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6 Tips to Save Your Lawn from Snow Mold

Lawnmark Plus Serving All of Southern New Hampshire & the Merrimack Valley

 

Both pink and gray snow molds occur under a blanket of snow. And since southern New Hampshire and western Massachusetts typically have long winters with a lot of snow, your lawn is at risk for snow molds.

A Primer on Snow Mold

You’ll notice in early spring, when all the snow has melted, that parts of your lawn will have patches of matted grass with a gray or pink tinge to it. When you get closer to these patches, you’ll notice dead grass matted down and brown seed-like fungi, called sclerotia, in the center of these patches. Sclerotia appears in both gray and pink snow mold.

You can read more about sclerotia here.

Snow mold will kill grass leaves. Depending on the severity of snow mold on your lawn, it can also kill the crown and roots of your lawn grass.

What can you do about snow mold in your yard?

First, at Lawnmark Plus, we recommend that you don’t use any fungicides as they are catastrophic to the soil biology we are trying to promote.

Snow Mold Causes

Pink and gray snow molds infect lawns for a few reasons:

  1. Your lawn has too much thatch
  2. You used a lot of synthetic fertilizers that caused unhealthy levels of thatch to develop
  3. You didn’t mow your lawn before the first freeze
  4. You forgot to rake up all the leaves from your property this past fall
  5. You piled snow alongside your driveway and in other areas of your property that created a larger snow cover.
  6. You’re using the wrong type of grass. Bentgrass and perennial ryegrass are susceptible to pink snow mold. And creeping bentgrass, perennial ryegrass and tall fescue are susceptible to gray snow mold.

Spring is around the corner. Read more about how to take care of your lawn in early spring.

Prevent Next Year’s Snow Mold

Your New Hampshire lawn doesn’t have to get snow mold every year. Instead, you can invest in some preventative lawn care practices that will prevent snow mold from occurring next winter.

Here are 6 tips to help you have a mold-free lawn next spring:

  1. Commit to a sustainable lawn care program that includes regular fertilization as well as core aeration and overseeding next fall.
  2. Mow your lawn to 2”- 4”. The amount you mow will fluctuate between 2” – 4” inches throughout the spring, summer and fall months.
  3. Allow your lawn to go dormant in the summer
  4. Make sure you continue to mow your lawn into late fall before the ground freezes for the winter. Ideally, your last cut for the season should be 2” so grass won’t be matted down by snow.
  5. Apply a winterizing fertilizer in the fall to help grass green up right away in early spring.
  6. When you overseed your lawn in the fall, make sure you’re using a blend of Kentucky bluegrass and fine fescues which are more resistant to snow molds.

Even though you live in a snow belt, it doesn’t mean that your lawn needs to develop snow mold. Smart lawn care practices will help you avoid snow mold as well as create a lush carpet of green from early spring through late fall.

If you’re ready for a sustainable or organic solution to your lawn care, get your instant lawn care quote here.

Sources:

Penn State College of Agricultural Sciences, “Gray Snow Mold,” Center for Turfgrass Science.

Ibid, “Pink Snow Mold and Fusarium Patch.”

Waterworth, Kristi, “Snow Mold Fungus: Learn About Snow Mold Control,” GardeningKnowHow.com: Updated February 27, 2015.

 

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