We tested two diploid (M. glandulosaDavid andM. prostrataJacquin) and one tetraploid (M. glutinosaMarshall von Bieberstein) glandular-haired perennialMedicagaspecies for resistance to oviposition by the alfalfa weevil,Hypera postica(Gyllenhal). The control plants were perennialM. sativaL. (susceptible) and annualsM. scutellata(L.) Mill. andM. disciformisDC. (resistant).M. prostrataandM. glandulosawere highly resistant to oviposition in both the free-choice and the no-choice test. Both entries ofM. glutinosawere not statistically less preferred than the controls in the free-choice test. In the no-choice test, the twoM. glutinosaentries were significantly less preferred thanM. sativa.