Skip to content

Bermuda grass · Cynodon dactylon

Why are there spots on my Bermuda grass?

Small, circular bleached patches are a classic sign of fungal activity. Inspect the grass blades closely for tiny lesions to confirm if it is a disease.

Check these first

  1. Look for small circular patches in the lawn.
  2. Check if the spots have a dark border.
  3. Examine your watering schedule to see if you are watering at night.

Likely causes

  1. Dollar spot

    Most likely

    How to tell: You see small, circular patches about 2 to 6 inches wide that look bleached or tan.

    What to do: Apply a fungicide labeled for dollar spot. Increase your nitrogen fertilization slightly to help the grass outgrow the infection.

  2. Leaf spot fungus

    Possible

    How to tell: Dark brown or purple spots appear on the individual blades of grass.

    What to do: Avoid watering in the late evening to keep the foliage dry overnight. Remove excess thatch to improve airflow.

When to worry

Take action as soon as you see circular patches, as they can merge into large dead areas. Small, isolated spots are usually manageable.

Stopping it coming back

Water deeply in the early morning to ensure the grass dries out during the day.

Not sure which one it is? Photograph your bermuda grass.

This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

Download on the App StoreGet it on Google Play

Get the app · Or check it from a photo now, free

Questions people ask

Is dollar spot contagious?
The fungus can spread through spores carried by wind, water, or lawn equipment. Clean your mower deck after cutting infected areas.
Should I stop watering?
Do not stop watering, but change your timing. Water early in the morning so the grass blades dry quickly.

More problems with Bermuda grass

Back to the Bermuda grass guide

This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.