Skip Navigation

Forestry 2001 74(1):73-78; doi:10.1093/forestry/74.1.73
© 2001 by Institute of Chartered Foresters
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Pratt, E
Right arrow Articles by Redfern, B
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Infection of Sitka spruce stumps by spores of Heterobasidion annosum: control by means of urea

E Pratt and B Redfern

Forest Research, Northern Research Station, Roslin, Midlothian EH25 9SY, UK

The ability of a 17 per cent solution of urea to protect Sitka spruce stumps against infection by spores of H. annosum was tested on 24 sites throughout Scotland and north England. After treatment, stumps were either inoculated with basidiospores or exposed to natural infection. Urea failed to reduce the incidence of infection arising from inoculation but it reduced the level of natural infection by two-thirds from a mean of 8.8 per cent to 3.5 per cent. In inoculated stumps that became infected, urea significantly increased the extent of colonization, particularly on peat soils, but this effect was not detected in naturally infected stumps. The fungus was largely confined to the heartwood and it is suggested that colonization may have been stimulated by the addition of nitrogen. It is concluded that urea provides an effective means of control against present ambient spore loads.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.