• Infects tender leaves, mostly at the leaf tip region.
  
• Spots are small, brown in colour and is sorrounded by an yellow hallo.
• Numerous  spots coalesce and dry up leading to defoliation.
• The infected leaves often crinkle and become distorted before shedding.

Management:

• Spraying with Bordeaux mixture 1%, copper oxychloride 0.125% (Fytdan 2.5 g/l) mancozeb 0.2% (Dithane/ Indofil M 45 2.66 g/l) or carbendazim 0.05% (Bavastin 1 g/l) at 10 - 15 days intervals is effective.

http://rubberdisease.blogspot.in/