|
List Of Safflower Diseases
This article is a list of diseases of safflowers (''Carthamus tinctorius''). Bacterial diseases Fungal diseases Nematodes, parasitic Viral and Phytoplasma {, class="wikitable" style="clear" ! colspan=2, Viral and mycoplasmalike organism LOdiseases , - , Alfalfa mosaic , , Alfalfa mosaic virus , - , Cucumber mosaic , , Cucumber mosaic virus , - , Lettuce mosaic and necrosis , , Lettuce mosaic virus , - , Phyllody , , Phytoplasma , - , Turnip mosaic and necrosis , , Turnip mosaic virus Turnip mosaic virus (TuMV) is a ''Potyvirus'' of the family ''Potyviridae'' that causes diseases in cruciferous plants, among others. The virus is usually spread by 40-50 species of aphids in a non-persistent manner. Infected plants, especiall ... , - ReferencesCommon Names of Diseases, The American Phytopathological Society Safflower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safflower
Safflower (''Carthamus tinctorius'') is a highly branched, herbaceous, thistle-like annual plant in the family Asteraceae. It is commercially cultivated for vegetable oil extracted from the seeds and was used by the early Spanish colonies along the Rio Grande as a substitute for saffron. Plants are tall with globular flower heads having yellow, orange (colour), orange, or red flowers. Each branch will usually have from one to five flower heads containing 15 to 20 seeds per head. Safflower is native to arid environments having Wet season, seasonal rain. It grows a deep taproot which enables it to thrive in such environments. Biology Plant morphology Safflower is a fast growing, erect, winter/spring-growing Annual plant, annual herb, that resembles a thistle. Originating from a leaf Rosette (botany), rosette emerges a branched central stem (also referred to as terminal stem), when day length and temperature increase. The main shoot reaches heights of . The plant also develops a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oidium Asteris-punicei
''Erysiphe cichoracearum'' is a fungal plant pathogen that causes powdery mildew disease of cucurbits, including melon, cucumber, pumpkin A pumpkin is a vernacular term for mature winter squash of species and varieties in the genus ''Cucurbita'' that has culinary and cultural significance but no agreed upon botanical or scientific meaning. The term ''pumpkin'' is sometimes use ..., and squash. The primary symptoms are white, powder-like spots on the leaves and stems. '' Sphaerotheca fuliginea'' causes a similar looking powdery mildew of cucurbits. External links Powdery Mildew of Cucurbits Fungal plant pathogens and diseases Fruit and vegetable pathogens and diseases cicnoracearum Fungi described in 1805 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lettuce Mosaic Virus
''Lettuce mosaic virus'' (LMV) is a typical potyvirus (genus ''Potyvirus'', family ''Potyviridae''), which causes one of the major virus diseases of lettuce crops worldwide. LMV is seed-borne at a low but significant rate (1-10% of the seeds produced by an infected mother plant germinate into infected seedlings). This provides the primary inoculum in lettuce crops. LMV, and thus the mosaic disease, is then spread locally from plant to plant by the feeding stylet (anatomy), stylets of aphids. Like all plant viruses, LMV is totally harmless to the consumer but causes defects in heading, leaf distortions and leaf colour anomalies, which altogether result in the infected lettuce plants to be unmarketable. Disease rates can reach 100% locally, and therefore cause complete loss of the harvest. LMV can also infect other crops such as spinach and peas, as well as ornamentals (especially the Osteospermum, Cape Daisy ''Osteospermum spp'') and wild plants (especially the Lactuca, prickly le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cucumber Mosaic Virus
''Cucumber mosaic virus'' (CMV) is a plant pathogenic virus in the family ''Bromoviridae''. This virus has a worldwide distribution and a very wide host range, having the reputation of the widest host range of any known plant virus. It can be transmitted from plant to plant both mechanically by sap and by aphids in a stylet-borne fashion. It can also be transmitted in seeds and by the parasitic weeds, ''Cuscuta sp.'' (dodder). Hosts and symptoms This virus was first characterized in cucumbers (''Cucumis sativus'') showing mosaic symptoms in 1934, hence the name ''Cucumber mosaic''. Since then, it has been found to infect a great variety of other plants. These include other vegetables such as squash, melons, peppers, eggplants,tomatoes, beans, carrots, celery, lettuce, spinach, beets, many ornamentals and bedding plants, such as '' Narcissus'', and various weeds. Its presence has been confirmed on every continent of the world, including Antarctica. Symptoms seen with this virus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfalfa Mosaic Virus
Alfalfa mosaic virus (AMV), also known as ''Lucerne mosaic virus'' or ''Potato calico virus'', is a worldwide distributed phytopathogen that can lead to necrosis and yellow mosaics on a large variety of plant species, including commercially important crops. It is the only ''Alfamovirus'' of the family ''Bromoviridae''. In 1931 Weimer J.L. was the first to report AMV in alfalfa (''Medicago sativa''). Transmission of the virus occurs mainly by some aphids (plant lice), by seeds or by pollen to the seed. Virology Structure The virion has a capsid (coat protein) but no envelope. The icosahedral symmetry of the capsid is round to elongated. The range for the length of the virion particle is about 30–57 nm. AMV is a multipartite virus and is composed of four particles (three bacilliform and one spheroidal) with a diameter of 18 nm. Genome The genetic material of AMV consists of three linear positive-sense strand RNAs (RNA 1, RNA 2 and RNA 3) and a subgenomic RNA ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meloidogyne
Root-knot nematodes are plant-parasitic nematodes from the genus ''Meloidogyne''. They exist in soil in areas with hot climates or short winters. About 2000 plants worldwide are susceptible to infection by root-knot nematodes and they cause approximately 5% of global crop loss. Root-knot nematode larvae infect plant roots, causing the development of root-knot galls that drain the plant's photosynthate and nutrients. Infection of young plants may be lethal, while infection of mature plants causes decreased yield. Economic impact Root-knot nematodes (''Meloidogyne'' spp.) are one of the three most economically damaging genera of plant-parasitic nematodes on horticultural and field crops. Root-knot nematodes are distributed worldwide, and are obligate parasites of the roots of thousands of plant species, including monocotyledonous and dicotyledonous, herbaceous and woody plants. The genus includes more than 90 species, with some species having several races. Four ''Meloidogyne'' spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticillium Dahliae
''Verticillium dahliae'' is a fungal plant pathogen. It causes verticillium wilt in many plant species, causing leaves to curl and discolor. It may cause death in some plants. Over 400 plant species are affected by ''Verticillium'' complex. Management ''Verticillium dahliae'' has a wide host range and can persist as microsclerotia in the soil for years, so management via fallowing or crop rotation generally has little success. The exception to this is rotation using broccoli, which has been shown to decrease ''Verticillium'' severity and incidence in cauliflower fields. This is likely due to the production of allyl isothiocyanate in broccoli, which can suppress the growth of plant pathogenic fungi. Seed choice may reduce disease presence. Purchasing seed stock from certified ''Verticillium''-free growers and utilizing resistant or partially resistant cultivars can decrease disease incidence. Even resistant cultivars may show symptoms if the field has a high concentration of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria
''Septoria'' are ascomycete pycnidia-producing fungi that cause numerous leaf spot diseases on field crops, forages and many vegetables including tomatoes which are known to contract ''Septoria musiva'' from nearby cottonwood trees, and is responsible for yield losses. The genus is widespread, and estimated to contain 1072 species. Pycnidia produce needle-like pycnidiospores. ''Septoria apiicola'' is the cause of late blight of celery. It is characterized by the production of conidia within pycnidia. The symptoms include chlorotic spots that turn brown and necrotic. ''Septoria apiicola'' can survive on seeds. Several species of passion flower are infected by several species of ''Septoria'', and a fungus, which has been going by the name ''Septoria passiflorae'' but which is probably an undescribed species, has been used to control the invasive ''Passiflora tarminiana ''Passiflora tarminiana'' (or banana passionfruit) is a species of passionfruit. The yellow fruits are edi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerotinia Sclerotiorum
''Sclerotinia sclerotiorum'' is a plant pathogenic fungus and can cause a disease called white mold if conditions are conducive. ''S. sclerotiorum'' can also be known as cottony rot, watery soft rot, stem rot, drop, crown rot and blossom blight. A key characteristic of this pathogen is its ability to produce black resting structures known as sclerotia and white fuzzy growths of mycelium on the plant it infects. These sclerotia give rise to a fruiting body in the spring that produces spores in a sac which is why fungi in this class are called sac fungi (Ascomycota). This pathogen can occur on many continents and has a wide host range of plants. When ''S. sclerotiorum'' is onset in the field by favorable environmental conditions, losses can be great and control measures should be considered. Hosts and symptoms ''S. sclerotiorum'' is among the most omnivorous of plant pathogens and so would not make a good mycoherbicide. Economically significant hosts include ''Vicia faba'', for w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia Verruca
''Puccinia verruca'' is a plant pathogen that causes rust on safflower. See also * List of ''Puccinia'' species References External links USDA ARS Fungal Database Fungal plant pathogens and diseases verruca A plantar wart, or verruca vulgaris, is a wart occurring on the bottom of the foot or toes. Its color is typically similar to that of the skin. Small black dots often occur on the surface. One or more may occur in an area. They may result in pain ... Fungi described in 1879 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia Carthami
''Puccinia carthami'' is a plant pathogen Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomyc ... that causes rust on safflower. See also * List of ''Puccinia'' species References External links USDA ARS Fungal Database Fungal plant pathogens and diseases carthami Fungi described in 1840 Taxa named by August Carl Joseph Corda {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia Calcitrapae Var
''Puccinia'' is a genus of fungi. All species in this genus are obligate plant pathogens and are known as rusts. The genus contains about 4000 species. The genus name of ''Puccinia'' is in honour of Tommaso Puccini (died 1735), who was an Italian doctor and botanist who taught Anatomy at Hospital of Santa Maria Nuova in Florence. The genus was circumscribed by Pier Antonio Micheli in Nov. Pl. Gen. on page 213 in 1729. Taxonomy Examples of ''Puccinia'' rusts and the diseases they cause: * ''Puccinia asparagi'' - Asparagus rust * '' Puccinia graminis'' - Stem rust, also known as black rust * ''Puccinia horiana'' - Chrysanthemum white rust * ''Puccinia mariae-wilsoniae'' - Spring beauty rust * ''Puccinia poarum'' - Coltsfoot rust gall * '' Puccinia psidii'' - Guava rust or eucalyptus rust * ''Puccinia recondita'' - Brown rust * ''Puccinia sessilis'' - Arum rust and Ransoms rust * ''Puccinia striiformis'' - Stripe rust, also known as yellow rust * '' Puccinia triticina'' - ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
