Rhizoctonia Aerial Web Blight - Ornamental | GreenCast | Syngenta

Causal Agent:

Rhizoctonia spp.

Susceptible Crops:

Affects all turfgrass, Azalea, Celosia, Gomphrena, Holly, Impatiens, Pentas, Snapdragon, Vinca

Symptoms:

  • Brown, webbing of the fungus attacks the aerial parts of the plant, particularly foliage and stems in the lower canopy near the soil line
  • Brown, irregular shaped spots will form on leaves and stems causing them to rot and collapse
  • Brown, coarse webbing can sometimes be observed under conditions of high humidity