Michigan State University Extension
Ornamental Plants plus Version 3.0 - 00001505
11/12/99
VERONICA DISEASE PROBLEMS
Downy mildew causes pale spots on the upper sides of
leaves. Corresponding regions on the undersides of the
leaves are covered with grayish mildew.
Leaf spot causes numerous small circular spots which
vary in color from violet to brown. The spots are found
on the upper leaf surface. On the undersides the spots
are yellowish brown. As the spots run together the leaves
look scorched, ragged and shotholed. The last stage of
the disease is defoliation. Destroy all fallen and
spotted leaves. The disease is caused by Septoria
veronicae.
Powdery mildew causes a white powdery growth on the
leaves.
Related information.
Pesticide Recommendations
Fungal and Bacterial Leaf Diseases
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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