English Ivy (Hedera) Diseases
Gary W. Moorman, Professor of Plant Pathology
|BACTERIAL LEAF SPOT||Circular, dark brown to black spots with yellow halos develop on leaves. Leaves yellow, die, and fall.||Xanthomonas campestris pv. hederae||Purchase plants free of the disease. Discard infected plants. Water in a manner that keeps the surface of the leaves dry. Apply a fungicide to protect healthy plants.|
|FUNGAL LEAF SPOT||Large, irregularly shaped tan to brown spots have numerous, tiny dark brown dots (fruiting structures) within them.||Colletotrichum trichellum||Same as for bacterial leaf.|
Bacterial leaf spot.
Fungal leaf spot.
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