Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00000333
11/12/99
CERCIS DISEASE PROBLEMS
Dieback begins as a canker on a branch. The cankers, at
first small and sunken, enlarge to girdle the branch.
Bark in the canker turns black and a crack forms between
diseased and healthy bark. The fungus enters through
wounds or dead and dying branches. Once girdled, the part
of the stem beyond the canker wilts and dies. There is no
chemical control. Prune out diseased branches.
Leaf spots can be a problem during wet weather. Since the
disease is rarely serious, no chemical controls are
suggested.
Verticillium wilt attacks and kills redbud. Keeping trees
healthy may help them resist attacks. Prune out wilted
branches.
Related information.
Pesticide Recommendations
Cankers
Verticillium Wilt
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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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