Corn The Buenos Aires Grain Exchange lowered its forecast of Argentina’s corn harvest estimate by 2.5 MMT down to 54 MMT last week. The main reasons are the February heatwave (which affected the mid- and late-season corn), excessive rainfall, and inclement weather that caused yield losses, plant overturns, etc. The unusually high incidence and severity of Spiroplasma bacteria was also noted as a reason for the reduced output.  Many farmers are noticing that the incidence of Spiroplasma and its effects are larger than expected. Many plants appear be to healthy or nearly healthy at first glance, but the cobs are later found to be affected. Rain continues to fall steadily across Argentina, resulting in significant water accumulat...