VERBENA DISEASES
VERBENA DISEASES
Bacterial wilt causes leaves to turn yellow and the plants to wilt and die, often without blooming. No chemical control is listed.
Powdery mildew causes a white powdery growth on the leaves. Shaded plants will be more severely infected. Severe infections will turn the leaves yellow. Apply benomyl to control this problem.
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by the editors of Old-House Interiors magazine
by the editors of Old-House Interiors magazine
