Knowledgebase
gatewood elementary, hopkins #946602
Asked October 06, 2026, 1:44 PM EDT
Hennepin County Minnesota
Expert Response
Possibilities include slime mold:
https://www.aces.edu/blog/topics/lawn-garden/slime-molds-on-home-lawns/
Fungal disease
To learn more about what might be causing the black spots, take or send samples of the affected vegetation to the University of Minnesota Plant Disease Clinic.
https://pdc.umn.edu/