This is a list of diseases of cattleya (Cattleya spp.).
Bacterial diseases
Bacterial diseasesBacterial soft rot Erwinia carotovora subsp. carotovora = Pectobacterium carotovorumBrown spot Acidovorax avenae subsp. cattleyae = Pseudomonas cattleyae
Fungal diseases
Fungal diseasesAnthracnose Colletotrichum crassipes Glomerella cingulata Colletotrichum gloeosporioides [anamorph] Gloeosporium cattleyaeBasal rot Sclerotium rolfsiiBlack rot Phytophthora cactorum Pythium ultimumBloom shoot necrosis Alternaria sp. Dieback Botryodiplodia oncidiiFlyspeck Schizothyrium perexiguumGray mold Botrytis cinerea Botryotinia fuckeliana [teleomorph] Leaf necrosis Curvularia sp. Leaf rot Pythium splendensLeaf spot Alternaria sp. Cercospora angreci Cercospora odontoglossi Chaetodiplodia sp. Coniothyrium sp. Corynespora cassiicola Diplodia laelio-cattleyae Diploida paraphysaria Fulvia fulva Lasiodiplodia theobromae Leptothyrium sp. Phoma oncidii-sphacelati Phyllosticta capitalensis Pseudocercospora sp. Septoria selenophomoidesPseudobulb and root rot Fusarium oxysporum f. sp. cattleyaeRoot and stem rot Rhizoctonia solaniRoot rot Phytophthora palmivoraRust Sphenospora kevorkianii Uredo nigropuncta [anamorph] Uredo behnickiana
Viral and viroid diseases
Viral and viroid diseasesFlower break genus Tobamovirus, Odontoglossum ringspot virus (ORSV) Mosaic genus Potexvirus, Cymbidium mosaic virus (CymMV) genus Tobamovirus, Odontoglossum ringspot virus (ORSV) White cell necrosis genus Potexvirus, Cymbidium mosaic virus (CymMV)
Miscellaneous diseases and disorders
Miscellaneous diseases and disordersAlgal spot Cephaleuros virescens Kunze Blind leads Suboptimal light levels Chlorotic leaf mottle Iron deficiency Dry sepal Ethylene toxicity (> 2 – 50 ppb) Edema Edema Mesophyll collapse Low temperature exposure No flowers Extended low light periods on short-day plants Pimpling High light conditions Sepal wilt High soluble nitrogen or high levels of air-pollutants Shriveling Senescence of pseudobulbs Slime molds Fuligo spp. Snow mold Ptychogaster sp. (saprotroph) Sooty blotch Gloeodes pomigenaSooty mold Capnodium spp. Sunburn Sudden high light Tip necrosis Calcium deficiency White streaking Genetic flower break
References
Common Names of Diseases, The American Phytopathological Society