December corn opened 3 1/2 cents lower at 604 3/4 and established an early range of 591 to 605. The market opened lower following a sharp break in crude oil and a rally in the dollar prior to the open. The December contract fell below the lows May 29th which preceded that June weather rally. Corn had initially been expected to open higher in line with overnight action. Corn lost sharply to wheat on active spreading in those markets after the open. Weather remains the main factor in the corn market with traders noting that good weather and forecasts for more of the same are now pushing into the crucial pollination period for much of the crop, making it less and less likely that the corn crop will be stressed into any further yield reductions on the next S&D Report. Cash markets remain mostly steady with farmer selling still at light levels.