Necrotic ring spot is a lawn disease that can cause major damage if not properly identified and managed. It typically develops in spring, when humidity is high and temperatures remain cool. However, symptoms tend to appear—and damage becomes more visible—during periods of heat and drought.
Identification and symptoms
Necrotic ring spot presents as yellowish rings on the lawn, often with a patch of greener grass in the center. The blades within the ring gradually yellow, and a whitish edge may form around the affected area. This disease mainly attacks the roots, leaving the turf weak and easy to pull up—similar to damage caused by white grubs. In severe cases, the rings can merge, significantly impacting the lawn’s appearance and health.
Conditions that favor the disease
Necrotic ring spot thrives in compacted soil and areas with thick thatch buildup, which both limit root development. Poor aeration and inadequate drainage also worsen the problem and encourage the spread of the disease.
Control and prevention
There is no curative treatment for necrotic ring spot. However, several best practices can help reduce its impact and protect your lawn:
- Proper mowing: Keep grass slightly shorter than usual—around 5 cm—when weather conditions allow.
- Smart watering: Water frequently but lightly, allowing the lawn to dry completely between waterings to avoid excessive moisture.
- Aeration and dethatching: Improve root development and reduce favorable conditions for the disease by aerating the soil and removing excess thatch.
- Repairing damaged areas: At the first signs of symptoms, remove affected patches, refill with fresh soil, and overseed using a grass seed mix suited to your site conditions.
Long-term lawn care strategies
Although necrotic ring spot is a challenging disease, its effects can be minimized through consistent, well-adapted lawn care. Proper irrigation management, regular aeration, and quick action when symptoms appear are key to keeping your lawn healthy throughout the season.
Professional support for prevention
Professional services like those offered by your Nutrite Expert provide a proactive approach to managing necrotic ring spot. With thorough dethatching, soil aeration, and overseeding using the right grass varieties, these preventive treatments promote healthy root systems and reduce the risk of disease spread.
Contact your Nutrite Expert today for fast and effective lawn care support.
