Turfgrass Rx: Tips for Renovating Turfs in the Fall

Jim Brosnan and Tom Samples Plant Sciences Department Turfgrass Rx: Tips for Renovating Turfs in the Fall

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

Why Do Turfs in Tennessee Need To Be Renovated?
Compacted Soil
Heat
Drought
Too Much Thatch
Turfgrass Pests

Moist, Clayey Soils are Very Prone to Compaction

Compacted Soil
Heat
Drought
Too Much Thatch
Turfgrass Pests

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

Weather Water
Turfgrasses May Use from 1/10 th to 3/10 th Inch of Water Daily.

Drought Tolerance Cool-season Turfgrasses

Compacted Soil
Heat
Drought
Too Much Thatch
Turfgrass Pests

More Than ½ Inch of Thatch is Considered Excessive

Low High Thatching Tendency of Turfgrasses Bermudagrass St. Augustinegrass Zoysia Fine Fescues Kentucky Bluegrass Perennial Ryegrass Tall Fescue

Compacted Soil
Heat
Drought
Too Much Thatch
Turfgrass Pests
Diseases, Insects and Weeds

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

White Grubs Photo Courtesy of Dr. Frank Hale

Scarab Beetles Photos Courtesy of Dr. Dave Shetlar, The Ohio State University

Japanese Stiltgrass Smooth Crabgrass Summer Annual Weed Grasses Goosegrass

Common Purslane Summer Annual Broadleaf Weeds Prostrate Spurge

Common Chickweed Winter Annual Broadleaf Weeds Purple Deadnettle

Dallisgrass Nimblewill Perennial Weed Grasses

Perennial Broadleaf Weeds Wild Violet Ground Ivy

Yellow Purple Perennial Sedges Yellow Nutsedge

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

Renovating Turf

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

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

A Turf can be Renovated without Using a Non-selective Herbicide if 50 Percent of the Ground is Covered with Turfgrasses Renovating Turf

Renovating Turf

Thank You Go Vols www.tennesseeturf.utk.edu www.tennesseeturfgrassweeds.org

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Turfgrass Rx: Tips for Renovating Turfs in the Fall

by University of Tennessee Office of Alumni Affairs on Oct 08, 2009

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Turfgrass Rx: Tips for Renovating Turfs in the Fall — Presentation Transcript