Description:

• Rust is more common during warm and moist climates, particularly in the monsoon season.
• The disease can attack green gram plants at both the vegetative and flowering stages, causing up to 30% yield loss.

Damage Symptoms:

• Minute reddish-brown pustules appear on the upper and lower epidermis of the leaves, primarily on older leaves.
• These pustules coalesce as the disease progresses, leading to premature leaf fall.
• Severe rust infection results in stunted growth, fewer flowers, and poor pod formation.
• Photosynthesis is reduced, decreasing overall plant health and yield.

Preventive Measures:

• Avoid overhead irrigation, as reducing water on leaf surfaces minimizes rust development.
• Remove infected plant debris from the field.

Control Measures:

• Apply Mancozeb at 2 g/l or Propiconazole at 1 ml/l.