Corn Diseases in Ohio

Gibberella stalk rot

• Symptoms
  • sudden onset or grayish-green leaf color
  • lower stalk turns light tan
  • pith inside stalk becomes soft
  • pith has reddish or pinkish color
• Environment
  • stress
  • leaf diseases
  • insect feeding
  • extreme weather
  • unbalanced soil fertility
  • high plant populations
• Survival
  • Fungus survives on corn residue
• Management
  • hybrids with good standability and resistance to leaf blight
  • control insects
  • balanced fertility
  • proper plant populations
  • crop rotation
  • early harvest
  • incorporate crop residues
• Scouting