halo blight: Meaning and Definition of

ha'lo blight"

Pronunciation: [key]
  1. a disease of plants, characterized by small, necrotic leaf or fruit lesions surrounded by a yellowish, halolike band, caused by any of several bacteria of the genus Pseudomonas.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.