This article is a list of diseases of poinsettias (Euphorbia pulcherrima).
Pseudomonas cichorii
P. marginalis
P. syringae subsp. syringae
Xanthomonas campestris pv. poinsettiaecola
Erwinia chrysanthemi
Colletotrichum capsici
Colletotrichum dematium
Glomerella cingulata
Colletotrichum gloeosporioides [anamorph]
Ceratobasidium ramicola
Rhizoctonia ramicola [anamorph]
sp.
Thielaviopsis basicola [anamorph]
Chalara elegans [synanamorph]
Botryodiplodia sp.
Fusarium oxysporum
Fusarium solani [anamorph]
Lasiodiplodia theobromae
= Botryosphaeria theobromae
Botryotinia ricini
Amphobotrys ricini [anamorph]
= Botrytis ricini
Botryotinia fuckeliana
Botrytis cinerea [anamorph]