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Of, relating to, or characterized by a sudden or abnormally destructive outbreak of a plant disease, usually over an extended geographic area.

ep′i·phy·tot′ic n.


(Plant Pathology) (of plant diseases and parasites) affecting plants over a wide geographical region
[from epi- + -phyte + -otic]


(ˌɛp ə faɪˈtɒt ɪk)

1. (of a disease) destroying a large number of plants in an area at the same time.
2. an epiphytotic disease.
[1895–1900; epi- + -phyte + -otic]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.epiphytotic - (of plants) epidemic among plants of a single kind especially over a wide area; "an epiphytotic blight of potatoes"; "epiphytotic conditions associated with a single-plant agriculture"
plant life, flora, plant - (botany) a living organism lacking the power of locomotion
epidemic - (especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously; "an epidemic outbreak of influenza"
References in periodicals archive ?
Under natural epiphytotic conditions, significantly lower Phytophthora blight was found in trellis system among the two commonly adapted planting systems of pointed gourd.
1] progenies (29 plants) were evaluated for resistance to SB under an induced epiphytotic created in the field at station, west of Damascus, Syria under rainfed conditions (500mm rainfall).
Epiphytotic conditions prevail when virulent inoculum, favorable environmental conditions and susceptible host plants coexist (Jamil et al.
Yield losses due to CBB can reach up to 80-90% during high epiphytotic periods such as those reported in Zaire and Colombia (Lozano, 1986; Sanchez and Verdier, 1998; Ospina and Ceballos, 2002).
FC720, FC722, and FC722CMS also exhibited resistance to cercospora leaf spot when tested in an artificial epiphytotic (Ruppel and Gaskill, 1971).
The bacterial leaf scorch epiphytotic, a plant epidemic among oleanders, continues.