It was found in the United Kingdom in 1992 in the roots of Sambucus tenuifolium and Lilac (Syringa vulgaris), in 2003 it was found in a UK nursery infecting Rhododendron ponticum. In the same year it was found in a nursery in Ohio also infecting Rhododendron.
A fungus was discovered in the United Kingdom in 1992 in the roots of Sambucus tenuifolium and Lilac (Syringa vulgaris), and again in 2003, it was found in a UK nursery affecting Rhododendron ponticum. Similarly, in the same year, it was detected in an Ohio nursery also infecting Rhododendron.