Editing Plant pathology (section)

== Epidemiology ==

{{main|Plant disease epidemiology}}

[[File:Plant Disease Triangle.svg|thumb|Plant disease triangle]]

Epidemiology is the study of factors affecting the outbreak and spread of infectious diseases.<ref>{{Cite web |url=https://www.apsnet.org/ |title=American Phytopathological Society |website=American Phytopathological Society |access-date=2019-03-26}}</ref>

A disease triangle describes the basic factors required for plant diseases. These are the host plant, the pathogen, and the environment. Any one of these can be modified to control a disease.<ref>{{cite web |title=Disease Triangle |date=25 April 2014 |url=https://horticulture.oregonstate.edu/nursery/nursery/disease-triangle |publisher=Oregon State University |access-date=31 December 2023}}</ref>