Department of Plant Pathology Plant Disease Facts

Gary Moorman
Professor of Plant Pathology

English Ivy (Hedera) Diseases

Disease Symptoms Pathogen/Cause Management
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 cupric hydroxide or azoxystrobin.

Fungal Leaf Spot Large, irregularly shaped, tan to brown spots have numerous, tiny, dark-brown dots (fruiting structures) within them. Colletotrichum trichellum Purchase plants free of the disease. Discard infected plants. Water in a manner that keeps the surface of the leaves dry. Apply cupric hydroxide or fosetyl-Al

Fungicides mentioned above:

COMMON NAME	TRADE NAME
cupric hydroxide	Kocide
azoxystrobin	Heritage
fosetyl-Al	Aliette

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Last modified Monday, May 19, 2008