Rust :Uromyces fabae

Symptoms

• This often becomes serious in humid regions.
• The plants dry up quickly and the yield is considerably reduced.
• The initial symptoms of the rust infection are flecking of the leaves.
• These flecks soon develop into reddish brown pustules, frequently merging into one another, finally bursting to expose a mass of brown spores.
• The entire leaf blade and other affected parts give a brownish appearance even from a distance.

Management

• Fungicidal application using Tridemorph 0.1 % or Mancozeb 0.25% effectively control the disease.