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Excessive Rain Spells Fungus Problem for Lawns

Posted on: May 19th, 2015

While the rain this spring may have your grass screaming green, too much rain can cause big problems for your lawn. As seen here on 7NEWS, Swingle Landscape Care Consultant and certified arborist Tony Hahn, explains how heavy rain can create the perfect conditions for fungus to attack your pride and joy.

Necrotic ring spot (NRS), also known as “frog eye”, is caused by a fungus – water and fertilizer exacerbates the fungus.

Symptoms typically arrive in late July and August, but due to the high amount of rain we’ve received this spring, NRS is now actively attacking lawns along the Front Range from Fort Collins to Castle Rock.

At first, lighter green or straw-colored rings begin to appear. Grass inside the ring remains green and healthy, but the rings themselves become matted as the grass dies. If left untreated, NRS can cause a LOT of damage. But with proper application of fungicide treatments, coupled with good lawn management practices, NRS can be suppressed and your lawn will thrive.

Necrotic ring spot, lawn care disease

What you can do:

Due to the unusual weather this spring, we expect to see widespread lawn diseases that we haven’t seen in a long time. With the unique climate we have here in Colorado, lawn care in Denver, Fort Collins, and surrounding areas can be challenging at times, but Swingle’s experts are always just a phone call away.

If you believe your lawn has a disease, contact Swingle today for a no-cost evaluation with a lawn care expert!


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