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Horticultural crops :: Flowers :: Rose

Rust: Phragmidum mucronatum
Symptoms:
  • Lemon yellow pustules appear on lower surface of the leaves and stems. Then the colour changes to blackish red.
  • The affected leaves turn yellow deformed and fall prematurely.
  • Die back symptom also appear due to weakening of the plant.

Management:

  • Collection and burning of fallen leaves
  • Spray with Wettable sulphur 0.25%

Image Source:

http://www.turfpro.net/images/info_rust1.jpg
Lemon yellow pustules

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