Lawn Disease – Take All Root Rot

(Gaeumannomyces graminis var. graminis)

Take All Root Rot is a turfgrass disease caused by Gaeumannomyces graminis var. graminis. Take All Root Rot commonly affects lawns in the southeastern United States, with damage occurring from early to late summer.     

Identifying Take All Root Rot -

Initial symptoms of Take All Root Rot appear as yellowing or light green circular patches that can range in size from a few inches to a few feet in diameter. Turfgrass roots will have a whitish appearance with sporadic black lesions. stolons and rhizomes may have black lesions as well.

Root Rot is a disease that affects the roots of the plant, and therefore limits its ability to absorb water and vital nutrients effectively.

If the turfgrass is in good growing condition and under little stress, symptoms may never be observed.

Conditions for Take All Root Rot Infection -

Take All Root Rot can only lead to an infection in your lawn if all of the following conditions are present:

1. Pathogen – Gaeumannomyces graminis var. graminis

2. Host – Bentgrass, bermudagrass or St. Augustinegrass

3. Environment – Southeastern climates during months of high rainfall

Take All Root Rot Control -

Cultural disease control practices create favorable conditions for a healthy lawn, and often create unfavorable conditions for the growth of Take-all Root Rot. Environmental conditions cannot be changed, but cultural practices performed by the homeowner can be modified to lessen the chance of extensive damage from Take-all Root Rot. Scotts LawnService can help determine a plan for preventing and controlling Take All Root Rot in your lawn.

For Take All Root Rot control and treatment, Scotts LawnService recommends the following cultural control tips:

  • Raise lawn mowing height during times when environmental conditions are conducive for disease
  • Apply high levels of potassium along with a balanced fertility program
  • Use slow release forms of nitrogen

Scotts LawnService has professional products that can prevent and control lawn diseases when cultural control practices are not effective.

Scotts LawnService is the trusted industry leader for professional quality lawn care. Our exclusive lawn care products include premium grass seeds and professional-grade fertilizers; our lawn service teams are comprised of highly trained, industry-certified professionals. Contact a representative today for Take All Root Rot control options available in your area and to learn how you can enjoy a lush, thicker lawn that only Scotts LawnService can deliver.