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Sclerotinia sclerotiorum is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. S. sclerotiorum can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight.
Sclerotia of the ergot species Claviceps purpurea developing on wheat spikes. A sclerotium (/ s k l ə ˈ r oʊ ʃ ə m /; pl.: sclerotia (/ s k l ə ˈ r oʊ ʃ ə /) [help 1] is a compact mass of hardened fungal mycelium containing food reserves. One role of sclerotia is to survive environmental extremes.
Upon the snow melt, gray circular patches of mycelium are found. These mycelia produce a survival structure called a sclerotia that survives the warm summer months. [2] Typhula blight is commonly controlled with fungicide applications in the late fall and by other cultural practices. [3] If unchecked, snow molds can cause severe turf loss.
For fungicides to have a lasting effect, they must be sprayed multiple times. [5] Cultural control is another way to manage black dot disease. This includes rotating non-host crops. The rotation needs to be fairly long (3–4 years), to allow for the survival structures (sclerotia) to die. [7]
Over 77 °F (25 °C), the growth rate of the fungus decreases significantly, and it ceases at 85 °F (29 °C). 8 Turf grass that is poor in nutrition and are slow growing are areas that are more susceptible to red thread disease. 2 The fungus grows from the thread like red webbing structures called sclerotia. 1 The sclerotia can survive in leaf ...
Stromatinia cepivora is a fungus in the division Ascomycota.It is the teleomorph of Sclerotium cepivorum, the cause of white rot in onions, garlic, and leeks. [2] The infective sclerotia remain viable in the soil for many years and are stimulated to germinate by the presence of a susceptible crop.