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Disease Identifier


ANTRACNOSE

TIPS FOR UNDERSTANDING AND CONTROL
Reddish-brown spots on leaves; Blighted areas of lawn can vary in size from 2 inches to 10 feet

CONDITIONS FOR DISEASE TO APPEAR*
Warm to hot weather (80 to 90 degrees); Excess rain; Poor drainage; Under-fertilization

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


BROWN PATCH

TIPS FOR UNDERSTANDING AND CONTROL
Leaves and stems die out in large, circular patches in lawn; One of the most common diseases of fescue lawns

CONDITIONS FOR DISEASE TO APPEAR*
Warm to hot weather (75 to 95 degrees); High humidity; Excess rain

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


COPPER SPOT**

TIPS FOR UNDERSTANDING AND CONTROL
Grass blades develop small red spots that enlarge and become darker red; Grass is infested in small, circular patches 1 to 3 inches wide; Grass within the spots dies; Can look like dollar spot

CONDITIONS FOR DISEASE TO APPEAR*
Mild to warm temperatures (70 to 80 degrees); High humidity

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


DOLLAR SPOT

TIPS FOR UNDERSTANDING AND CONTROL
Grass dies in small, circular spots 4 to 12 inches wide; Spots may fuse together in big blotches

CONDITIONS FOR DISEASE TO APPEAR*
Mild to warm weather (60 to 85 degrees); Excess moisture; Under-fertilization

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


POWDERY MILDEW**

TIPS FOR UNDERSTANDING AND CONTROL
White to light gray moldy-looking growth on grass blades

CONDITIONS FOR DISEASE TO APPEAR*
Mild temperatures (65 degrees); Damp weather and excess moisture; Shady areas

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


RED THREAD

TIPS FOR UNDERSTANDING AND CONTROL
Tan to bleached-looking grass blades that shrivel from the tips; Small patches of dead grass; In wet weather you may see small pink thread in the grass

CONDITIONS FOR DISEASE TO APPEAR*
Mild temperatures (60 to 75 degrees); High humidity; Misty weather; Under-fertilization

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


RUST

TIPS FOR UNDERSTANDING AND CONTROL
Dust-like orange-colored spores cover grass blades; Affected areas of lawn have a rusty look; Doesn't usually hurt the grass, but is a nuisance

CONDITIONS FOR DISEASE TO APPEAR*
Mild temperatures (60 to 75 degrees); Dry weather or conditions that favor the slow growth of grass

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


STRIPE SMUT**

TIPS FOR UNDERSTANDING AND CONTROL
Grass blades turn pale green and are stunted; Spores form long black stripes on grass blades; Grass blades curl and die

CONDITIONS FOR DISEASE TO APPEAR*
Cool temperatures (50 to 60 degrees); Excess moisture

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules


SUMMER PATCH OR FROG-EYE DISEASE

TIPS FOR UNDERSTANDING AND CONTROL
Grass forms light green patches up to 24 inches wide that later turn a reddish brown; Some patches may have circle of green grass in center

CONDITIONS FOR DISEASE TO APPEAR*
Warm temperatures (80 to 95 degrees); High humidity; Drought-stressed grass

BAYER ADVANCED™ SOLUTION
Bayer Advanced™ Fungus Control for Lawns Granules

* Over fertilizing and heavy thatch also encourage disease.
** Reprinted with permission from the American Phytopathological Society, St. Paul, MN.