Editing Platanus (section)

==Diseases==
{{Main|List of Platanus diseases}}
[[File:2020-06-04 16 44 33 An American sycamore with a severe infection of Sycamore anthracnose along Tranquility Lane in the Franklin Farm section of Oak Hill, Fairfax County, Virginia.jpg|thumb|right|upright|Severe infections of anthracnose can sometimes defoliate large swaths of American sycamore forest during mid and late spring, but trees generally recover by mid-summer]]

Planes are susceptible to plane anthracnose (''[[Apiognomonia veneta]]''), a [[fungus|fungal]] disease that can defoliate the trees in some years. The most severe infections are associated with cold, wet spring weather. ''P. occidentalis'' and the other American species are the most susceptible, with ''P. orientalis'' the most resistant. The hybrid London plane is intermediate in resistance.

''[[Ceratocystis platani]]'', a [[wilt disease]], has become a significant problem in recent years in much of Europe.{{sfn|Pathology note 7|2008}} The North American species are mostly resistant to the disease, with which they probably coevolved, while the Old World species are highly sensitive.

Other diseases such as [[powdery mildew]] occur frequently, but are of lesser importance.

''Platanus'' species are used as food plants by the [[larva]]e of some [[Lepidoptera]] species including ''[[Phyllonorycter platani]]'' and [[Setaceous Hebrew Character]].

In the 21st century a disease, commonly known as Massaria disease, has attacked plane trees across Europe. It is caused by the fungus ''[[Splanchnonema platani]]'', and causes large lesions on the upper sides of branches.<ref name="fc">{{cite web |url=http://www.forestry.gov.uk/fr/massaria |title=Massaria disease |publisher=Forestry Commission |access-date=November 7, 2012}}</ref><ref name="tt">{{cite web |url=http://www.treetree.co.uk/massaria-disease-of-planes.html |title=Massaria disease of plane trees |publisher=Treetree |access-date=November 7, 2012}}</ref>