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Studies In Bacteriosis XVIII. A Bacterial Canker Of Apple Trees
Author(s) -
LACEY MARGARET S.,
DOWSON WALTER J.
Publication year - 1931
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1931.tb02282.x
Subject(s) - biology , canker , blight , organism , botany , genetics
S ummary . A bacterial canker of apple trees is described and compared with cankers previously described by Rose and Hopkins, and with fire blight. The causal organism bears a certain likeness to B. amylovorus , but it is regarded as identical with Ps. papulans Rose. The suggestion is made that the latter organism should be considered as a weak parasite producing disease only where some physiological condition renders the trees liable to be attacked.