The cost of clearing the weed in Snowdonia National Park, Wales, UK has been estimated at over £30 million (Mabberley, 1998). It has also been introduced to Madeira, India, Belgium, England, France and Ireland. An invasive species is a plant which is listed in the Wildlife and Countryside Act 1981. . It also paralyzed bees of the species Andrena carantonica, a solitary mining bee. Such areas include Nepal. The leaves grow in whorls around the stem. Testing mechanistic models of seed dispersal for the invasive Rhododendron ponticum (L.). ... IUCN SSC Invasive Species Specialist Group Page 2 . Disposal through production of biochar. Inside Ecology Ltd is a company registered in England and Wales. August 2017, Non-Native Species Secretariat (NNSS) factsheet. She conducts protected species surveys and holds a class 1 bat licence, smooth snake and sand lizard licence. Clearance strategie… This can lead to a yield of 25-33% of the original material (forestry.gov.uk, 2017). & Reuter) Hand.-Mazz", "Infraspecific Taxon Details : Rhododendron ponticum subsp. R.ponticum was first introduced to the UK via Gibraltar in 1763 and by 1893 it was being sold on London markets as a flowering pot plant.  It was introduced to Britain as an ornamental shrub in 1763, and later planted as cover for game birds. , It was noted by the botanist Joseph Pitton de Tournefort during his travels in the Near East in 1700–02, and so received its name from Linnaeus to identify the ancient kingdom on the south shores of the Black Sea, Pontus, in which it grew. Registered office: Stanley House, 49 Dartford Road, Sevenoaks, Kent TN13 3TE. Gritten RH, 1995. Abstract The biology of Rhododendron ponticum is discussed in relation to its success as an invasive species in a diversity of habitats in Snowdonia (Wales), and its distribution in the region is outlined. Control Measures Identification Bees became paralysed and exhibited excessive grooming or other distress behaviours after feeding on Rhododendron nectar, and ate less food than bees fed a control nectar. At one time, Rhododendron ponticum was to be found across most of southern and western Europe. Its native range is across Turkey, Lebanon, Bulgaria, the Caucasus, Spain and Portugal. Paul Simons. A study in the journal Functional Ecology also showed that invasive rhododendron nectar was toxic to European honeybees (Apis mellifera), killing individuals within hours of consumption. At a local level, it requires a concerted effort from landowners to eliminate the plant, especially in wooded and upland areas. On the small island of Lundy, Devon, UK, 105 days work and £26,880 is required per year to clear R. ponticum from cliffs (Compton and Key, 1998). The habitat requirements for establishment, however, have only previously been described qualitatively. Rhododendron ponticum is a serious invasive weed. ponticum, with a number of varieties recorded (Terzioglu et al., 2001). In contrast the buff-tailed bumblebee (Bombus terrestris) was not affected by the rhododendron nectar. Despite producing an attractive… A non-native, invasive species. At Kustom Landscapes & Ecology, we specialise in Rhododendron Ponticum control and removal in Dorset, Hampshire, Wiltshire, Bristol & Bath, Gloucestershire, Somerset and Devon, along with a range of other invasive plants. Rhododendron ponticum as a “high risk” invasive species. Rhododendron ponticum is readily recognised by its distinctive attractive flowers and large dark green coloured, oval leaves. Rhododendron ponticum is an established non-native invasive species within the UK, threatening a variety of natural and semi-natural habitats and the associated flora and fauna. 16: 327-335. Rhododendron, also known as ponticum, is an invasive non-native shrub which has quickly infested forests throughout the United Kingdom.  Rhododendron ponticum is a large evergreen shrub which grows up to 8 m tall and is tolerant of a wide range of conditions and soil types (Maguire et al., 2008). ponticum: of Pontus, NE Turkey. ponticum", "Infraspecific Taxon Details : Rhododendron ponticum var. Rhododendron ponticum is the most naturalised and familiar of Ireland's land based invasive plants. Ericaceae roughly translates as heather or heath family. (Cabi.org, 2017). baeticum (Boiss. This Practice Guide sets out the sequence of events required to plan and manage the control of the invasive plant species Rhododendron ponticum. “The economic impact of eradicating R. ponticum in a local area can run to many millions. Photograph: Mark Boulton/Alamy Stock Photo. Copyright © Inside Ecology Ltd 2020 - All rights reserved. Impact MORE, Contact us – Email info (at) insideecology.com. Rhododendron control is a key element in nature conservation in many areas. This Option is for the targeted control of five invasive non-native species Rhododendron ponticum, Giant hogweed, Himalayan balsam, Japanese knotweed, and Grey Squirrels. R.ponticum is a large shrub which can grow up to 8 metres tall, with an irregular base. 15-28. baeticum and subsp. Online Magazine for Ecologists, Conservationists and Wildlife Professionals, Lindsay Carrington Ecological Services Ltd. Love in the time of lockdown – no apparent boom... New research highlights impacts of weedkiller on... Basking sharks travel in extended families with their... First beaver dam appears on Exmoor after 400 years. In Great Britain, Rhododendron ponticum (L.) is a classic example of an invasive species that has spread at a massive scale and caused significant environmental and economic damage (Jackson, 2008). , Fossil evidence shows it had a much wider range across most of southern and western Europe before the Late Glacial Maximum, or until about 20,000 years ago. Mechanical control: heavy machinery with long hydraulic arms are best for digging up the root material and crushing branches. Rhododendron ponticum has often been cultivated outside its native range as an ornamental and, in many areas of Europe, it has escaped from cultivation and become naturalized. Milne, R. I., & Abbott, R. J. It has become what we class as a weed; an invasive species in the case of this particular rhododendron. You can change your mind at any time by clicking the unsubscribe link in the footer of the Newsletter. In the fourth article of the series, Elizabeth Kimber (Ecologist), focuses on Rhododendron ponticum…. Introduction to Britain. Join the ... Cultivation This plant is listed on Schedule 9 of the UK Wildlife and Countryside Act as an invasive… Key identification features of R.ponticum include leaves which are dark green and glossy above, in an oblong to elliptical shape and up to 22cm in length. Rhododendron control is a key element in nature conservation in those areas. Tabbush, P.M. & Williamson, D.R. It is unusual to encounter other varieties or species outside of planted habitats. The species has two disjunct populations one in the southwestern Iberian Peninsula (central and southern Portugal and southwestern Spain) and the other near the southern Black Sea Basin (eastern Bulgaria, northern Turkey, Georgia, and Northern Caucasus). Classified as an invasive non-native weed species, rhododendron ponticum is responsible for the destruction of many native habitats. There are numerous advertising and sponsorship opportunities available on Inside Ecology. R. ponticum is a dense, suckering shrub or small tree growing to 5 m (16 ft) tall, rarely 8 m (26 ft). Caution: Rhododendron ponticum is an invasive plant.