According to the news reports, corn was trading in an erratic manner on the CBOT yesterday. In little holiday trade, corn futures ended the overnight session nearly flat. According to specialists, Argentina's crops may be under more stress due to unfavourable dry weather. Early movements of the current CBOT December corn contract remained within Tuesday's trading range. The CBOT December corn price per bushel was last up 1 cent at $6.57-3/4.