A small amount of MH exposure in a transplant can cause dramatic strapping of leaves (top and middle right & left).  
Also a small amount of residue left in a spray tank can cause severe damage to plants in the field (bottom left).
Over application of MH can also cause leaf damage. (bottom right)   A reduced rate of MH (1.5 gal/a) in 
combination with Prime+ or Butralin reduces the risk of field damage and improves sucker control.  

(Photo by Brian Newman, Green Co.)