Grass Master

Red Thread

How to Identify Red Thread

Red thread causes patches that are reddish-brown in color and one to four inches in diameter up to two feet. It is a gelatinous mass of pink mycelium with water-soaked leaves that thrives in temperatures between 40 degrees to 80 degrees. This lawn disease also occurs in areas that experience more than 10 days of foliar wetness.

Why Is Red Thread a Problem for Your Lawn?

Although red thread doesn’t kill your lawn, this fungus creates an unpleasant appearance and can injure your grass. It can make your lawn more prone to other diseases and insects, which can then permanently damage it.

Learn more about other lawn diseases or contact us by filling out the form below.

Red Thread-infected Turfgrass

Susceptible Grass Types

  • All turfgrasses, but particularly severe on fine
  • leaf fescue, and perennial ryegrass

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