erwinia

from WordNet (r) 3.0 (2006)

erwinia
    n 1: rod-shaped motile bacteria that attack plants

from The Collaborative International Dictionary of English v.0.48

Erwinia \Erwinia\ prop. n. [after Erwin F. Smith, an American
   pathologist. --RHUD]
   a genus of rod-shaped motile bacteria, classed among the
   {Enterobacteriaceae}, that may attack plants. Species of
   {Erwinia} may also be cultured on artificial growth media.
   [WordNet 1.5 +PJC]