| epiphytic bacteria and yeasts on apple blossoms and their potential as antagonists of erwinia amylovora. | apple blossoms were sampled for indigenous epiphytic populations of culturable microorganisms during different stages of bloom at two locations in central washington state and one site in corvallis, or. frequencies and population sizes of bacteria on stigmas of apple were lower in washington than at corvallis, where average relative humidity was higher and possibly favored greater colonization; however, bacteria at corvallis were mainly pseudomonads, whereas those in washington were diverse, com ... | 2009 | 19351253 |