Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00000063
11/12/99
AESCULUS DISEASE PROBLEMS
Leaf blotch causes diseased areas of variable size on the
leaves. The diseased areas are at first discolored and
water-soaked, later turning light reddish brown with
bright yellow margins. If the entire leaf is affected it
will dry, turn brown, and fall off. Leaf stalks may also
be attacked. This disease looks very much like scorch.
Rake up and destroy old leaves. No chemical control is
available.
A leaf spot disease will cause small brown circular spots
on the leaves. No chemical control is listed.
Powdery mildew covers the undersides of the leaves with
white mold. Sprays of fungicide should bring the disease
under control.
Anthracnose may infect terminal shoots several inches
from the tip. The infected area is shrunken and the outer
layers of tissue may be ruptured.
Leaf scorch is a physiological problem. The leaf margins
turn brown then browning moves progressively inward
between the veins. Eventually the entire leaf turns
brown. The condition occurs in mid-summer. Keep the
plant well watered during dry weather.
Related information.
Pesticide Recommendations
Powdery Mildew
Anthracnose
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This file was generated from data base ZZ on 01/19/00.
Data base ZZ was last revised on 11/12/99.
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