Accent Landscape Services | Lawn Care in Plano, Allen, McKinney, Frisco, The Colony, Murphy, Texas Accent Landscape Services | Lawn Care in Plano, Allen, McKinney, Frisco, The Colony, Murphy, Texas
Accent Landscape Services | Lawn Care in Plano, Allen, McKinney, Frisco, The Colony, Murphy, Texas
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Take-all Root Rot

This disease is caused by a fungus. It may be mistaken for chinch bug damage or drought symptoms.

Symptoms are circular to irregular in shape and may resemble symptoms of brown patch. Patches of diseased St. Augustinegrass or centipede at first appear yellowish green and then die. As diseased stolons die, severe thinning occurs in areas of several feet to even entire lawns. It is important to remember that this is a root disease and by the time leaf symptoms are noticeable, the root systems have already been severely damaged. Another key symptom is the ease of lifting stolons from the soil, since the roots are essentially gone.

You can lessen the disease by following cultural practices that reduce turf stresses. Eliminate excessive irrigation. Avoid applying high rates of lime, and maintain a soil pH of 5.5 to 6.0. Mow at recommended heights and intervals with a sharp blade. Avoid ammonium nitrate fertilizer, and use acidifying fertilizers such as ammonium sulfate or slow-release urea. Maintain recommended levels of potassium. Do not use root-inhibiting herbicides on infected lawns.

Few fungicides provide acceptable control, but sterol inhibitors such as myclobutanil or triadimefon may help, as well a stobulurin fungicide such as trifloxystrobin, or azoxystrobin.

 

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Fertilizing  Weed Control  Lawn Mowing  Watering  Aeration  Soil Testing  Fire Ant Control  Chinch Bugs  Two-lined Spittlebugs  Fall Armyworms  White Grubs  Mole Crickets  Snails and Slugs  Sod Webworms  Ticks and Fleas  Lawn Pest Control  Lawn Diseases  Dollar Spot  Fairy Rings  Gray Leaf Spot  Brown Spot  Leaf Blotch  Nematodes  Rust  Slime Molds  Root Rot  Ornamental and Tree Diseases  Renovating Your Lawn  Winter Grasses  Common Bermudagrass  Bermudagrass  Vegetatively Propagated Grasses  Centipedegrass  St. Augustine Grass  Zoysiagrass  Carpetgrass  Bahiagrass  Ground Covers  Planting Time  Soils 
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