Course Content
Common bunt of wheat
Angular leaf spot/ bacterial blight/boll rot/black arm of cotton
Rice tungro virus
Rice grassy stunt virus
Rice ragged stunt virus
Rice yellow dwarf disease
Learn crop diseases and their management with Braimy- B.Sc agriculture
About Lesson

C/O: Anguina tritici + clavibacter tritici

  • Tundu disease is often known by names like “yellow ear rot of wheat”, “tundu disease of wheat”, “bacterial rot of wheat ears”, “bacterial spike blight”, and “yellow slime disease”.


  • At flowering stage.
  • Twisting of the stem, distortion of the earhead and rooting of the spikelets with a profuse oozing liquid from the affected tissues. Hence, the name of the disease is yellow ear rot. The ooze contains masses of bacterial cells.
  • The infected plants are shorter and thicker than the healthy plants. In the distorted earheads, dark galls are found in place of kernels.
  • The infected plants produce more tillers than do the healthy one.
  • No grain formation.
  • Ear head may not emerge from boot leaf.

Bacterial spike blight in wheat | Wheat spikes showing sympt… | Flickr

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