''Phytophthora inflata'' is an oomycete

plant pathogen Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomyc ...

. It was first identified in 1949 in Michigan,

USA The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

causing a pit

canker A plant canker is a small area of dead tissue, which grows slowly, often over years. Some cankers are of only minor consequence, but others are ultimately lethal and therefore can have major economic implications for agriculture and horticultur ...

on elm trees. It was found in the United Kingdom in 1992 in the roots of ''

Sambucus tenuifolium ''Sambucus'' is a genus of flowering plants in the family Adoxaceae. The various species are commonly called elder or elderberry. The genus was formerly placed in the honeysuckle family, Caprifoliaceae, but was reclassified as Adoxaceae due to g ...

'' 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 ''Rhododendron'' (; from Ancient Greek ''rhódon'' "rose" and ''déndron'' "tree") is a very large genus of about 1,024 species of woody plants in the heath family (Ericaceae). They can be either evergreen or deciduous. Most species are nati ...

''.

References

External links

Index Fungorum

USDA ARS Fungal Database
inflata Water mould plant pathogens and diseases Tree diseases Species described in 1949 {{plant-disease-stub