List of African violet diseases
Encyclopedia
Bacterial diseases
| Bacterial diseases |
|
|---|---|
| Bacterial blight | Erwinia chrysanthemi |
| Crown gall | Agrobacterium tumefaciens Agrobacterium tumefaciens Agrobacterium tumefaciens is the causal agent of crown gall disease in over 140 species of dicot. It is a rod shaped, Gram negative soil bacterium... |
Fungal diseases
| Fungal diseases |
|
|---|---|
| Crown rot | Sclerotium rolfsii |
| Cylindrocarpon root rot | Cylindrocarpon destructans |
| Fusarium root rot | Fusarium solani |
| 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... |
| 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. Corynespora cassiicola Corynespora cassiicola Corynespora cassiicola is a plant pathogen.- External links :* *... |
| Phytophthora root and crown rot | Phytophthora nicotianae var. parasitica Phytophthora nicotianae Phytophthora nicotianae is a plant pathogen. It can be found in the root of Zamioculcas zamiifolia.- External links :* *... Phytophthora nicotianae var. nicotianae Phytophthora nicotianae Phytophthora nicotianae is a plant pathogen. It can be found in the root of Zamioculcas zamiifolia.- External links :* *... Phytophthora cryptogea Phytophthora cryptogea Phytophthora cryptogea is a plant pathogen.- External links :**... |
| Powdery mildew | Oidium Oidium This article is about a type of fungal spore. For the ascomycete genus, see Oidium . For the fungus that causes powdery mildew on grapes, see Uncinula necator.... sp. |
| Pythium root rot | Pythium Pythium Pythium is a genus of parasitic oomycete. Most species are plant parasites, but Pythium insidiosum is an important pathogen of animals... sp. |
| Rhizoctonia root and crown rot | Rhizoctonia Rhizoctonia Rhizoctonia is a genus of anamorphic fungi in the order Cantharellales. Species do not produce spores, but are composed of hyphae and sclerotia and are asexual states of fungi in the genus Thanatephorus. Rhizoctonia species are saprotrophic, but are also facultative plant pathogens, causing... sp. |
Fulginacillis Folicle Growth Sistementaris Gland
Viral diseases
| Viral diseases |
|
|---|---|
| Leaf etch | Impatiens necrotic spot virus Impatiens necrotic spot virus SummaryImpatiens necrotic spot virus ' is a plant pathogenic virus of the family Bunyaviridae. It was originally believed to be another strain of Tomato spotted wilt virus but genetic investigations revealed them to be separate viruses... |
| Mosaic | Anemone mosaic virus |
Nematodes, parasitic
| Nematodes, parasitic |
|
|---|---|
| Foliar nematode | Aphelenchoides fragariae Aphelenchoides fragariae Aphelenchoides fragariae is a plant pathogenic nematode.... Aphelenchoides ritzemabosi Aphelenchoides ritzemabosi Aphelenchoides ritzemabosi is a plant pathogenic nematode.- External links :*... |
| Nematodes | Criconema sp. Helicotylenchus Helicotylenchus Helicotylenchus is a genus of nematodes in the family Hoplolaimidae.-Diagnosis:Hoplolaimidae. Female : Body vermiform, spiral to straight. Labial region continuous to slightly offset, rounded or anteriorly flattened, generally annulated but never longitudinally striated; anterior lip annulus... sp. Pratylenchus pratensis Pratylenchus pratensis Pratylenchus pratensis is a plant pathogenic nematode.- External links :*... Paratylenchus projectus Paratylenchus projectus Paratylenchus projectus is a plant pathogenic nematode.- External links :*... Rotylenchus brachyurus Rotylenchus brachyurus Rotylenchus brachyurus is a plant pathogenic nematode.- External links :*... Scutellonema brachyurum Scutellonema brachyurum Scutellonema brachyurum is a plant pathogenic nematode.- External links :*... Tylenchorynchus sp. |
| Root knot | Meloidogyne arenaria Meloidogyne arenaria Meloidogyne arenaria is a plant pathogenic nematode.- External links :*... Meloidogyne hapla Meloidogyne javanica Meloidogyne javanica Meloidogyne javanica is a plant pathogenic nematode. It is one of the tropical Root-knot Nematodes and a major agricultural pest in many countries. Meloidogyne javanica reproduces by obligatory mitotic parthenogenesis .- External links :*... Meloidogyne incognita Meloidogyne incognita The Meloidogyne incognita is a nematode, a type of roundworm, in the family Heteroderidae. It is an important plant parasite classified in parasitology as a root-knot nematode, as it prefers to attack the root of its host plant.... |
Miscellaneous diseases and disorders
| Miscellaneous diseases and disorders |
|
|---|---|
| Marginal leaf burn | Overfertilization |
| Ring spot | Irrigation water temperature much above or below leaf temperature applied to the leaf surface |