326 ‘MANUAL OF FRUIT DISEASES 
usually marked by a crevice (Figs. 87 and 88). In the spring 
the canker has a soaked appearance, the advancing margin 
being indefinite or raised. Sometimes milky or reddish brown 
Fig. 86. — Twig- 
blight. Tip of a 
shoot blighted by : 
the fire-blight bac- Fic. 87.— Hold-over canker. Note that it 
teria. surrounds a stub of a twig. 
drops ooze from the lenticels (Fig. 89); the presence of this 
ooze, however, is not a constant character. Not infrequently 
fire-blight and winter-injury are confused. In contrast to a 
sudden and local dying of the affected organs in the case of 
fire-blight, winter-killing manifests itself by a general wilting 
