Identification Symptoms
- Stem bleeding is characterized by
the exudation of a dark reddish brown liquid from the longitudinal cracks
in the bark and wounds on the stem trickling down for a distance of
several inches to several feet.
- The lesions spread upwards as the
disease progresses.
- The liquid oozing out dries up and
turns black. The tissues below the lesions become rotten and turn yellow
first and later black.
- In advanced cases, the interior of
affected trunks are hollow due to decay of interior tissues. As a result
of extensive damage in the stem tissue, the outer whorl of the leaves turn
yellow, dry and shed prematurely.
- The production of bunches is
affected adversely. Nut fall is also noticed.
- The trunk gradually tapers at the
apex and crown size becomes reduced in chronic cases.