Editing Larch (section)

==Diseases==
Larches are prone to the [[fungus|fungal]] [[canker]] disease ''[[Lachnellula]] ssp.'' (larch canker); this is particularly a problem on sites prone to late spring frosts, which cause minor injuries to the tree allowing entry to the fungal spores. In [[Canada]], this disease was first detected in 1980 and is particularly harmful to an indigenous species larch, the [[tamarack]], killing both young and mature trees.<ref>[http://www.exoticpests.gc.ca/es-details/disease/1000096 European larch canker] Natural Resources Canada, accessed 23 April 2021</ref>
Larches are also vulnerable to ''[[Phytophthora ramorum]]''. In late 2009 the disease was first found in [[Japanese larch]] trees in the [[England|English]] counties of [[Devon]], [[Cornwall]] and [[Somerset]], and has since spread to the south-west of Scotland.<ref>{{Cite web |url=https://www.gov.uk/guidance/find-a-specific-tree-pest-or-disease |title=Find a specific tree pest or disease |website=GOV.UK|date=20 October 2021 }}</ref>{{failed verification|date=April 2021}}
In August 2010 the disease was found in [[Japanese larch]] trees in counties [[County Waterford|Waterford]] and [[County Tipperary|Tipperary]] in [[Ireland]]<ref>{{Cite web |url=https://www.gov.ie/en/organisation/department-of-agriculture-food-and-the-marine/?referrer=http://www.agriculture.gov.ie/press/pressreleases/2010/august/title,45756,en.html |title=Department of Agriculture, Food and the Marine |website=www.gov.ie}}</ref>{{failed verification|date=April 2021}} and in 2013 in the [[Afan Forest Park]] in south [[Wales]].<ref>{{cite news |publisher=BBC |title=Thousands of Afan Forest trees planted after infected larch |date=21 February 2015 |url=https://www.bbc.co.uk/news/uk-wales-south-west-wales-31559342 |access-date=23 February 2015}}</ref>
''[[Laricifomes officinalis]]'' is another mushroom found in [[Europe]], [[North America]] and northern [[Asia]] that causes internal wood rot. It is almost exclusive guest of the ''gen. Larix''. Other diseases are given by mushrooms, fungal rusts, bacteria and insects.