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2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
2011 Basics of Weed Control
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2011 Basics of Weed Control

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Transcript

  • 1. J.T. Brosnan, Ph.D. T.J. Samples, Ph.D.UT Lifetime Learning Program February 18th, 2010 Knoxville, TN
  • 2. Identification
  • 3. http://www.tennesseeturfgrassweeds.org
  • 4. http://www.tennesseeturfgrassweeds.org
  • 5. http://www.tennesseeturfgrassweeds.org
  • 6. Wild Garlic Perennial from bulb Hollow, cylindrical stems Foliage aromatic when crushed
  • 7. Star ofBethlehem Sob pic Perennial from bulb Hollow stems Foliage NOT aromatic when crushed
  • 8. Whitemid-rib
  • 9. Henbit Square Stem HairyNo Petiole onUpper Portions
  • 10. PurpleDeadnettle Henbit, deadnettle pics Petioles Purple in color when mature
  • 11. Common Chickweed Chickweed pic Wet, shady areas Egg shaped leaves
  • 12. Mouse-earChickweed
  • 13.  Rough, athletic fields, home lawn Annual Bluegrass
  • 14. Photo by Bob Raley
  • 15. Photo by Bob Raley
  • 16. What are the products?TRADE ACTIVENAME INGREDIENT
  • 17. What are the products ?TRADE NAME ACTIVE INGREDIENT
  • 18. What Now??? Glyphosate (Roundup) •  < 1 pt/A as broadcast •  COMPLETELY DORMANT BERMUDAGRASS •  Combine with PRE?? Phenoxy herbicides •  Three-Way/Weed-B-Gone on TF and B •  Dismiss for SOB No poa products for homeowners  Revolver for LCOs on B
  • 19. Spot Treatments Follow the label 1-1.5% solutionWILL KILL DESIRABLE VEGETATION
  • 20. PreemergenceCrabgrass Control
  • 21. Photo by: D.F. Lewis
  • 22. Photo by: D.F. Lewis
  • 23. Hairy CrabgrassSmooth Crabgrass
  • 24. PREEMERGENCE
  • 25. PREEMERGENCEBEFORE
  • 26. PREEMERGENCEBEFORE YOU CAN SEE IT
  • 27.   Soil temp ≥55°Ffor 3 consecutivedays and nights
  • 28. All PRE products effective (>90% control) in 2010 for up to 100 days after application
  • 29. What are the products?TRADE NAME ACTIVE INGREDIENTDimension dithiopyrPendulum pendimethalinBarricade prodiamine Ronstar oxadiazon**
  • 30. Formulations
  • 31. At least ½” irrigation within 24 hrs of application
  • 32.  Seeding picDO NOT APPLY IF YOU PLAN TO SEED
  • 33. I missed mycrabgrasstiming!!!!
  • 34.   Dimension  Tenacity  Acclaim Extra  Fusilade II  Drive XLR8  MSMA  MSMA + Sencor
  • 35. Cultural Practices to Increase Turf Density
  • 36. AIR
  • 37. Fertility Bermudagrass lawns •  1 lb N/1000 sq. ft •  Every month of growing season Tall fescue lawns •  ½ lb N/1000 sq. ft.   APRIL, MAY •  1 lb N/1000 sq. ft.   SEPTEMBER, OCTOBER, NOVEMBER
  • 38. Without Nitrogen With Nitrogen Photo Courtesy of M.J. Schlossberg
  • 39. MOW, MOW, MOW !!
  • 40. Indicator Weeds
  • 41. Goosegrass
  • 42. Prostrate Knotweed
  • 43. Good Balance of Air and Water
  • 44. Improve Soil Conditions
  • 45. Move theTraffic Pattern
  • 46. White Clover clover
  • 47. Yellow Nutsedge Nutsedge Bermuda infestation pic
  • 48. Install Drainage ?
  • 49. Over Irrigating ?
  • 50. Summary Identification Product Selection Cultural Practices Indicators Resources
  • 51. http://www.tennesseeturfgrassweeds.org
  • 52. http://www.tennesseeturfgrassweeds.org
  • 53. http://www.tennesseeturfgrassweeds.org
  • 54. http://www.tennesseeturfgrassweeds.org
  • 55. http://www.tennesseeturfgrassweeds.org
  • 56. Questions?

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