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Bacterial wilt causes rapid wilting and death of the plant. No chemical control is listed.

Botrytis gray mold causes serious flower spotting in wet weather. Flowers appear to melt or fuse together. Applications of benomyl control this disease.

Powdery mildew coats the leaves with white powdery growth. Benomyl may be used to control this problem.

Visuals associated with this text.

Visual title - Visual size Visual title - Visual size
Botrytis blight on petunia - 66K Botrytis on petunia - 83K
Sclerotinia on petunia - 53K Sclerotinia, sclerotia in dead petunia stem - 62K
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