WSU Extension

Hortsense

Lawn and Turf
 
Disease
2,4-D damage 
Algae 
Anthracnose/Basal crown rot 
Brown blight 
Brown patch 
Curvularia blight (Fading out) 
Dog injury 
Dollar spot 
Fairy ring and mushrooms 
Leaf spot 
Microdochium patch (Pink snow mold) 
Moss 
Necrotic ringspot 
Powdery mildew 
Pythium crown and root rot 
Red thread 
Rusts 
Septoria leaf spot (Tip blight) 
Slime molds 
Take-all patch 
Thatch 
Typhula blight (Gray snow mold) 
Yellow patch 
Insect
Ants 
Billbugs 
Chinch bugs 
Cutworms 
European crane fly 
Leafhoppers 
Moles 
Sod webworm 



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Caption: Take-all patches
Photo by: R.S. Byther
  
Lawn and Turf : Take-all patch
(revision date: 6/22/2015)


Biology
Take-all patch is a fungal disease common on bentgrass, particularly on young plants. Symptoms first appear in late spring as small, brown, dead areas of grass approximately 2" in diameter. The patches continue to enlarge, often reaching a yard or more in diameter over a period of years. Roots and crowns are killed. The centers of killed areas may be invaded by weedy species, resulting in a doughnut-shaped dead ring. Mixed grass plantings may show thinned areas rather than distinct dead patches. The fungus survives in infected tissues and debris and can be spread by contaminated equipment. Take-all patch is most severe on 1- to 4-year-old bentgrass plantings, especially those on sandy soils. Bluegrasses and fescues are rarely infected.
Management Options

Non-Chemical Management
  • Use bentgrass in mixture with take-all resistant grasses such as perennial ryegrasses or fescues.
  • Rake and reseed diseased areas.
  • Provide proper culture. Adequate, balanced fertilization helps prevent disease. Ammonium sulfate is the best nitrogen source for suppressing take-all.
  • Maintain proper soil acidity. Alkaline or recently limed soils have a higher disease incidence.
  • Provide good drainage. Remove thatch and aerify as needed.
  • Water in the morning so grass can dry quickly. Deep, infrequent waterings are best. Do not overwater.
  • For more information on proper care of lawns see EB0482E, Home Lawns.
Select non-chemical management options as your first choice!

Chemical Management

None recommended

Images

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Caption: Take-all patches
Photo by: R.S. Byther
Caption: Take-all patches
Photo by: R.S. Byther
Caption: Take-all patch
Photo by: C.R. Foss
Caption: Take-all patch fruiting bodies
Photo by: C.R. Foss
Caption: Take-all patch hyphae under microscope
Photo by: C.R. Foss