List of cattleya diseases
Encyclopedia
Bacterial diseases
| Bacterial diseases |
|
|---|---|
| Bacterial soft rot | Erwinia carotovora subsp. carotovora = Pectobacterium carotovorum |
| Brown spot | Acidovorax avenae Acidovorax avenae Acidovorax avenae is a Gram-negative soil bacterium. A. avenae subsp. citrulli is the causal agent of bacterial fruit blotch.... subsp. cattleyae = Pseudomonas cattleyae |
Fungal diseases
| Fungal diseases |
|
|---|---|
| Anthracnose | Colletotrichum crassipes Colletotrichum crassipes Colletotrichum crassipes is a plant pathogen.- External links :* *... Glomerella cingulata Glomerella cingulata Glomerella cingulata is a plant pathogenic fungus that causes disease on many different hosts including quince and apple bitter rot and anthracnose on many fruit and vegetable species. Glomerella cingulata is the sexual stage while the asexual stage is called Colletotrichum gloeosporioides.-... Colletotrichum gloeosporioides [anamorph] Gloeosporium cattleyae Gloeosporium cattleyae Gloeosporium cattleyae is a plant pathogen.- External links :* *... |
| Basal rot | Sclerotium rolfsii |
| Black rot | Phytophthora cactorum Phytophthora cactorum Phytophthora cactorum is a plant pathogen that causes root rot on rhododendron and many other species.- External links :* *... Pythium ultimum Pythium ultimum Pythium ultimum is a plant pathogen.- External links :***... |
| Bloom shoot necrosis | Alternaria Alternaria Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens. They are also common allergens in humans, growing indoors and causing hay fever or hypersensitivity reactions that sometimes lead to asthma... sp. |
| Dieback | Botryodiplodia oncidii Botryodiplodia oncidii Botryodiplodia oncidii is an ascomycete fungus that is a plant pathogen. It causes dieback on Cattleya.- External links :* *... |
| Flyspeck | Schizothyrium perexiguum |
| Gray mold | Botrytis cinerea Botrytis cinerea Botrytis cinerea is a necrotrophic fungus that affects many plant species, although its most notable hosts may be wine grapes. In viticulture, it is commonly known as botrytis bunch rot; in horticulture, it is usually called grey mould or gray mold.The fungus gives rise to two different kinds of... Botryotinia fuckeliana Botryotinia fuckeliana Botryotinia fuckeliana is a plant pathogen, and the causal agent of gray mold disease.The specific epithet was named by mycologist Heinrich Anton de Bary in honor of another mycologist, Karl Wilhelm Gottlieb Leopold Fuckel.... [teleomorph] |
| Leaf necrosis | Curvularia Curvularia Curvularia is a hyphomycete fungus which is a facultative pathogen of many plant species and of the soil. Most Curvularia are found in tropical regions, though a few are found in temperate zones.... sp. |
| Leaf rot | Pythium splendens Pythium splendens Pythium splendens is a plant pathogen.- External links :**... |
| Leaf spot | Alternaria Alternaria Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens. They are also common allergens in humans, growing indoors and causing hay fever or hypersensitivity reactions that sometimes lead to asthma... sp. Cercospora angreci Cercospora angreci Cercospora angreci is a fungal plant pathogen. It causes leaf spot in orchids.- External links :* *... Cercospora odontoglossi Cercospora odontoglossi Cercospora odontoglossi is a fungal plant pathogen.- External links :**... Chaetodiplodia sp. Coniothyrium sp. Corynespora cassiicola Corynespora cassiicola Corynespora cassiicola is a plant pathogen.- External links :* *... Diplodia laelio-cattleyae Diplodia laelio-cattleyae Diplodia laelio-cattleyae is a plant pathogen.- External links :**... Diploida paraphysaria Fulvia fulva Lasiodiplodia theobromae Lasiodiplodia theobromae Lasiodiplodia theobromae is a plant pathogen with a very wide host range. It causes rotting and dieback in most species it infects. On rare occasions it has been found to cause Fungal keratitis. It is a common post harvest fungus disease of citrus known as stem-end rot.- External links :* *... Leptothyrium sp. Phoma oncidii-sphacelati Phoma oncidii-sphacelati Phoma oncidii-sphacelati is a fungal plant pathogen.- External links :* *... Phyllosticta capitalensis Phyllosticta capitalensis Phyllosticta capitalensis is a plant pathogen.- External links :**... Pseudocercospora Pseudocercospora Pseudocercospora is a genus of ascomycete fungi. An anamorphic version of the genus Mycosphaerella, Pseudocercospora species are plant pathogens. The widely distributed genus has been estimated to contain over 1100 species, concentrated predominantly in tropical regions. Pseudocercospora was... sp. Septoria selenophomoides Septoria selenophomoides Septoria selenophomoides is a fungal plant pathogen.- External links :* *... |
| Pseudobulb and root rot | Fusarium oxysporum f. sp. cattleyae |
| Root and stem rot | Rhizoctonia solani Rhizoctonia solani Rhizoctonia solani is a plant pathogenic fungus with a wide host range and worldwide distribution. This plant pathogen was discovered more than 100 years ago. Rhizoctonia solani frequently exists as thread-like growth on plants or in culture. Asexual spores are not produced, only the sexual stage... |
| Root rot | Phytophthora palmivora Phytophthora palmivora Phytophthora palmivora causes bud-rot of palms, fruit-rot or kole-roga of coconut and arecanut. These are among the most serious diseases caused by fungi and moulds in South India. It occurs almost every year in Malnad, Mysore, North & South Kanara, Malabar and other areas. Similar diseases of... |
| Rust | Sphenospora kevorkianii Sphenospora kevorkianii Sphenospora kevorkianii is a plant pathogen.- External links :* *... Uredo nigropuncta Uredo nigropuncta Uredo nigropuncta is a fungalplant pathogen.- External links :... [anamorph] Uredo behnickiana Uredo behnickiana Uredo behnickiana is a fungal plant pathogen.- External links :... |
Viral and viroid diseases
| Viral and viroid diseases |
|
|---|---|
| Flower break | genus Tobamovirus Tobamovirus The genus Tobamovirus contains viruses with a positive sense RNA genome that infect plants. The most common tobamovirus is probably tobacco mosaic virus, which infects tobacco and other plants including potato, tomato, and squash. The name Tobamovirus comes from the host and symptoms: Toba for... , Odontoglossum ringspot virus Odontoglossum ringspot virus Odontoglossum ringspot virus ' is a plant pathogenic virus. It is one of the most common viruses affecting cultivated orchids, perhaps second only to the Cymbidium mosaic virus. It causes spots on leaves and colored streaks on flowers. If a plant is also infected with the Cymbidium mosaic virus,... (ORSV) |
| Mosaic | genus Potexvirus Potexvirus Potexvirus is a genus of plant pathogenic viruses, belonging to the family Alphaflexiviridae and the order Tymovirales. Transmission occurs mechanically, with viruses in this genus causing mosaic and ringspot symptoms.... , Cymbidium mosaic virus Cymbidium mosaic virus Cymbidium mosaic virus ' is a plant pathogenic virus of the family Flexiviridae.It and the Odontoglossum ringspot virus are two of the most common viruses affecting cultivated orchids worldwide. Infected plants can have less desirable flowers or other problems, causing significant financial... (CymMV) genus Tobamovirus Tobamovirus The genus Tobamovirus contains viruses with a positive sense RNA genome that infect plants. The most common tobamovirus is probably tobacco mosaic virus, which infects tobacco and other plants including potato, tomato, and squash. The name Tobamovirus comes from the host and symptoms: Toba for... , Odontoglossum ringspot virus Odontoglossum ringspot virus Odontoglossum ringspot virus ' is a plant pathogenic virus. It is one of the most common viruses affecting cultivated orchids, perhaps second only to the Cymbidium mosaic virus. It causes spots on leaves and colored streaks on flowers. If a plant is also infected with the Cymbidium mosaic virus,... (ORSV) |
| White cell necrosis | genus Potexvirus Potexvirus Potexvirus is a genus of plant pathogenic viruses, belonging to the family Alphaflexiviridae and the order Tymovirales. Transmission occurs mechanically, with viruses in this genus causing mosaic and ringspot symptoms.... , Cymbidium mosaic virus Cymbidium mosaic virus Cymbidium mosaic virus ' is a plant pathogenic virus of the family Flexiviridae.It and the Odontoglossum ringspot virus are two of the most common viruses affecting cultivated orchids worldwide. Infected plants can have less desirable flowers or other problems, causing significant financial... (CymMV) |
Miscellaneous diseases and disorders
| Miscellaneous diseases and disorders |
|
|---|---|
| Algal 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 pomigena |
| Sooty mold | Capnodium spp. |
| Sunburn | Sudden high light |
| Tip necrosis | Calcium deficiency |
| White streaking | Genetic flower break |