Editing Canker (section)

==Examples==
[[File:Tree Canker.svg|thumb|Tree cankers (right) are caused by injuries to the bark that allow pathogens or insects in to infect the tree. Compared above is a healthy tree and segment (left) to a tree infected and containing a canker.]]
* [[Apple]] canker, caused by the fungus ''[[Neonectria galligena]]'' formerly Nectria galligena.<ref>Marjan Ghasemkhani, Resistance against fruit tree canker in apple, Alnarp, 2015</ref>
* [[Ash tree|Ash]] bacterial canker, now understood to be caused by the bacterium ''[[Pseudomonas savastanoi]]'', rather than ''[[Pseudomonas syringae]]''. After DNA-relatedness studies ''Pseudomonas savastanoi'' has been instated as a new species.<ref name="Gardan1999"/>
* [[Butternut (tree)|Butternut]] canker, caused by the fungus ''[[Sirococcus clavigignenti-juglandacearum]]''
* [[Bleeding canker of horse chestnut]], caused by the bacterium ''[[Pseudomonas syringae]]'' pv. ''aesculi''
* [[Citrus canker]], caused by the bacterium ''[[Xanthomonas axonopodis]]''
* [[Cypress canker]], caused by the fungus ''[[Seiridium]] cardinale''
* [[Foamy bark canker]] of oaks in California, caused by the fungus ''[[Geosmithia putterillii]]''
* [[Flowering Dogwood|Dogwood]] anthracnose, caused by the fungus ''[[Discula destructiva]]''
* [[Dead arm (grapes)|Grape canker]], caused by the fungus ''[[Eutypa lata]]''
* [[Honey locust]] canker, caused by the fungus ''[[Thyronectria austro-americana]]''
* [[Larch]] canker, caused by the fungus ''[[Lachnellula willkommii]]''
* [[Mulberry]] canker, caused by the fungus ''[[Gibberella baccata]]''
* [[Oak]] canker, caused by the fungus ''[[Diplodia quercina]]''
* [[Pine pitch canker]], caused by the fungus ''[[Fusarium circinatum]]''
* [[Platanus|Plane]] anthracnose, caused by the fungus ''[[Apiognomonia veneta]]''
* [[Populus|Poplar]] canker, caused by the bacterium ''[[Xanthomonas populi]]''
* [[Rapeseed]] stem canker, caused by the [[Blackleg (Brassica)|blackleg]] fungus ''[[Leptosphaeria maculans]]''
* [[Rose]] cankers, caused by the fungus ''[[Leptosphaeria coniothyrium]]'' and ''[[Cryptosporella umbrina]]''
* [[Scleroderris canker]], caused by the fungus ''[[Gremmeniella abietina]]''
* [[Southwest canker]], caused by environmental conditions (frost damage and sun-scalding)<ref>[https://web.archive.org/web/20160204110410/http://treedoctor.anr.msu.edu/landscape_tips/Oct13_SouthwestCanker.pdf Southwest Canker]</ref>
* [[Strawberry]] anthracnose, caused by the fungus species complexes ''[[Colletotrichum acutatum]]'' and ''[[Colletotrichum gloeosporioides|C. gloeosporioides]]'' (incl. ''[[Colletotrichum fragariae|C. fragariae]]'')<ref>{{cite conference |last1=Smith |first1=B. J. |title=Developmental Stage and Temperature Affect Strawberry Flower and Fruit Susceptibility to Anthracnose |pages=55–57 |editor1-last=Takeda |editor1-first=F. |editor2-first=D. T. |editor2-last=Handley |editor3-first=E. B. |editor3-last=Poling |book-title=Proceedings 2007 North American Strawberry Symposium |publisher=North American Strawberry Growers Association |location=Kemptville, ON Canada |year=2007 |url=https://www.ars.usda.gov/research/publications/publication/?seqNo115=213910}}</ref><ref name=":0">{{Cite journal|last1=Dowling|first1=Madeline|last2=Peres|first2=Natalia|last3=Villani|first3=Sara|last4=Schnabel|first4=Guido|date=2020|title=Managing Colletotrichum on Fruit Crops: A "Complex" Challenge|journal=Plant Disease|language=en|volume=104|issue=9|pages=2301–2316|doi=10.1094/PDIS-11-19-2378-FE|pmid=32689886 |s2cid=219479598 |issn=0191-2917|doi-access=free}}</ref><ref>{{Cite journal|last1=Damm|first1=U.|last2=Cannon|first2=P. F.|last3=Woudenberg|first3=J. H. C.|last4=Crous|first4=P. W.|date=2012|title=The Colletotrichum acutatum species complex|journal=Studies in Mycology|series=complex species or species complexes?|language=en|volume=73|issue=1 |pages=37–113|doi=10.3114/sim0010|issn=0166-0616|pmc=3458416|pmid=23136458}}</ref>
* [[Tomato]] anthracnose, caused by the fungus ''[[Colletotrichum coccodes]]''
* [[Willow]] anthracnose, caused by the fungus ''[[Marssonina salicicola]]''

<gallery>
Image:Baumkrebs-Birke.jpg|Canker on a birch
Image:Beech bark burrs and canker.JPG|Canker on a beech tree
Image:Canker on Ash.JPG|Canker on an ash tree in North Ayrshire, Scotland
</gallery>