Armillaria root rot
Identification tip: Initially leaves on one side
of the tree turn pale and wilt. Affected trees decline
and die over a period of one to a few years. White fungal
growth grows under the bark and can be seen by peeling
the bark from diseased wood.
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X-disease (cherry buckskin)
Identification
tip: Affected leaves are smaller than normal, pale
green, and more upright. Foliage may be sparse.
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Crown gall
Identification tip: Rough, abnormal growths on roots
or the trunk are an indication of crown gall infections. |
Bacterial canker
Identification tip: Entire branches on trees may be
girdled, causing them to die. Gumming may be present on the
bark surface around the canker margins.
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Phytophthora
root and crown rot
Identification tip: Leaves of trees with crown rot wilt,
dry, and remain attached to the tree.
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Zinc deficiency
Identification tip: Shoot tips are stunted, and leaves
are small and pale.
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Nematode damage
Identification tip: Symptoms of nematode damage may
include reduced vegetative vigor, reduced fruit yield,
unevenly sized trees, and distorted leaves.
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Gopher damage
Identification tip: Gopher burrows are evidenced by
conspicuous mounds of dirt. The actual opening to the burrow
is usually plugged. |
