As Roundup Ready crops increase, drift damage reports have become common.  Roundup may kill tobacco 
if the exposure is too great.  More commonly milder symptoms appear from non-direct spray drift.  Note
yellow or white spotting along secondary veins that almost highlight the vein.  A heavier drift may produce 
yellow blotches as in the next to last picture.   A more direct hit may produce more severe symptoms (see last
 picture).  Tobacco should not be planted next to Roundup Ready crops.