Visual Injury 27 DAA from 2,4-D Volatility under Tunnels (October 6, 2010)<BR>20<BR>20<BR>20<BR>19<BR>13<BR>0<BR>0<BR>4<BR>6<BR>Entire  = 48 hrs<BR>T1 = 1st 24 hrs<BR>T2 = 2nd 24 hrs<BR>