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Plants grow best in moist, deep, rich well-drained soil in full sun. More than half of the sites surveyed included potential hosts planted during the previous 10 years, and the sites ranged in size from a minimum of 20 to, in some cases, more than 200 trees. Larger agricultural and landscaping equipment such as terracing machinery should be jet-washed with water to remove any contaminated soil before moving to new sites. On 21 April 2020, following the spread of the disease into northern France, new national measures came into effect to strengthen these protections further. The disease is caused by the phytotoxin cerato-platanin, which occurs in the cell wall of C. platani, as well as other Dikarya, and is … (See 'Origins and background' below.). The new requirements apply to imports to the UK from Albania, Armenia, Switzerland, Turkey, and the United States and the EU-27. Symptoms include: A sudden wilting of the leaves appears as the pathogen blocks up the water transport systems of the tree. an area free of C. platani. Ceratocystis platani, which may also be referred to as plane wilt disease, is a serious threat to several plane species, including London plane (Please note: where contact details in the Pest Alert differ from those given on this page, please use those on this page.). Members can attend, for free, the the LTOA meetings which are held four times a year and cover a wide range of tree related matters. Ceratocystis platani causes a disease in plane trees known as "Canker stain of plane" (UK English) or "Canker of sycamore" (US English). London Tree Officers Association, Arboricultural Services, Sustainability and Green Space, Supporting Communities, Camden Town Hall, Judd Street, London WC1H 9JE, Visualisations Protocol for Urban Forestry. by entering through wounds and causing canker stain disease and tree death. It can reach the heartwood along the medullary rays (lines of cells which radiate outwards from the heartwood towards the perimeter of the log). Since October 2014 the UK has held EU Protected Zone Status (PZS) for Ceratocystis, requiring robust controls relating to importations of plane trees and ensuring that planes can only be imported from other areas which have been designated free of the disease. Staining can extend longitudinally (above and below) in the sapwood at a rate of 50–100cm per year. [R.A.M., 30, p. 244]), infection is believed to have appeared for the first time in 1926. The London plane tree (Platanus × acerifolia) is a very large deciduous tree that is quite resilient in urban conditions. var addyb8051417b5f8a15612565485770721a2 = 'executive.officer' + '@'; Canker stain was detected by us in 1961 from 35-to 45-year-old London plane trees grow-ing as city street plantings in Modesto. C. platani is an aggressive fungal pathogen that attacks plane trees ( Platanus spp.) The London Tree Officers Association currently have 150 tree officers across London with 45 associate members who carry out annual plane tree surveillance. You need JavaScript enabled to view it. Can be a messy tree since drops a lot of leaves, twigs and fruit. Tolerant hybrid plane trees are being developed, and one variety has been released to the market in France. It includes chapters detailing morphology and infection strategies, movement and spread, symptoms, practical survey tips, sample collection and fungal identification, the UK and Italian methods of prevention and control and a comprehensive list of references and further reading. "Ash". Once infected, trees die within three to seven years. The fungus can be spread easily through the movement of infected cuttings. In the oldest known centre, at Gloucester, New Jersey, of the canker stain disease of the London plane tree (Platanus acerifolia), caused by Endoconidiophora [Ceratocystis] fimbriata f. platani Walter n.f. The London Tree Officers Association (LTOA), has released a position statement outlining its concern about what it describes as ‘a number of significant pests and diseases threatening the health of London’s trees’. Canker stain of plane is present in several European countries, including Albania, Armenia, France, Greece, Italy, Switzerland and Turkey, as well as some western and eastern states of the United States of America. From elm does not infect sycamore or vice versa most species of plane trees are being,! 45 associate members who carry out annual plane tree diseases tend to mirror those that afflict its close the. ’ below for details of a survey conducted in 2014 platani Professor Lucio Montecchio, De! 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