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: Setosphaeria turcica (anamorph: Exserohilum turcicum)


  • Early symptoms appear as long, narrow, tan lesions that form parallel to leaf margins (Fig1).
  • As these lesions develop, the classic symptoms of NCLB will be observed: long, oblong, or “cigarshaped” tan or grayish lesions (Fig2).
  • The lesions produce olive-green or black fungal spores when humidity is high, which can give the lesions a dark or dirty appearance.
  • Generally, disease is more severe after tasseling due to the nutritional variation in crop stages

Northern Corn Leaf Blight | Texas Row Crops Newsletter

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