HENBIT (LAMIUM-AMPLEXICAULE L) CONTROL AND FORAGE LEGUME TOLERANCE TOSELECTED POSTEMERGENCE HERBICIDES

Field studies were conducted from 1990 through 1992 to evaluate the to lerance of four clover species and one annual medic species to selecte d postemergence herbicides. Circle Valley medic, arrowleaf clover, cri mson clover, red clover and sweetclover were injured by 2,4-D and MCPA while bentazon at 0.8 and 1.7 kg ha(-1) caused consistent injury only to sweetclover. 2,4-DB at 2.2 kg ha(-1) resulted in consistent injury to annual medic, arrowleaf clover, crimson clover, and sweetclover. P ronamide caused no legume injury while MCPA injured crimson clover, re d clover and sweetclover.