Please some one out there, please please help! Yearly I wait eagerly to grow sweet corn, but disaster has struck....eeeeekkkkkk. Some of the plants are showing signs of either being attacked by nasties or by having some kind of disease. I've re-searched over internet with failed results. The initial problematic plants I eradicated from site just encase it was viral, but since, others are now showing the same signs of having what ever.......I'm desperate to save the crop I have left standing........the leaves seem to fail at stem, showing signs of browning and withering, top of leaf remains healthy until they totally weaken at the source then die, all leaves on plants eventualy show these signs, even if I remove contaminated leaf before other show signs of being contaminated this does not stop the spread...........OMG please please advise/help, begging anybody......want fresh home grown sweetcorn this year, a must......THANK YOU THANK YOU!!!