Topic : Major Disease of Wheat Crop ::Leaf Rust /Brown Rust

Topic : Major Disease of Wheat  Crop ::Leaf Rust /Brown Rust




  • Leaf Rust /Brown Rust: 

    • Causal Organism : Puccinia recondita {Asked in IBPS AFO 2015}
    • Symptom:  {Source: https://www.agricoachingdelhi.in/}
      • The postules are circular or slightly elliptical, smaller than those of stem rust and contain masses of orange-brown Urediospores
      • Infection sites primarily are found on the upper surfaces of leaves and leaf sheaths and occasionally on the neck and awn
    • Alternate host : Thalictrum sp. (Asked in JRF Plant Sc 2012 & BHU General Agriculture)
    • Management:
      • Mixed cropping with suitable crops.
      • Avoid excess dose of nitrogenous fertilizers.
      • Spray Zineb at 2.5 kg/ha or Propioconazole @ 0.1 %
      • Grow resistant varieties like PBW 550, PBW 17 {Source : https://www.agricoachingdelhi.in/}
    • Life Cycle : 


    {Source : https://www.agricoachingdelhi.in/}


    Cereals Crop :: Major Disease of Wheat (Rust)


    Cereals :: Major Disease of Wheat (Rust)


    • Stem Rust:  {Source:  https://www.agricoachingdelhi.in/}
      •   Puccinia graminis tritici{Asked in JRF Agronomy 2015 and BHU General Agriculture 2017 }
      • Alternate host : Berberis spp.    {Source:  https://www.agricoachingdelhi.in/}
      • Symptom: 
        • Pustules (containing masses of  urediospores) are dark reddish brown - occur on both sides of the leaves, on the stems (Asked in JRF Plant Science 2016 and BHU General Agriculture) {Source:  https://www.agricoachingdelhi.in/}
      • Management
        • Mixed cropping and crop rotation
        • Avoid excess nitrogen
        • Sulphur dusting @ 35-40 kg/ha
        • Mancozeb @ 2g/lit (Asked in BHU General Agriculture)
      • Resistant varieties 
        • Lerma Rojo, Safed Lerma and Sonalika  {Source:  https://www.agricoachingdelhi.in/}
      • Life Cycle