List of poinsettia diseases


This article is a list of diseases of poinsettia.

Bacterial diseases

Fungal diseases

This also includes oomycetes
DiseaseCauseImage
AnthracnoseColletotrichum capsici
AnthracnoseColletotrichum dematium
AnthracnoseGlomerella cingulata
Aerial blightCeratobasidium ramicola
Basal stem and crown rotSclerotinia sclerotiorum
Basal stem and root rotCeratocystis sp.
Basal stem and root rotThielaviopsis basicola anamorph / Chalara elegans synanamorph
Black rotBotryodiplodia sp.
Bract, flower and leaf blightPhytophthora drechsleri
Bract spotCorynespora cassiicola
Crown and stem rotFusarium oxysporum
Crown and stem rotNectria haematococca
Cutting rotCylindrocladium scoparium
DiebackLasiodiplodia theobromae Botryosphaeria theobromae
Botryotinia fuckeliana
Leaf necrosisCladosporium sp.
Leaf necrosisMacrophoma sp.
Leaf spotAlternaria euphorbiicola
Leaf spotAscochyta sp.
Leaf spotCercospora pulcherrima
Leaf spotCurvularia sp.
Leaf spotDrechslera sp.
Leaf spotMyrothecium roridum
Leaf spotPhyllosticta sp.
Leaf spotSyspastospora parasitica Melanospora parasitica
Leaf spotStemphylium sp.
Mushroom root rotArmillaria tabescens
Powdery mildewOidium sp.
Powdery mildewErysiphe sp.
Powdery mildewMicrosphaera euphorbiae
Root rotPhytophthora nicotianae Phytophthora nicotianae var. parasitica
Root rotPythium aphanidermatum
Root rotPythium debaryanum
Root rotPythium myriotylum
Root rotPythium perniciosum
Root rotPythium splendens
Root rotPythium ultimum
Root and stem rotThanatephorus cucumeris
RustPuccinia sp.
RustUromyces euphorbiae Uromyces proëminens var. poinsettiae
ScabSphaceloma poinsettiae
Stem gallNectriella pironii
Stem rotBotryosphaeria ribis
Stem rotDiplodia sp.
Stem rotLeptothyrium sp.
Stem rotPhoma sp.
Stem rotPhomopsis sp.

Nematodes, parasitic

Viral and viroid diseases

Miscellaneous diseases and disorders