Common Diseases: Root rots

categories: Common Diseases Common Problems

revision date: 2022-11-04 10:49

Pansies dying from Rhizoctonia root rot.
Pansies dying from Rhizoctonia root rot
Photo by: R.S. Byther

Biology

Many different fungi that infect root tissues cause similar symptoms: off-color foliage, stunting, wilting, and death. Laboratory isolation and microscopic examination are needed for specific diagnosis. Cylindrocladium, Fusarium, Rhizoctonia, and Pythium are common fungal root rot pathogens.

Management Options

Use Integrated Pest Management (IPM) for successful plant problem management.

Non-chemical Management

Select non-chemical management options as your first choice!

  • Correct drainage if water puddles near plants.
  • Plant only in deep, well-drained soil.
  • Avoid planting susceptible plants into soil with a history of root rot problems
  • Remove and destroy infected plant materials including roots when feasible to prevent spread of disease.
  • Do not replant in infested potting soil. Clean pots and containers prior to reuse.

Chemical Management

IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides.

None recommended.

Additional Images