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
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C/O: Tilletia tritici (low smut), Tilletia laevis (high bunt)

  • Also called hill bunt, stinking bunt cover smut of wheat (due to its sori).


  • Visible at heading stage.
  • Both species produce different symptoms T.caries(low bunt) affected culms are shorter than the normal and the plants affected by T.foetida(high bunt) are more often higher than the normal ones.
  • At the time of flowering hyphae concentrate in the inflorescence and spikelet’s and transforming the ovary into smut sorus of dark green color with masses of chlamydospores.
  • After heading, the spikelets of infected plants tend to flare-out (expansion of seed due to filled of teliospore) and take on a greasy, off-green color.
  • Infected heads may have shorter awns, or even no awns.
  • Slightly discolored grains which are full of black powder and gives foul smell.
  • Mass of black spores that smell like rotting fish due to trimethylamine.

Karnal bunt, khapra beetle in 10 least-wanted list: PHA - Grain Central

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