Confirmed Number of Herbicide-Resistant Weed Species in the Cotton Belt<BR>4<BR>5<BR>4<BR>8<BR>8<BR>3<BR>4<BR>5<BR>8<BR>2<BR>Source: International Survey of Herbicide Resistant Weeds (12/28/09)<BR>12<BR>9<BR>4<BR>0<BR>8<BR>18<BR>14<BR>