a. Bleeding from single large wound with evidence of wood rot

1) light salmon pink spores present on trunk—Gliocladium trunk rot 2)

2 ) light salmon pink spores not present; rotted, black fibers remain; often upper half of trunk.

Thielaviopsis trunk rot (Fig. 65)

FACTSHEET URL: http://edis.ifas.ufl.edu/PP143

b. Bleeding from one or more widely dispersed areas throughout the trunk

1) symptoms appear rapidly and all at one time (1 to 7 days)

lightning injury (Fig. 66)

http://edis.ifas.ufl.edu/EP263

2) symptoms do not appear rapidly; evidence of nail hole, climbing spikes, woodpecker feeding, etc.—physical injury