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New Herbicide Options for Athletic Fields

AUTHOR
Tim R. Murphy
The University of Georgia

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TABLE OF CONTENTS
  1. New Herbicide Options for Sports Fields
  2. Bermudagrass - The Big Three
  3. Newer Herbicides
  4. Newer Herbicides
  5. TranXit - Griffin LLC
  6. Weeds Controlled by TranXit
  7. TranXit
  8. Georgia Experiments - Griffin
  9. Herbicide Rates
  10. Perennial ryegrass density
  11. Poa annua control
  12. TranXit did not injure Tifway bermudagrass applied ....
  13. Manor, Blade
  14. Corsair - Riverdale
  15. Overseeded Bermudagrass
  16. New Poa annua Options in Overseeded Bermudagrass
  17. Revolver - Bayer Environ. Sciences
  18. Revolver
  19. Weeds Controlled by Revolver
  20. Goosegrass Control - Griffin
  21. Goosegrass control with Revolver. 2002
  22. Poa annua Control - Griffin
  23. Effect of Revolver on Ryegrass Establishment. 2002/3
  24. Effect of Revolver on Poa annua control. 2002/3
  25. Monument - Syngenta
  26. Monument
  27. Weeds Controlled by Monument
  28. Monument Transition Project - 2001
  29. Monument - One Appl. (5/16/01)
  30. Monument - Two Appl. (5/16 + 6/14/01)
  31. Monument - One Appl. (5/16/01)
  32. Monument - Two Appl. (5/16 + 6/14/01)
  33. Photo
  34. Other Herbicides in Development
  35. Flazasulfuron (Katana) -ISK BioSciences
  36. Sulfosulfuron (Battalion)- Monsanto
  37. Fluroxypyr (Spotlight) - DowAgroSciences
  38. New PBI Gordon Broadleaf Herbicides
  39. Carfentrazone
  40. Why add carfentrazone?
  41. White Clover Control - Griffin - 2001
  42. Tall Fescue Injury - Griffin - 2001
  43. Common Bermuda Injury - Griffin - 2001
  44. New PBI Gordon Broadleaf Herbicides
  45. PowerZone & SpeedZone Formulations
  46. PowerZone & SpeedZone Formulations
  47. Drive - BASF
  48. Drive - BASF
  49. Practical Tips
  50. Georgia Turf Website



SLIDE CONTENTS
  1. “New” Herbicide Options for Sports Fields Tim R. Murphy The University of Georgia 2003 GTA Conference
  2. Bermudagrass - The Big Three Non-Overseeded Simazine (Princep, Wynstar, etc.) MSMA or DSMA 2,4-D (possibly a 2-way or three-way)
  3. “Newer” Herbicides TranXit - SU Manor - SU Corsair - SU Revolver - SU Monument – SU Velocity – Not an SU, but similar MOA, not currently labeled on sports fields
  4. “Newer” Herbicides Speed Zone Broadleaf Speed Zone - Southern Power Zone Broadleaf Drive (not real new, but underutilized0
  5. TranXit – Griffin LLC Poa control before overseeding DNAs, Dimension, Kerb, Rubigan Poa control in non-overseeded bermuda, centipede and zoysia Triazines, Kerb, Diquat Spring transition aid in overseeded bermuda Manor, Revolver, Monument, Kerb, Embark LABELED on SPORTS FIELDS
  6. Weeds Controlled by TranXit annual bluegrass ryegrass spp. little barley tall fescue blue-eyedgrass rough bluegrass common chickweed shepherd’s-purse henbit field pansy cutleaf eveningprimrose spotted spurge pennywort (dollarweed)
  7. TranXit Rimsulfuron 25DF Sulfonylurea 2.0 to 4.0 ozs. product/acre Chemically degraded, more rapid under alkaline or acid conditions T1/2 in soil is 1.7 to 4.3 days
  8. Georgia Experiments - Griffin ‘Tifway’ bermudagrass, 0.75 in. ht. Overseeded Oct. 17, 2000 ‘TourStar’ perennial ryegrass blend Irrigated site 25 gpa
  9. Herbicide Rates TranXit – 1, 2, 4 and 8 oz./acre Dimension 1EC – 2.0 qts./acre Barricade 65DG – 0.75 lbs./acre Balan 2.5G – 80 lbs./acre
  10. Perennial ryegrass density. * * *
  11. Poa annua control. * * *
  12. TranXit did not injure Tifway bermudagrass applied: 4, 2 or 1 wk in advance of overseeding Tank-mixed with Rubigan Applied after Dimension, Barricade or Balan were applied 6 WBO
  13. Manor, Blade Metsulfuron 60 DF Excellent option for ‘Pensacola’ bahiagrass and broadleaf control in warm-season turfgrasses Do not use on bahiagrass Low rate - < 1.0 oz. product/acre Use with nonionic surfactant LABELED on SPORTS FIELDS
  14. Corsair - Riverdale Chlorsulfuron 75% Used primarily for spot control of clumpy tall fescue in bermuda - works slowly Repeat application in 60 d LABELED on SPORTS FIELDS
  15. Overseeded Bermudagrass Preemergence options for Poa annua Kerb - 60 to 90 days or charcoal Dimension – 8 wks Barricade – 8 wks Balan – low rate, 6 weeks Rubigan, Patchwork – cost limits use to greens Prograss – greenup issue
  16. New Poa annua Options in Overseeded Bermudagrass TranXit – rimsulfuron, t1/2 = 1.7 to 3.4 days Revolver – foramsulfuron, t1/2 = 1 to 12 days LABELED ON SPORTS FIELDS????????? Persistence is less in acid than alkaline soils
  17. Revolver – Bayer Environ. Sciences Foramsulfuron - 0.19SC, POST First liquid sulfonylurea, no NIS required 4.4 to 26.2 fl. ozs. product/acre (use high rate for centipede suppression and goosegrass) t1/2 in soil is 1 to 12 days Chemically degraded, more rapid under alkaline or acid conditions
  18. Revolver Poa control before overseeding [2 WBS] DNAs, Dimension, Kerb, Rubigan, TranXit Poa control in non-overseeded bermuda and ‘Meyer’ zoysia Triazines, Kerb, Diquat Spring transition aid in overseeded bermuda Manor, TranXit, Monument, Kerb, Embark NON-RESIDENTIAL USE ONLY
  19. Weeds Controlled by Revolver annual bluegrass ryegrass spp. little barley tall fescue rough bluegrass bentgrass henbit bentgrass goosegrass
  20. Goosegrass Control - Griffin ‘Tifway’ bermudagrass, 0.75 in. ht. Irrigated site 25 gpa Revolver: 17.4, 26.2 fl. ozs./ac MSMA + Sencor: 2.7 pts. + 2.7 ozs./ac Illoxan: 1.4 qts./ac Applied 6-12 and 6-19, 2002 2 to 3 tiller goosegrass
  21. Goosegrass control with Revolver. 2002.
  22. Poa annua Control - Griffin ‘Tifway’ bermudagrass, 0.625 in. ht. Irrigated site 25 gpa Revolver: 8.8, 17.4 fl. ozs./ac – appl. 2 or 1 WBS TranXit: 2.0 oz./ac – appl. 2 WBS Prograss: 1.0 gal./ac – 6 WPS “Sunrise Primo’ seeded 11-01-2002
  23. Effect of Revolver on Ryegrass Establishment. 2002/3.
  24. Effect of Revolver on Poa annua control. 2002/3.
  25. Monument– Syngenta Trifloxysulfuron-sodium 75 WDG, POST 0.1 to 0.56 ozs. product/acre (use higher rates for sedges and Poa annua) t1/2 in soil is 5 to 15 days Chemically degraded, more rapid under alkaline or acid conditions Add NIS at 0.25% v/v
  26. Monument Poa control in non-overseeded bermuda and zoysia Triazines, Kerb, Diquat, Revolver, TranXit Spring transition aid in overseeded bermuda Manor, TranXit, Monument, Kerb, Embark, Revolver Broadleaf weed and sedge control (winter and summer) NON-RESIDENTIAL USE ONLY
  27. Weeds Controlled by Monument annual bluegrass ryegrass spp. little barley rough bluegrass torpedograss tall fescue henbit dichondra Va. Buttonweed nutsedge (yellow and purple) green kyllinga carpetweed spotted spurge
  28. Monument Transition Project - 2001 GA Station Perennial ryegrass – ‘Sunrise Primo’ ‘Tifway’ bermudagrass 0.75 in. clip height 2 appl. – 5/16 and 6/14 25 gpa 0.25% v/v NIS with all herbicides except Kerb
  29. Monument – One Appl. (5/16/01)
  30. Monument – Two Appl. (5/16 + 6/14/01)
  31. MONUMENT – One Appl. (5/16/01) MON 0.1 MON 0.3 Kerb 1.5 UTC
  32. Monument – Two Appl. (5/16 + 6/14/01) MON 0.1 MON 0.3 TranXit 2 UTC
  33. Turf17-03: Photo April 9, 2003, NIS left, MSO right Velocity, 1.3 fb 1.3 oz/ac 2/18 + 3/03 3/03 + 3/21
  34. Other Herbicides in Development Flazasulfuron (Katana) -ISK BioSciences Sulfonylurea Sulfosulfuron (Battalion) – Monsanto Sulfonylurea Fluroxypyr (Spotlight) – DowAgroSciences Pyridine
  35. Flazasulfuron (Katana) -ISK BioSciences Bermuda, zoysia, centipede St. Augustine and cool-seasons not tolerant Spring transition aid, seedling crabgrass (<4-lf), nutsedge and kyllinga, numerous broadleaf weeds
  36. Sulfosulfuron (Battalion)- Monsanto Bermuda (most tolerant), St. Augustine, centipede, zoysia Cool-season tolerance is low and highly rate dependent Spring transition aid, nutsedges, kyllinga
  37. Fluroxypyr (Spotlight) - DowAgroSciences Cool-season tolerance is good Warm-season tolerance is low and highly rate dependent May see as an ingredient in other 2- and 3-way broadleaf control herbicides
  38. New PBI Gordon Broadleaf Herbicides aEster
  39. Carfentrazone Triazolinone family Post, contact activity, cell membrane disrupter Rapidly absorbed, only limited translocation No soil activity t 1/2 - 2.5 to 4 d non-mobile Negligible volatility
  40. Why add carfentrazone? Better activity in cool weather Faster development of control symptoms hours vs. days complete control in 7 to 14 days Better activity on spurges
  41. White Clover Control – Griffin - 2001
  42. Tall Fescue Injury – Griffin - 2001
  43. Common Bermuda Injury – Griffin - 2001
  44. New PBI Gordon Broadleaf Herbicides
  45. PowerZone & SpeedZone Formulations Repeat appl. in 2 to 6 wks if needed Newly seeded delay appl. until after 2nd mowing Newly sodded, sprigged or plugged delay appl. for 3 to 4 weeks Avoid green-up appls. on St. Aug.
  46. PowerZone & SpeedZone Formulations Avoid appl. at air temps. > 90 F. Can reseed 2 weeks after application Do not mow 1 to 2 d before or after application Needs 24 hr rain-free period
  47. Drive - BASF Quinclorac 75 DF Add crop oil concentrate (2.0 pts./acre) Labeled on tall fescue, zoysiagrass, bermudagrass established, at seeding/sprigging, during “grow-in”
  48. Drive - BASF Controls crabgrass, white clover, hop clovers, speedwell, dollarweed Torpedograss - requires 2 to 3 applications Will not control goosegrass or annual bluegrass Use with extreme caution near tomatoes, bell peppers, etc.
  49. Practical Tips Use only labeled herbicides Get the right equipment Train your applicator Calibrate all equipment Control weeds during the off-season or off-times
  50. www.georgiaturf.com A pretty d--- good web page for turfgrasses!!