• Raised blisters that develop on fruit lenticels from early to the middle of July.
• The blisters become purplish-black and range in diameter from 1to 5 mm at harvest.

Management:

• Benomyl, Thiophanate-methyl 
• 2% bleaching powder – 5 minutes and 0.2% flit 406 – 10 minutes
• storage at 2-4 oC.
• TBZ – 0.1% incorporated in waxol-0-12 – under refrigeration (Subramanian et al., 1973)
• Prestorage dip in TBZ (500ppm) for 2-3 minutes.
• Boric acid at 4% and Imazil.

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