Black Root Rot

Black Root Rot

Causal Agent:

Thielaviopsis basicola

Susceptible Crops:

Affects all turfgrass, Begonia, Calibrachoa, Coreopsis, Cyclamen, Gaillardia, Impatiens, Pansy, Phlox, Poinsettia, Scabious, Snapdragon, Verbena, Viola

Symptoms:

  • Plants are stunted and appear nutrient deficient
  • Roots are dark brown with spots of blackened areas
  • Yellowing of lower leaves