Lawn problems - Knowledgebase Question

Denver, CO (Zone 5A)
Question by michellekolb
April 19, 2007
I had new sod last year which got yellow spots by the fall. This year, the yellow spots are dead. There was most likely either mites or fungus, compacted soil and part shade. I am aerating and would like to lay new sod. Should I put down new soil after aerating, then lay the sod? How can I keep the sod from getting yellow/dollar spots again?


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Answer from NGA
April 19, 2007

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If you've determined the sod died from a fungal infection, I'd recommend re-leveling the spot so it drains well rather than collecting excess moisture. If you plan to remove the diseased sod, it may not be necessare to aerate the soil but to add more soil to bring the low spot up. Son't just dump new soil on the spot; dig it into the existing soil and then level it out. Once you've finished you can lay a square of fresh sod over the patched soil. As long as the soil drains well, you shouldn't have fungal problems again.

Best wishes with your lawn!

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