Global S&T Development Trend Analysis Platform of Resources and Environment
‘Wonder Weevil’ released in fight against invasive floating pennywort | |
admin | |
2022-05-17 | |
发布年 | 2022 |
语种 | 英语 |
国家 | 英国 |
领域 | 气候变化 ; 资源环境 |
正文(英文) | Biocontrol released to protect British waterways against invasive non-native plant In a world-first, South American weevils have been released in England to fight against the invasive non-native species floating pennywort, as part of Invasive Species Week. An ornamental pond plant originating from North America, floating pennywort has the ability to grow up to 20 centimetres each day, forming dense rafts over our rivers that harm native plant, fish and invertebrate species, through competition and cutting oxygen levels in water. Floating pennywort impedes navigation routes, disrupts recreational activities like fishing and canoeing and exacerbates flood risk. Since 2011, the Centre for Agriculture and Bioscience International (CABI), with Defra funding, has been investigating the potential use of a biocontrol agent for floating pennywort. Following a decade of safety and efficacy testing, South American weevils, Listronotus elongatus, have been released to manage the plant and minimise its impact on watercourses for those who use them and the wildlife that rely on them. Adult weevils feed on the leaves of floating pennywort and females lay eggs into their stalks. The larvae then eat into the stems of the plant, reducing its ability to grow and spread further. This is the first use of a biocontrol for floating pennywort across the globe, and only the fourth agent ever released in the UK to tackle non-native plants. The releases were carried out over the winter, with more scheduled for this summer, working alongside the typical approach to managing the plant, which involves physically cutting and extracting it from our waterways. Minister for Biosecurity Lord Benyon said:
Trevor Renals, Senior Technical Advisor on Invasive Species at the Environment Agency, said:
Djami Djeddour, Senior Scientific Officer, CABI, said:
Today’s announcement comes as we mark Invasive Species Week 2022, which will culminate with a weekend of volunteer activity to tackle the spread of floating pennywort. This includes a large removal event on the River Wey – organised by British Canoeing and the Angling Trust – where volunteers will cut down and remove floating pennywort from the water. All waterway users are reminded to Check, Clean, Dry after leaving the water to help prevent the spread of invasive species.
Published 17 May 2022
|
URL | 查看原文 |
来源平台 | Department for Environment, Food and Rural Affairs |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/348797 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | admin. ‘Wonder Weevil’ released in fight against invasive floating pennywort. 2022. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[admin]的文章 |
百度学术 |
百度学术中相似的文章 |
[admin]的文章 |
必应学术 |
必应学术中相似的文章 |
[admin]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论