This will help protect designated sites, Biodiversity Action Plan priority species and habitats, and assist rural … It was introduced to large gardens as an ornamental plant. Insects. Rhododendron luteum, the scented yellow azalea species has naturalised in some areas but is not causing anything like the environmental problems that R. ponticum has. In the wild in the UK this variety of Rhododendron is invasive, out competes native plants and is to be avoided. This is a fungus that has the potential to attack a wide variety of native woody plants and is the causative agent of ‘Sudden Oak Death’. All plants in the UK are a male-sterile clone, so luckily no seeds are produced, however, the plant can spread easily from small fragments of the roots, stems or leaves. From the forester’s point of view, despite its attractive show of spring flowers, invasive rhododendron can be a real headache producing dense thickets where little else can survive. EU Regulation on Invasive Alien Species lists 36 plants. Forestry and Land Scotland urges Highland residents not to use rhododendron leaves in Christmas decorations, amid fears the invasive plant will spread deadly P. remorum spores to larch trees in previously uninfected areas Highland residents urged not to use rhododendron leaves in Christmas decorations; Forestry and Land Scotland issued the plea amid concerns the invasive plant will spread deadly P. remorum spores to larch trees Summary • Invasive hybrids of Rhododendron ponticum are widespread in Scotland, especially in the west, and are a threat to native woodland and other habitats, and to many of their characteristic Rhododendron x superponticum causes problems in the wild in acid woodland and heathland. Rhododendron ponticum L. : Introduction Rhododendron ponticum is a large evergreen shrub or small tree introduced to Britain and Ireland in the 18th century. The main culprit is actually one species of rhododendron: rhododendron ponticum, the most common in UK gardens. Many different species of Rhododendron have been introduced into the UK but to date only one of these, Rhododendron ponticum, has become invasive. Managing and Controlling Invasive Rhododendron This Practice Guide sets out the sequence of events required to plan and manage the control of the invasive plant species Rhododendron ponticum. A single rhododendron ponticum can produce a million dust-like seeds – it’s impossible to clear an area once and expect it to remain cleared for good. Editors : Edwards, C. Book : Managing and controlling invasive rhododendron 2006 pp.iv + 36 pp. Paul Simons. Elsewhere in the UK it is an offence to plant or cause to grow in the wild plants listed on Schedule 9 of the Wildlife and Countryside Act (1981). What will this achieve. It also paralyzed bees of the species Andrena carantonica, a solitary mining bee. RHODODENDRON PONTICUM Status: Illegal to plant or allow to grow in the UK. Rhododendrons are grown for their spectacular flowers, usually borne in spring. We have initiated a programme that draws together the experiences and outcomes of past and current projects to create a comprehensive national strategy fit for our … Bees became paralysed and exhibited excessive grooming or other distress behaviours after feeding on Rhododendron nectar, and ate less … Large stands of knotweed often become established in the wild, particularly along waterways where fragments of the plant or soil containing its roots are washed … You must keep evidence that you have followed the guidance in the Forestry Code of Practice Guide - Managing and controlling invasive Rhododendron.. Rhododendron ponticum- Ecological reasons for the success of an alien species in Britain and features that may assist in its control. Pollination of invasive Rhododendron ponticum (Ericaceae) in Ireland. Available online 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. This allowed the invasive population of rhododendron in Britain and Ireland to become better adapted to the environment (e.g. Despite producing an attractive flower in the spring, Sun 16 Apr 2017 16.30 EDT. Rhododendrons’ shallow root system should make transplanting easier than trying to move a deep-rooted plant. Some also have young leaves and stems covered in a striking woolly coating (indumentum) and some - the deciduous rhododendrons or azaleas - have good autumn colour. DON'T go spreading devastating tree diseases this Christmas – leave rhododendron leaves out of your home-made decorations, forestry chiefs have urged.