Downy Mildew

Downy Mildew (fungus – Sclerophthora macrospora)

Host Grass: St. Augustine Grass(Stenatophrum secundatum)

Cause and Symptoms: downy mildewLeaf blades have white or yellow-green linear streaks running parallel to the leaf veins. Leaves turn yellow and there may be some browning of leaf tips.The disease is disfiguring and growth may be stunted.

Control and Management:  The disease is usually more severe in moist shaded areas.

Content edited by: Young-ki Jo, , Assistant Professor and Extension Specialist, Dept Plant Pathology & Microbiology, Texas A&M University, Texas AgriLife Extension Service, May 31, 2013

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