Getting Rid of Necrotic Ring Fungus

Asked October 6, 2019, 10:14 AM EDT

Hello,

I'm pretty sure this is what I've had going on in my yard for a few years now and have tried adjusting my watering schedule, over the counter fungus fighters and other YouTube fixes and it just keeps getting worse.

At this point I'm starting to reach out to contractors to get quotes on just replacing the grass. I have a couple of questions. . . . 1) Is there some magical solution you can provide me to re-vitalize my existing yard. 2) If I do go the route of replacement, how deep down into the soil will I need to have them go as I've read this fungus is actually in the soil?

Thank you very much!

Weld County Colorado

1 Response

It sounds like you have done a lot of research!

Magical solution: overseed with perennial rye grass, which is not susceptible to the fungus. Less fertilizer, aeration, keep soil dry, mow to 2 ½ to 3 inches. Area will bounce back! Good lawn care practices: https://extension.colostate.edu/topic-areas/yard-garden/lawn-care-7-202/ ! Less-stressed lawns do not have as many problems.

You do not have to replace your lawn. You do not have to dig down in the soil to eradicate the fungus.

Here’s the information about Necrotic Ring Spot in Turf Grass you requested. This publication is more specific: https://extension.colostate.edu/topic-areas/yard-garden/necrotic-ring-spot-of-kentucky-bluegrass-2-900/

As a preventative measure, you may want to clean up your garden areas very well this fall: dispose of dead plants in the garbage, not your compost pile, is a good idea. The carryover of many vegetable diseases and insects can be avoided by doing a thorough fall cleanup. https://planttalk.colostate.edu/topics/vegetables/1837-clearing-vegetable-garden/

Here’s general information about patchy lawns: https://planttalk.colostate.edu/topics/lawns/1509-patchy-lawn/ You may want to follow the links to Ascochyta Leaf Blight of Turf , Clover and Other Mites in Turfgrass, Bill Bugs and White Grubs