Ask Extension is a way for you to get answers from the Oregon State University Extension Service. We have experts in family and health, community development, food and agriculture, coastal issues, forestry, programs for young people, and gardening.
Q: Several brown, dead rings have formed in my lawn this summer. They seem to coincide with a type of mushroom. Are the mushrooms causing this? Is there any treatment short of applying a fungicide that is effective? Will the lawn recover on its own?