Field and greenhouse studies were done to identify ovipositional antixenosis (the plant property responsible for resistance) in common beans, Phaseouts vulgaris L., to the leafhopper Empoasca kraemeri Ross and Moore. The 1985 field study showed considerable variation among 49 resistant bean lines for nymphal counts, damage scores, and yield under leafhopper attack. Bean lines ‘EMP 124,’ ‘EMP 125,’ and ‘EMP 135’ had significantly fewer nymphs per leaf over the growing season than ‘ICA Pijao,’ the tolerant check variety. These results were confirmed in 1986 when nymphal emergence and adult leafhopper counts on ‘EMP 124’ and ‘EMP 135’ were compared with ‘EMP 81,’ another tolerant check. Other bean lines with low nymphal emergence, low damage scores, and high nonprotected yield also were identified. The effect of plant age on antixenosis resistance also was studied under field conditions, and ‘EMP 124’ showed high levels of resistance to leafhopper oviposition as seedlings and plants. Compared with the tolerant check, ‘EMP 89’ and ‘EMP 135,’ however, appeared to be less preferred for oviposition as plants than as seedlings. Greenhouse free choice and no choice studies were conducted on bean seedlings and plants. ‘EMP 124’ and ‘EMP 125’ showed high levels of antixenosis resistance compared with ‘ICA Pijao,’ and ‘EMP 94’ and ‘EMP 135’ were intermediate in their response. Crosses between tolerant and antixenosis bean lines are recommended as a potential means of increasing overall leafhopper resistance levels.