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List Of Lettuce Diseases ...
This article is a list of diseases of lettuce (''Lactuca sativa''). Bacterial diseases Fungal diseases Miscellaneous diseases and disorders Nematodes, parasitic Phytoplasma, Viral and viroid diseases ReferencesCommon Names of Diseases, The American Phytopathological Society{{reflist Lettuce Lettuce (''Lactuca sativa'') is an annual plant of the family Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads, although it is also seen in other kinds of food, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lettuce
Lettuce (''Lactuca sativa'') is an annual plant of the family Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads, although it is also seen in other kinds of food, such as soups, sandwiches and wraps; it can also be grilled. One variety, celtuce (asparagus lettuce), is grown for its stems, which are eaten either raw or cooked. In addition to its main use as a leafy green, it has also gathered religious and medicinal significance over centuries of human consumption. Europe and North America originally dominated the market for lettuce, but by the late 20th century the consumption of lettuce had spread throughout the world. , world production of lettuce and chicory was 27 million tonnes, 56percent of which came from China. Lettuce was originally farmed by the ancient Egyptians, who transformed it from a plant whose seeds were used to obtain oil into an important food crop raised for its succulent leav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 infections on grapes. The first, grey rot, is the result of consistently wet or humid conditions, and typically results in the loss of the affected bunches. The second, noble rot, occurs when drier conditions follow wetter, and can result in distinctive sweet dessert wines, such as Sauternes (wine), Sauternes or the Aszú of Tokaji/Grasă de Cotnari. The species name ''Botrytis cinerea'' is derived from the Latin for "grapes like ashes"; although poetic, the "grapes" refers to the bunching of the fungal spores on their Conidium, conidiophores, and "ashes" just refers to the greyish colour of the spores ''en masse''. The fungus is usually referred to by its anamorph (asexual form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nacobbus Aberrans
''Nacobbus aberrans'' is a plant pathogenic nematode. See also * List of beet diseases * List of Capsicum diseases * List of lettuce diseases References External links Nemaplex, University of California - Nacobbus aberrans Tylenchida Lettuce diseases Vegetable diseases Agricultural pest nematodes {{Secernentea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pythium Tracheiphilum
''Pythium tracheiphilum'' is a plant pathogen infecting lettuce Lettuce (''Lactuca sativa'') is an annual plant of the family Asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads, although it is also seen in other kinds of food, .... References External links Index FungorumUSDA ARS Fungal Database Water mould plant pathogens and diseases Lettuce diseases tracheiphilum {{plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleospora Tarda
''Pleospora tarda'' is a plant pathogen infecting several hosts including alfalfa, red clover, peanut, soybean, lentils, beet, tomato, lettuce, hemp Hemp, or industrial hemp, is a botanical class of ''Cannabis sativa'' cultivars grown specifically for industrial or medicinal use. It can be used to make a wide range of products. Along with bamboo, hemp is among the fastest growing plants o ... and carnations. See also * List of soybean diseases References External links Index FungorumUSDA ARS Fungal Database Fungal plant pathogens and diseases Pulse crop diseases Tomato diseases Lettuce diseases Hemp diseases Ornamental plant pathogens and diseases Pleosporaceae Soybean diseases Fungi described in 1833 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stemphylium Botryosum
''Pleospora tarda'' is a plant pathogen infecting several hosts including List of alfalfa diseases, alfalfa, List of red clover diseases, red clover, List of peanut diseases, peanut, List of soybean diseases, soybean, List of lentil diseases, lentils, List of beet diseases, beet, List of tomato diseases, tomato, List of lettuce diseases, lettuce, List of hemp diseases, hemp and List of carnation diseases, carnations. See also * List of soybean diseases References External links Index FungorumUSDA ARS Fungal Database Fungal plant pathogens and diseases Pulse crop diseases Tomato diseases Lettuce diseases Hemp diseases Ornamental plant pathogens and diseases Pleosporaceae Soybean diseases Fungi described in 1833 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athelia Rolfsii
''Athelia rolfsii'' is a corticioid fungus in the family Atheliaceae. It is a facultative plant pathogen and is the causal agent of "southern blight" disease in crops. Taxonomy The species was first described in 1911 by Italian mycologist Pier Andrea Saccardo, based on specimens sent to him by Peter Henry Rolfs who considered the unnamed fungus to be the cause of tomato blight in Florida. The specimens sent to Saccardo were sterile, consisting of hyphae and sclerotia. He placed the species in the old form genus ''Sclerotium'', naming it ''Sclerotium rolfsii''. It is, however, not a species of ''Sclerotium'' in the strict sense. In 1932, Mario Curzi discovered that the teleomorph (spore-bearing state) was a corticioid fungus and accordingly placed the species in the form genus '' Corticium''. With a move to a more natural classification of fungi, ''Corticium rolfsii'' was transferred to '' Athelia'' in 1978. Description The fungus produces effused basidiocarps (fruit bodies) th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerotium Rolfsii
''Athelia rolfsii'' is a corticioid fungus in the family Atheliaceae. It is a facultative plant pathogen and is the causal agent of "southern blight" disease in crops. Taxonomy The species was first described in 1911 by Italian mycologist Pier Andrea Saccardo, based on specimens sent to him by Peter Henry Rolfs who considered the unnamed fungus to be the cause of tomato blight in Florida. The specimens sent to Saccardo were sterile, consisting of hyphae and sclerotia. He placed the species in the old form genus ''Sclerotium'', naming it ''Sclerotium rolfsii''. It is, however, not a species of ''Sclerotium'' in the strict sense. In 1932, Mario Curzi discovered that the teleomorph (spore-bearing state) was a corticioid fungus and accordingly placed the species in the form genus '' Corticium''. With a move to a more natural classification of fungi, ''Corticium rolfsii'' was transferred to '' Athelia'' in 1978. Description The fungus produces effused basidiocarps (fruit bodies) th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septoria Lactucae
''Septoria lactucae'', or lettuce septoria blight, is a pathogenic leaf fungus that is found on lettuce. References External links Index FungorumUSDA ARS Fungal Database lactucae Fungal plant pathogens and diseases Lettuce diseases {{Capnodiales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia Extensicola 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'' - Wheat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia Dioicae
''Puccinia dioicae'' is a plant pathogen that causes rust on goldenrod. It is common in Iceland, where it infects ''Taraxacum'' species and ''Carex capillaris''. Pycniospores and aeciospores are found on ''Taraxacum'' sp., and uredospores and teliospore Teliospore (sometimes called teleutospore) is the thick-walled resting spore of some fungi ( rusts and smuts), from which the basidium arises. Development They develop in '' telia'' (sing. ''telium'' or ''teliosorus''). The telial host is the p ...s are found on ''Carex capillaris''. See also * List of ''Puccinia'' species References External links Index FungorumUSDA ARS Fungal Database Fungal plant pathogens and diseases dioicae Fungi described in 1817 {{fungus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erysiphe Cichoracearum
''Erysiphe cichoracearum'' is a fungal plant pathogen that causes powdery mildew disease of cucurbits, including melon, cucumber, pumpkin, and squash. The primary symptoms are white, powder-like spots on the leaves and stems. ''Sphaerotheca fuliginea'' causes a similar looking powdery mildew Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as ... 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] |
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