Madrone: Leaf gall
categories: Madrone Madrone Diseases Ornamental trees Ornamentals
last review date: 2025-07-07 10:39
Photo by: R.S. Byther
Biology
Leaf gall in madrone is caused by a fungus that infects leaf tissue. From late spring to mid-summer, fruiting bodies emerge from the leaf tissue, rupture the cuticle, and release their spores.
Leaves become enlarged, discolored, and may exhibit a white, velvety appearance on one side. Spores in turn germinate on wet surfaces and may cause new infections of young, late-developing stems and leaves.
Management Options
Use Integrated Pest Management (IPM) for successful plant problem management.
Non-chemical Management
Select non-chemical management options as your first choice!
- Hand pick galls or prune localized infections before sporulation in summer.
Chemical Management
IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides.
- None recommended
Additional Image
Photo by: R.S. Byther
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