Diseases of plants fall into six main categories: bacterial, fungal, viruses, nematodes, nutritional and environmental. Select the disease or problem for the list below or select the proper caterory to explore further and locate the disease or disorder.

  Anthracnose
  Bacterial galls
  Bacterial spots, blights, and rots
  Black mildew and sooty mold
  Cankers, diebacks, and wilts
  Clubroot
  Downy mildew
  Environmental
  Fairy rings
  Fruit spots and rots
  Fungal spots, blights, and blotches
  Needlecasts and evergreen tip blights
  Nematodes
  Powdery mildew
  Root, stem, crown, and collar rots
  Rusts
  Scabs
  Slime molds
  Smuts
  Viruses and phytoplasmas
  White rusts
  Witches' broom