University of Maryland Extension

Dollar Spot - Lawns

dollar spot in a zoysia lawn

Dollar spot in zoysia. Photo by K. Mathias, U. of MD

Dollar spot is a common fungal disease of turfgrasses in Maryland throughout the growing season.  Dollar spot affects all species of turfgrass grown in Maryland, including zoysia. Tall fescue appears to be resistant.

Symptoms

Hourglass-shaped lesions, extending across the blade with whitened centers and dark borders. Produces numerous two- to six-inch spots.


white dollar spot lesion
Dollar spot on zoysia

Conditions favoring disease

  1. Occurs late spring through fall. Causes most damage in June-July.
  2. Usually more prevalent on under-fertilized turf.
  3. Drought, thatch, and compacted soil increase disease susceptibility.

Control

  1. Follow recommended fertilizer schedule.
  2. Aerate and eliminate thatch in the lawn.

**University of Maryland Extension Lawn Fertilizer Schedule for Home Lawns**

Section: 
Home and Garden Information Center
We embody the University's land-grant mission with a commitment to eliminate hunger, preserve our natural resources, improve quality of life, and empower the next generation through world-class education.
Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2020. Web Accessibility

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your local University of Maryland Extension Office.