Powdery Mildew of Wheat

Causal Organism: Erysiphe graminis

Symptoms:

•White pustules----cottony growth (conidia) = upper leaf surface

•Cholorosis (underside)

•Powdery growth on stem and heads

Epidemiology:

•Mild Temperature (15–22°C)

•High Relative Humidity

•Dense

Between stem elongation & heading

Disease Cycle:

•Crop residue (Cleistothecia)

•Spores (F.E)

Wind

Management:

•Balanced Fertilizers

•Sanitation

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powdery-mildew-of-wheat.pptx (0.30 MB )