Course Content
Black or stem rust of wheat
0/5
Causative agents and symptom
Etiology
Favorable environment, Survive and spread
Disease cycle
Management of the disease
Leaf or Brown or orange rust of wheat
0/5
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle
Management
Yellow or strip rust of wheat
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Loose smut of wheat
0/4
Causative agent and Symptom
Pathogen
Favorable condition, Survival and Spread
Disease cycle and management
Kernel bunt of wheat
0/4
Causative agent and Symptom
Dwarf bunt : Causative agent and Etiology
Favorable condition, Survival and Spread
Disease cycle and management
Common bunt of wheat
Yellow ear rot/Tundu disease of wheat
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Management
Ear-cockle of Wheat
0/4
Causative agent and Symptom
Favorable condition, Survival and Spread
Disease cycle:
Management
Tan spot of wheat
0/4
Causative agent and Symptom
Etiology:
Favorable condition, Survival and Spread
Disease cycle and management
Molaya disease of wheat
0/2
Causative agent and Symptom
Management:
Downy mildew of maize
0/5
Causative agent
Symptoms:
Pathogen
Favorable Conditions, survival and spread
Management:
Northern leaf blight of maize
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Southern leaf blight
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Gray leaf spot of maize
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Charcoal rot or hollow stem or stalk rot blight
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Banded leaf and sheath blight(BLBS)
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Bacterial Stalk rot of maize
0/6
Causative agent and Symptom
Basal rot
Top rot
Etiology and Favorable condition
Survive and spread
Management
Fusarium stalks and ear rot of maize
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Charcoal rot/root rot of sunflower
0/3
Causative agent and Symptom
Etiology and Favorable condition
Disease cycle and management
Rhizopus head rot
0/3
Causative agent and Symptom
Etiology and Favorable condition
Disease cycle and management
Sclerotina head or stem rot
0/2
Causative agent and Symptom
Disease cycle, favorable condition and management
Angular leaf spot/ bacterial blight/boll rot/black arm of cotton
0/3
Causative agent and Symptom
Etiology and Favorable condition
Disease cycle and management
Fusarium wilt
0/3
Causative agent and Symptom
Etiology and Favorable condition
Disease cycle and management
Bacterial leaf blight of Rice
0/3
Causative agent and Symptom
Favorable condition, Survival and Spread
Disease cycle and management
Bacterial leaf streak of Rice
0/3
Causative agent and Symptom
Favorable condition, Survival and Spread
Management
Rice blast
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Brown Spot or Sesame leaf spot or Helminthosporiose of Rice
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Narrow brown spot /narrow brown leaf spot/ cercospora leaf spot of Rice
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
False smut of rice
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Foot rot or bakane disease of rice
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and Management
Sheath blight of Rice
0/4
Causative agent and Symptom
Etiology and Favorable condition
Survive and spread
Disease cycle and management
Sheath rot of Rice
0/3
Causative agent and Symptom
Etiology and Favorable condition
Disease cycle and management
Rice tungro virus
0/1
Causative agent and Symptom
Rice grassy stunt virus
0/1
Causative agent and Symptom
Rice ragged stunt virus
0/1
Causative agent and Symptom
Rice yellow dwarf disease
0/1
Causative agent and Symptom
Learn crop diseases and their management with Braimy- B.Sc agriculture
About Lesson

C/O : Cercospora  zeae –maydis

  • Prevalent in warmer and rainy season
  • GLS was first reported in 2006 from Nepal.
  • It became epidemic in the Dhungkharka VDC of Kavre Planchowk district and Kaleswor, Gotikhel VDCs of Lalitpur district of Nepal

Symptoms:

  • Symptoms appear first on lower leaves before silking.
  • Small, pinpoint lesions surrounded by yellow halos (more visible as leaf is backlit).
  • Gray to tan lesions develops between the veins and are distinctly rectangular with smooth, linear margins along the leaf veins.
  • Lesions are most often confused with those of the bacterial leaf streak. Bacterial leaf streak lesion margins are usually more irregular or wavy in contrast to the smooth, straight lesions of gray leaf spot. 

Gray Leaf Spot in Corn

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