The effectiveness of glyphosate for controlling Brachypodium pinnatum in chalk grassland

Hurst, Audra and John, Elizabeth (1999) The effectiveness of glyphosate for controlling Brachypodium pinnatum in chalk grassland. Biological Conservation, 89 (3). 261 - 265. ISSN 0006-3207

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Where Brachypodium pinnatum forms dominant, low diversity stands with distinct boundaries, the herbicide glyphosate is sometimes used, in the UK, to control the species. The effectiveness of glyphosate in reducing B. pinnatum dominance and restoring a species rich chalk grassland community was assessed here by treating B. pinnatum stands at two ancient chalk grassland sites, and monitoring the subsequent development of the plant community, over several years. The rate of re-colonisation of treated stands varied between sites. At both sites many of the species initially colonising treated areas were ruderal or uncharacteristic of the surrounding chalk grassland. Where colonisation proceeded rapidly, ruderal species declined, and chalk grassland species characteristic of the site increased in cover. However, B. pinnatum re-colonised all treated stands even though glyphosate inhibited the germination of its seeds. It is predicted that B. pinnatum will regain dominance following glyphosate treatment, and we suggest that glyphosate should only be used to control B. pinnatum as part of an integrated control programme.

Item Type: Article
Keywords: Brachypodium pinnatum; Dominance; Glyphosate; Re-colonisation; Conservation management; Chalk grassland
Schools and Departments: School of Life Sciences > Biology and Environmental Science
Depositing User: Libby John
Date Deposited: 06 Feb 2012 19:10
Last Modified: 19 Sep 2012 09:00
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