In this disease, dark brown spots are found on the leaves, deformed spots on the stems are long, suppressed and purple-black in color. Later they merge and surround the entire trunk. Irregular red or brown spots appear on the beans, in the acute stage of the disease, the stem starts to weaken.
Chemical Management: Mancozeb 75% WP @ 600 gram/acre or Carbendazim 12% + Mancozeb 63% @ 300 gram/acre or Thiophanate Methyl 70% W/W @ 300 gram/acre or Chlorothalonil 75% WP @ 400 gram/acre.
Biological management: As a biological treatment, spray Trichoderma viride @ 500 gram/acre or Pseudomonas fluorescens @ 250 gram/acre.
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