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Turfgrass Rx: Tips for Renovating Turfs in the Fall

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A presentation by Jim Brosnan and Tom Samples of the University of Tennessee Plant Sciences Department

A presentation by Jim Brosnan and Tom Samples of the University of Tennessee Plant Sciences Department

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  • 1. Jim Brosnan and Tom Samples Plant Sciences Department Turfgrass Rx: Tips for Renovating Turfs in the Fall
  • 2. Renovation
    • A Turf Management Practice for Converting an Existing Stand of Weeds or Mixed Grass Species, or Both, into a Turf of Acceptable Species and Quality.
    • D.L. Hanson, C.L. Elmore and R.L. Baldwin
    • The Process of Killing the Existing Turf on an Area and Replacing It with New Grass without Grading, Tilling and Other Processes Normally Associated with the Establishment of Grass. http://people.cpcc.edu/~hij102e/Turf%20Grass%20Definitions.doc
  • 3. Why Do Turfs in Tennessee Need To Be Renovated?
    • Compacted Soil
    • Heat
    • Drought
    • Too Much Thatch
    • Turfgrass Pests
  • 4. Moist, Clayey Soils are Very Prone to Compaction
  • 5. Why Do Turfs in Tennessee Need To Be Renovated?
    • Compacted Soil
    • Heat
    • Drought
    • Too Much Thatch
    • Turfgrass Pests
  • 6. Weather
    • Tall Fescue and Kentucky Bluegrass Usually Grow Best at Air Temperatures from 60 to 75 Fahrenheit.
    • Bermudagrass and Zoysia Usually Grow Best at Air Temperatures from 80 to 95 Fahrenheit.
    Air Temperature
  • 7. Weather Water
    • Turfgrasses May Use from 1/10 th to 3/10 th Inch of Water Daily.
  • 8.  
  • 9. Drought Tolerance Cool-season Turfgrasses
  • 10.  
  • 11. Why Do Turfs in Tennessee Need To Be Renovated?
    • Compacted Soil
    • Heat
    • Drought
    • Too Much Thatch
    • Turfgrass Pests
  • 12. More Than ½ Inch of Thatch is Considered Excessive
  • 13. Low High Thatching Tendency of Turfgrasses Bermudagrass St. Augustinegrass Zoysia Fine Fescues Kentucky Bluegrass Perennial Ryegrass Tall Fescue
  • 14. Why Do Turfs in Tennessee Need To Be Renovated?
    • Compacted Soil
    • Heat
    • Drought
    • Too Much Thatch
    • Turfgrass Pests
    Diseases, Insects and Weeds
  • 15. Brown Patch of Tall Fescue
    • Look for “Smoke Rings” of Fungal Growth Early While Dew Is Present
    • Later Look for Large Bleached Lesions on Leaf Blades
    Photos Courtesy of Dr. Alan Windham
  • 16. White Grubs Photo Courtesy of Dr. Frank Hale
  • 17. Scarab Beetles Photos Courtesy of Dr. Dave Shetlar, The Ohio State University
  • 18. Japanese Stiltgrass Smooth Crabgrass Summer Annual Weed Grasses Goosegrass
  • 19. Common Purslane Summer Annual Broadleaf Weeds Prostrate Spurge
  • 20. Common Chickweed Winter Annual Broadleaf Weeds Purple Deadnettle
  • 21. Dallisgrass Nimblewill Perennial Weed Grasses
  • 22. Perennial Broadleaf Weeds Wild Violet Ground Ivy
  • 23. Yellow Purple Perennial Sedges Yellow Nutsedge
  • 24. Renovating Turf Turf can be Renovated without Using a Non-selective Herbicide if 50 Percent or More of the Ground is Covered with Turfgrass Plants
  • 25. Renovating Turf
  • 26. Renovating Turf
  • 27.
    • Apply a Non-selective Herbicide
    • Wait an Appropriate Amount of Time
    • Remove Excess Organic Material
    • Broadcast Fertilizer and Lime According to Soil Test
    • Lightly Rake to Mix Fertilizer and Lime with Soil
    Limited-tillage Turf Renovation < 50 Percent Turfgrass Cover
  • 28.
    • Uniformly Broadcast / Plant Seeds
    • Lightly Rake the Planting Bed Again to Mix Seeds
    • with Soil
    • Apply Mulch, as Needed, to Prevent Soil Erosion
    • Irrigate to Supply Water to Developing Seedlings
    Limited-tillage Turf Renovation < 50 Percent Turfgrass Cover
  • 29. A Turf can be Renovated without Using a Non-selective Herbicide if 50 Percent of the Ground is Covered with Turfgrasses Renovating Turf
  • 30. Renovating Turf
  • 31. Renovating Turf
  • 32.  
  • 33. Thank You Go Vols www.tennesseeturf.utk.edu www.tennesseeturfgrassweeds.org

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