Pythium root rot can occur at any time of the year as long as the soil remains saturated for several days or weeks. From a distance, symptoms are orange or yellow and usually appear in irregular patterns, …

The first symptoms of Pythium infections include stunting; however, careful examination of root tips early in the infection will show only dead tips. With Pythium root rots, roots appear water-soaked, and the …

To effectively manage Pythium root rot in turfgrasses, a combination of cultural and chemical strategies is necessary. By avoiding poorly drained areas that remain saturated for extended periods, the …

May 15, 2025 · Pythium root rot has been one of the most frequent disease problems on putting greens over the last few years. This disease attacks the roots, crowns and other below-ground tissues and …

Symptoms: Wilting, stunting, uneven plant growth, crown rot, plant death. Roots are discolored, the cortex may slough off, leaving the vascular cylinder. Spread: Pythium spp. are soil borne pathogens, …

Pythium species differ in optimal temperatures for growth and can have varying responses to fungicides. To date, over 15 species have been identified in the Mid-Atlantic region, with Pythium graminicola …

Pythium attacks juvenile tissues such as the root tip and newly germinated seedlings. After gaining entrance to the root the fungus may cause a rapid, brown to black rot of the entire primary root and …

Pythium causes a dark brown to black wet rot that makes roots soften and disintegrate. It typically attacks below the soil surface and may extend up into the base of the stem.

Pythium root rot is a consistent issue in turf areas that are poorly drained, have high organic matter content or are overwatered. Like Pythium blight, disease symptoms can also occur when extended …

Pythium blight, also known as cottony blight or grease spot, occurs when the pathogen attacks the foliage resulting in a rapid blight over large turf areas. When the roots and crowns are attacked, the …