Strange substance in lawn - Ask Extension
There are six spots of this substance in our lawn. Can you identify it by these photos and give me some information?
Knowledgebase
Strange substance in lawn #880618
Asked August 07, 2024, 7:06 PM EDT
There are six spots of this substance in our lawn. Can you identify it by these photos and give me some information?
Hennepin County Minnesota
Expert Response
Good Morning,
Thank you for contacting the U of M Extension Service.
From viewing your photos, I believe the substance is slime mold. Please click on the following link from the U of M Extension Yard and Garden website: https://extension.umn.edu/lawn-care/common-fungi
This information states:
Slime molds are not parasitic, so they do not cause plant disease. But heavy coverage on grass or plant leaves may cause yellowing.
- Control is not usually necessary and slime molds will disappear during hot, dry weather.
- Slime molds may be washed, brushed or raked from affected areas.
- Frequent mowing will quickly remove these fungi on rapidly growing grass.
Good Luck!
Thank you!
Sent from my iPad
Sent from my iPad
On Aug 8, 2024, at 7:39 AM, Ask Extension <<personal data hidden>> wrote:
You are welcome!
