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Category : fighting lawn diseases

Lawn diseases, fungi

Summer Lawn Diseases

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  Brown patch This disease is prevalent during moist, hot weather on over-fertilized lawns.  Brown patch, also known as rhizoctonia blight, is most active when grass remains wet and temperatures reach 80 to 90 degrees Fahrenheit. Look for: Dark, water-soaked looking grass turning into browned-out circular areas several inches to several feet in diameter. Some green leaves may persi st within the patch, and roots remain intact. In addition, blades may…

Lawn issues might be a dog rather than disease

Is It Really Lawn Disease?

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The best time to assess your turf’s state of health is before mowing. As you pick up fallen twigs or remove other items from the lawn, you should take a careful look at any areas that appear wilted, off-color or stand out from their surroundings. If you do note changes, it might not be disease. For instance, brownout of a cool-season grass during high summer is likely just summer dormancy, which…


Identifying Diseases

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Many diseases will leave bleached-out, dead turf. When this occurs you not only lose the grass, but you also lose the opportunity to determine what caused the problem. Diseases are progressive in nature, especially during hot, humid weather. It is important to check your lawn regularly if you want to spot disease symptoms early on. Look for spots or banding, color changes, or signs of decay on grass blades. When you…

Spring through fall lawn diseases

Spring-Through-Fall Lawn Diseases

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Fairy Rings Caused by more than 50 varieties of fungus, the rings vary in size and appearance but all form in damp conditions in soil that is high in woody organic matter, which is usually from buried debris or tree stumps. Look for: Rings of fast-growing, dark-green grass with centers composed of weeds, thin turf, or dead grass. Midsummer and fall rings are more apt to be composed of dead grass….

Fall through spring lawn diseases

Fall-Through-Spring Lawn Diseases

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Typhula blight (gray snow mold) Strictly a cold-weather disease, typhula blight appears where snow cover has melted, especially in areas where snow has drifted or been piled. Look for: Irregular 2 to 24 inch patches of bleached-out, matted turf covered with moldy, grayish white mycelium. Embedded in the leaves and crowns of infected plants you will see tiny black or orange-brown spherical sclerotia (hard fungus bodies). Management: Avoid heavy nitrogen fertilization…