-to-Spray Ø Has spray dye indicator, squirt-mist bottle Ø 24 fl. oz. èSouthern Weed Killer Ready-to-Spray Ø Has spray dye indicator, squirt-mist product Ø 1. 0 gallon
2, 4 -D + MCPP + Dicamba Ø Bayer products èDo not use on carpetgrass, ‘Floratam’ St. Augustinegrass èUse ½ rates on centipede and St. Augustine of concentrate product èDo not reseed for 3 to 4 weeks after application
MCPP + 2, 4 -D + Dicamba Ø Weed-B-Gon Lock’ N Spray Lawn Weed Killer èHose-end product Ø Ortho Weed-B-Gon Lawn Weed Killer 2 èConcentrate èLow rate on centipede, St. Augustine èHigh rate on other turfgrasses èDo not use on carpetgrass èLess injurious on St. Augustine and centipede than 2, 4 -D+MCPP+dicamba
Homeowner - Triclopyr Ø Ortho Brush-B-Gon - brush control Ø Enforcer Brush Killer - brush control Ø Ortho Weed-B-Gon Chickweed, Clover & Oxalis Killer è tall fescue, bluegrass, zoysia. Triclopyr effective for violets, poison ivy, blackberry, cut stumps, most brush species. Ø Reseeding restrictions - 3 weeks
Homeowner - Nutsedge Herbicides Ø Image - imazaquin èreseeding restriction: 6 weeks Ø Manage - halosulfuron èreseeding restriction: 4 weeks Ø Bentazon èBasagran T/O, Hi-Yield Basagran èreseeding restriction: 0 week
Homeowner - Selective POST Grass Control Herbicides Ø Sethoxydim - Vantage, Hi-Yield Poast èreseeding restriction: not listed Ø Fluazifop - Dexol Grassout Greenlight Bermudagrass Killer Ortho Grass-B-Gon - reseeding restriction: 2 months
Homeowner - Selective POST Grass Control Herbicides Ø MSMA - Bermudagrass Weeder, Greenlight MSMA Crabgrass Killer, Hi-Yield 529 Crabgrass Killer, Rigos Best Crabgrass Killer Ø DSMA - Greenlight DSMA Crabgrass Killer Ø CAMA – Weed-B-Gon Crabgrass Killer
Homeowner - Selective POST Grass Control Herbicides Ø MSMA Ø DSMA Ø CAMA Ø Reseeding restriction: none Ø Do not use on St. Augustine, centipede, carpetgrass
MSMA+ 2, 4 -D + MCPP + Dicamba Ø Bayer products èAll-in-One Weed Killer for Lawns èConcentrate, 32 fl. oz. èKy. Bluegrass - 5. 0 fl. oz/1, 000 sq. ft. , < 80 F. èBermuda, zoysia – 7. 0 fl. oz. /1, 000 sq. ft. , < 90 F. èTall fescue – 3. 0 fl. oz/1, 000 sq. ft. , < 80 F. èDo not use on St, Augustine, centipede, carpetgrass èDo not reseed for 3 to 4 weeks
MSMA+ 2, 4 -D + MCPP + Dicamba Ø Bayer products èAll-in-One Weed Killer for Lawns ØReady-to-Use, 24 fl. oz. , spray dye indicator ØReady –to-Use, 1. 0 gal. , spray dye indicator èDo not reseed for 3 to 4 weeks èDo not use on St, Augustine, centipede, carpetgrass
MSMA+ 2, 4 -D + MCPP + Dicamba Ø Bayer products èTough Weed Killer for Lawns (concentrate) èContains more MSMA, 2, 4 -D, MCPP, dicamba than Bayer All-in-One products èKy. Bluegrass - 3. 0 fl. oz/1, 000 sq. ft. , < 80 F. èBermuda, zoysia – 4. 0 fl. oz. /1, 000 sq. ft. , < 90 F. èTall fescue – 3. 0 fl. oz/1, 000 sq. ft. , < 80 F. è Do not reseed for 3 to 4 weeks èDo not use on St, Augustine, centipede, carpetgrass
MSMA+ 2, 4 -D + MCPP + Dicamba Ø Bayer products èTough Weed Killer for Lawns (Ready-to-Use) èContains more MSMA, 2, 4 -D, MCPP, dicamba than Bayer All-in-One products èKy. bluegrass , bermuda, zoysia, tall fescue Do not reseed for 3 to 4 weeks èDo not use on St, Augustine, centipede, carpetgrass
Homeowner - Atrazine Ø Purge Ø Hi-Yield Atrazine Ø Scotts Super Bonus S: 21 -3 -3, 0. 6% atrazine Ø Scotts St. Augustine Weed Control + Fertilizer 26 -3 -3, 1. 0% atrazine - reseeding restriction: 4 months Ø Excellent choice for St. Augustine, centipede, carpetgrass
Homeowner - Non-Residual, Nonselective Herbicides Ø Diquat èNext Day èAce Grass and Weed Killer Ø Enforcer Roots & All – èpelargonic acid + fluazifop + MCPP + 2, 4 -D èreseeding restriction - 3 to 4 weeks
Homeowner - Non-Residual, Nonselective Herbicides Ø Glyphosate è Roundup, Kleeraway, Sure. Shot Foam Ø Glufosinate - Finale èreseeding restriction: none Ø Nature’s Glory Weed & Grass Killer èAcetic acid
Homeowner - Non-Residual, Nonselective Herbicides Ø Scythe, Sharpshooter - pelargonic acid èreseeding restriction: none Ø Greenlight Grass & Weed Killer sodium cacodylate + dimethylarsinic acid - reseeding restriction: none
Homeowner Residual, Nonselective Herbicides Ø Ortho Ground. Clear Triox Total Vegetation Killer 1 - 0. 5% glyphosate + 0. 08% imazapyr Ø Ortho Ground. Clear Triox Total Vegetation Killer - 1. 86% prometon è(also sold as Com-Pleet Ø Prometon = Pramitol: Imazapyr = Arsenal
UGA Turf Weed Science Web. Site Ø www. georgiaturf. com Ø Currently designed for professionals Ø 437 color photos of 193 turf weeds Ø Current UGA professional recommendations Ø 35+ popular articles - more on the way Ø Links to turf herbicide companies labels and MSDS, weather, and other turfgrass sites Agt 01. ppt
UGA Weed Science Web Site Ø Gaweed. com Ø Covers all crops including turf and ornamenals Ø Weed Identification Ø Currrently has over 25 Powerpoint slide sets that can be downloaded Ø USE IT!!!!!!!!
- Slides: 35