Phytophthora Disease of Alder (Information Note). Webber, J. F., Gibbs, J. N., & Hendry, S. J. Forestry Commission.
Phytophthora Disease of Alder (Information Note) [pdf]Paper  abstract   bibtex   
Phytophthora disease of alder can be found in young woodland plantations and orchard shelterbelts but its greatest impact is on the riparian alders of southern Britain. An annual survey of alders in fixed plots alongside rivers over 8 m wide has been carried out since 1994. This has shown that the incidence of the disease has increased steadily over the years; by 2003 more than 15\,% of the surveyed trees had been affected or killed by the disease. This Note presents information on the pathogen, on the nature of the disease and on approaches to management and control.

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