GM soya I'd reckon that the vast majority of the soya grown here is GM as its resistant to glyphosate which allows for the use of Roundup and copies thereof in weed control. Its a rather delicate sort of crop and the one try I had at growing it without using glyphosate ended in tears as the crop was largely smothered by weeds.Most of the maize grown here is grown as a fodder crop for silage and because it can outgrow weeds, most of it is non-GM. Sorghum is a very tough crop which doesn't seem to mind a bit of weed competition. The last 3 lots of seed sorghum I've planted said that it came from Zimbabwe on the sacks so I very much doubt whether its GM :-) On the up side, the northern practice of feeding grain to cattle is very rare here... most of the beef animals are fed on grass (fresh or silage.) The few "feed lot" operations I've seen here rely on grass and green maize silage with a bit of ensiled sorghum. | 
