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CROWN GALL
Galls that occur on roots or stems of herbaceous material are caused by
a soil-borne bacteria and called Crown Gall. These galls vary from pea
size to several inches in diameter, giving the appearance of a cancer-like
growth. Plants with numerous or large crown galls may show reduced growth,
yellow leaves or other symptoms of general distress. Severely infected
plant material is more susceptible to winter injury. These galls disrupt
the flow of water and nutrients between the roots and leaves. Plant death
can occur.
Avoid wounding plants while transplanting, cultivating and mowing them.
Clean pruning, budding, and grafting tools between cuts with fresh liquid
household bleach. Carefully dig and dispose of severely infected plants.
Do not replant the same type of plant in the same spot for at least 5 years.
Commonly affected plants include Euonymus Wintercreeper, Roses, Privet,
Rhododendrons and many nut plants.
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