Skip to Main navigation Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension

Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Garlic > Discolored rotten roots

Print Icon Email Icon Share Icon

Garlic > Root > Discolored rotten roots

1 of 3
  • Image: Fusarium Basal Rot 1
  • Image: Fusarium Basal Rot 2

Fusarium basal rot
Fusarium oxysporum f.sp. cepae

  • Bulb has watery brown decay starting at the base and extending up into the bulb
  • Red to purple discoloration may be seen on bulbs early in the season
  • A white fuzzy growth can often be seen on the rotted basal plate
  • Leaves turn yellow to brown from the tip down and wilt
  • More information on Fusarium Basal Rot ...
2 of 3
  • Image: Fusarium Basal Rot

Pink root
Phoma terrestris

  • Sunken dark pink to maroon areas on roots
  • Infected roots break off easily
  • Leaves turn yellow with a reddish tinge from the tip down due to root damage
  • Plants are stunted and may produce no to very small bulbs
  • Commonly occurs mid to late season, in areas with poor soil
  • More information on Pink Root...
3 of 3
  • Image: White Rot

White rot
Sclerotium cepivorum

  • Bulb is soft and rotten from the base up
  • In severely infected plants, leaves may be stunted, yellow from the tip down, and die
  • Bulb has white, fluffy fungal growth
  • Small, hard, black poppy seed like fungal structures form on infected bulbs
  • Roots may be rotten or completely rotted away
  • More information on White Rot ...

Don't see what you're looking for?

  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy