5/22/2023 0 Comments Pink patch lawn fungus![]() ![]() ![]() Leaf blades affected by both diseases die starting at the tip, becoming a tan, light-gray or bleached-white color. In addition, both diseases are noted for the formation of pink to red, spiderweb-like threads along the edges of diseased areas when leaves are wet. Both diseases cause tan, pink, or red circular patches ranging in size from a few inches to two feet in diameter. What does red thread look like? Red thread is often misdiagnosed as pink patch, another turf disease that develops under similar environmental conditions. Although red thread is not lethal, it can cause unsightly bleaching of large areas of a lawn. These grasses are commonly used for home lawns, golf course roughs, parks and athletic fields in the Midwest. ![]() Grass species affected by this disease include fine fescues (the species most commonly affected), tall fescue, perennial ryegrass and Kentucky bluegrass. What is red thread? Red thread is a foliar disease of cool-season turfgrasses. Latin, Purdue Univ)īenjamin Van Ryzin, UW-Madison Plant Pathology Bleached grass blades with fuzzy, pink to red masses of spider web-like strands are typical of red thread(R.
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