• Snow Mold

    15 Apr 2018 | Lawn Diseases
    Snow Mold

    Snow Mold Description: Snow mold is most common to Kentucky Bluegrass and Fescues in regions where snow falls and sits on the lawn for extended periods of time. Microdochium Patch (Pink Snow Mold) Symptoms Yellow, tan, or salmon-colored water-soaked patches that measure 1 to 8 inches or more in diameter.  Pale pink around the edges. Spores are produced in white or salmon-colored sporodochia that are found on the dead tissue. Blighting can occur in streaks caused by spores tracking on...

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    Fairy Ring

    15 Apr 2018 | Lawn Diseases
    Fairy Ring

    Fairy Ring Symptoms: Symptoms vary with casual agents. Aboveground mushroom and puff ball basidiocarps may or may not occur. Typically has outer rings that are either dark-green or brown in color. Shape and size of the rings vary, depending on the species. Activity in turf ceases when the individual rings come in contact with each other. Some casual agents form fruiting bodies, but not rings and vice versa. Conditions Favoring Disease: Typically occurs in the summer. Can also occur on ...

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    Dollar Spot

    15 Apr 2018 | Lawn Diseases
    Dollar Spot

    Dollar Spot Symptoms: Sunken, circular patches that measure several inches. Patches turn from brown to straw color and may eventually coalesce, forming irregularly shaped areas. May display small lesions that turn from yellow-green to straw color with a reddish-brown border. Lesions can extend the full width of the leaf.  Conditions Favoring Disease: Continuous high humidity at temperatures between 59F and 86F. Favored by warm days, cool nights, and intense dews. Infects areas with low ...

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    Mushrooms

    15 Apr 2018 | Lawn Diseases
    Mushrooms

    Lawn Mushrooms Description: Lawn mushrooms are simply the product of fungi infested in your yard's soil. They are actually the fruit of this fungus, and feed off different sources that could be present. Lawn mushrooms feed off decaying matter. In addition to Fairy Rings, various other mushrooms may appear in lawns, but don't injure the grass. However they may be unsightly and cause people to worry that children or pets may eat them. Some lawn mushrooms are poisonous to very poisonous others are...

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    Brown Patch Disease

    Brown Patch Disease Description: Brown patch commonly starts as a small spot and can quickly spread outwards in a circular or horseshoe pattern up to a couple of feet wide. Often times while expanding outwards the inside of the circle will recover, leaving the brown areas resembling a smoke-ring.  Symptoms: Rings or patches of blighted turfgrass that measure 5 inches or more than 10 feet in diameter.  Leaf spots and "smoke rings" - thin, brown borders around the diseased patches that...

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    Rusts (Various Species)

    Rusts - Crown, Leaf, Stem, and Stripe Symptoms: Light yellow flecks initially on the leaf blades and sheaths.  Flecks enlarge, elongate, and turn yellow in color.  Infected areas rise above the epidermis and then rupture, releasing spores that are yellowish-orange to reddish-orange in color.  Leaf blades turn yellow, starting at the tip and progressing to the base sheath.  Severe disease infection can cause the shoot to turn yellowish to reddish-brown in color and slow in ...

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    Powdery Mildew

    Powdery Mildew Description: Grass looks as though it is sprinkled with flour. Kentucky bluegrass and shade areas are the most susceptible. Grass will wither and die as a result.  Symptoms: First appears on the leaves as individual tufts of fine, white mycelium.  The tufts enlarge and coalesce, causing the leaves to have grayish-white or powdery appearance. Severely infected turns yellow, then tan and brown in color. Stressed turf that is severely infected can die. Severely infected ...

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    Leaf Spot/Melting Out

    Leaf Spot/Melting Out Symptoms Purplish-brown to black spots with tan centers on the leaf blade and sheath.  Lower leaves of infected plants become shriveled and blighted. In severe cases, almost all of the leaves and tillers die. Typically follows the appearance of leaf spots on cool-weather turfgrass. Conditional Favoring Disease: Temperatures between 40°F and 80°F.  Areas with 10 hours a day of foliar wetness for several consecutive days. High amounts of nitrogen and low...

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    Red Thread and Pink Patch

    Red Thread and Pink Patch Symptoms: Patches that are reddish-brown in color and 1 to 4 inches in diameter, up to 2 feet. Causes a gelatinous mass of pink mycelium with water-soaked leaves. Conditions Favoring Disease: Temperatures between 40F and 85F and in locations that are low in nitrogen.  Areas that experience more than 10 hours a day of foliar wetness for several consecutive days.  Pink patch usually develops in the presence of red thread. The two diseases often occur under ...

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