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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  • Facultative saprophyte
  • Conidiophores: 2-6 in number, emerge from stomata, brown in color, 2-4 septa
  • Conidia: 3-8 septa (may be true or pseudo),Straight or slightly curved, widest at the center, presence of hilum

Northern Corn Leaf Blight – May 13 | Crisp Co Ag Blog

Fig: Conidia

Favorable condition:

  • Relatively cool, wet seasons, 6 hours of leaf wetness, temperature 18 and 27 °C
  • Sporulation requires a 14-hour dew period between 20 and 25 °C.
  • Sporulation often occurs during nighttime and is halted when humidity falls during the day.

Infection is inhibited by high light intensity and warm temperatures.

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