Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00000132
11/12/99
AQUILEGIA DISEASE PROBLEMS
Leaf spots may be seen on columbine. Destroy infected
leaves at the end of the growing season.
Crown rot causes the crown and stem to rot. The plant
wilts and the stems and leaves dry out. Remove and
destroy infected plants. Two fungi cause this problem one
is Sclerotinia sclerotiorum and the other is Pellicularia
rolfsii.
Root rots cause root system decay. Avoid soils known
to be infested with Pellicularia filamentosa or Pythium
mamillatum.
Cucumber mosaic virus causes leaf mottling and stunted
plants that fail to flower. Destroy infected plants and
control the insects which carry the disease.
Powdery mildew causes a white coating on the leaves.
Related information.
Pesticide Recommendations
Powdery Mildew
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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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