bare spots in lawn

Asked September 6, 2018, 12:42 PM EDT

Every year the dead spots appear in lawn in late summer. No apparent compaction, chemical burn, etc so homeowner is wondering if the problem is a fungus. If it is a fungus, what treatment should be used?

Houghton County Michigan lawn management seeding bare spots in lawn

3 Responses

Thank you for the photos; unfortunately, the one showing the brown leaf blades isn't clear enough for me to be able to tell if it is a fungus or not. So, may I get some additional information please?

Do the dead spots appear in the same location each year? When those areas are raked, does just the dead top growth come up, or do the roots of the turf grass plants come up too? Am I correct that there are not moles in this yard? How much sunshine does this area receive? How often do you run your irrigation system and for how long?

Thank you.


Thanks for your help. Here are the answers (UPPER CASE) to the recent set of questions:

Do the dead spots appear in the same location each year? YES

When those areas are raked, does just the dead top growth come up, or do the roots of the turf grass plants come up too? MY WIFE RAKED AND CUT THE ROOTS. SHE THEN TREATED THE AREA WITH TOP SOIL AND PLANTED NEW SEED. I HAVE ATTACHED TWO PHOTOS TAKEN THIS MORNING. PHOTO #6400 IS IN OUR PROBLEM AREA BUT NOT WHERE NEW GRASS WAS PLANTED. LOTSA MUSHROOMS. PHOTO #6401 IS A SECTION OF THE NEW PLANTING.



Am I correct that there are not moles in this yard? NO MOLES.

How much sunshine does this area receive? MODERATE, MOSTLY AFTERNOON.

How often do you run your irrigation system and for how long? THIS YEAR, NOT MUCH. SO MUCH RAIN.

Mushrooms appear in a lawn when there is wood (from tree or shrub roots) decaying in the soil. Was a tree removed from this area in recent years? If so, no treatment is needed for the mushrooms; they will appear while the roots are decaying. They may reappear for several years, and may be mowed without any adverse effects.

It is possible that a fungus was the cause; the photo with the mushrooms also appears to have a white fungal growth present. When you look at those areas, do they look slightly fuzzy? Treatment for fungus in turfgrass is to do nothing aside from lowering the mowing height on your mower to allow more sunlight to reach the affected grass blades and kill the fungal spores. This year's weather (wet) has resulted in many lawns having fungal infections. The grass generally outgrows or regrows after having a fungus.