WHEAT CROP DISEASES

Yellow Ear and Ear Cockle (Tundu disease)

Kernal Bunt Disease Causal Organism= Neovossia indica Symptoms= ·      The kernal bunt disease is characterized by the occurrence of partially infected grain in the ear. ·      The diseased grains, if crushed, given black spore mass which has peculiar stinking smell. ·      Only a few grains are attacked in the ear. ·      Infection takes place only…

Loose Smut Disease Causal Organism = Ustilago tritici. Symptoms= ·      A black loose powdery mass is produced in place of grain. ·      All ears of the plant are affected. ·      When the powder is blowen away by the wind, the rachis is left behind. ·      The fungus grows within the plant and no symptoms are visible…

Powdery mildew disease Causal organism= Blumeria graminis f. sp. Tritic Symptoms = a)    White, powdery patches on the upper surface of leaves and stem. b)   Greyish white powdery growth on the leaf, sheath, stem and floral parts. c)   Small, dark fungal fruiting structures on wheat leaf. d)    Black lesion and drying of leaves and other…

Flag smut disease: Causal Organism= Urocystis agropyri   Symptoms= a)  Long narrow, lead grey or black streak, running parcelled to venisare formed on the leaves. b)  These symptoms become visible when the crop is about 60-70 days old. c)   The effected plant remain stunted with only 2-3 tillers are rarely bare ears. e)  The stem…