epiphytotic

adjectives

(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"
is similar to
(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"
domain category
(botany) a living organism lacking the power of locomotion