Knowledgebase

Can you identify this in my lawn? #927163

Asked March 31, 2026, 12:09 PM EDT

After the snow thawed these showed up in my yard. I am concerned about whatever it is spreading throughout my entire property.

Wexford County Michigan

Expert Response

Hello Heather,

The attached photos are too low resolution to zoom in and see any detail, but this looks consistent with snow mold.  Snow mold is a fungus disease that grows under snow cover and becomes exposed as the snow melts.  Once exposed, the fungal growth ceases and quite often the turf recovers well.

Rake the area with a leaf rake to remove dead leaf litter.  Apply a nitrogen fertilizer and the grass should green up and outgrow the disease.  If the grass does not fully recover, you may need to overseed to thicken the affected areas.

Here are some articles on snow mold:

https://extension.psu.edu/turfgrass-diseases-gray-snow-mold-causal-fungus-typhula-incarnata

https://www.canr.msu.edu/ipm/diseases/gray-snow-mold?language_id=

Here is an article about seeding the lawn in spring:

https://www.canr.msu.edu/news/tips_for_reseeding_lawns_in_the_spring

Hope this helps.


Edward A. Replied March 31, 2026, 8:31 PM EDT

Loading ...