List Of Pearl Millet Diseases
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List Of Pearl Millet Diseases
This article is a list of diseases of pearl millet (''Pennisetum glaucum''). Bacterial diseases Fungal diseases Viral diseases Nematodes, parasitic Insects Insect pests include: ;Seedling pests *shoot fly '' Atherigona approximata'' (major seedling pest) *''Atherigona soccata'', ''Atherigona oryzae'', ''Atherigona punctata'', ''Atherigona ponti'', and '' Atherigona yorki'' *anthomyiid flies '' Delia arambourgi'' and '' Delia flavibasis'' (Ethiopia) ;Stem borers *lepidopteran borers: ''Chilo partellus'', ''Chilo infuscatellus'', '' Sesamia calamistis'', '' Sesamia cretica'', ''Sesamia inferens'', ''Diatraea grandiosella'', ''Coniesta ignefusalis'', ''Busseola fusca'', ''Eldana saccharina'', ''Ostrinia furnacalis'', and ''Ostrinia nubilalis'' ;Leaf feeders *lepidopteran caterpillars: '' Amsacta moorei'', '' Mythimna loreyi'', ''Mythimna separata'', ''Cnaphalocrocis medinalis'', ''Cnaphalocrocis patnalis'', ''Spodoptera exigua'', ''Spodoptera frugiperda'', ''Spodoptera ...
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Pearl Millet
Pearl millet (''Cenchrus americanus'', commonly known as the synonym ''Pennisetum glaucum''; also known as 'Bajra' in Hindi, 'Sajje' in Kannada, 'Kambu' in Tamil, 'Bajeer' in Kumaoni and 'Maiwa' in Hausa, 'Mexoeira' in Mozambique) is the most widely grown type of millet. It has been grown in Africa and the Indian subcontinent since prehistoric times. The center of diversity, and suggested area of domestication, for the crop is in the Sahel zone of West Africa. Recent archaeobotanical research has confirmed the presence of domesticated pearl millet on the Sahel zone of northern Mali between 2500 and 2000 BC. Description Pearl millet has ovoid grains of 3 – 4 mm length, the largest kernels of all varieties of millet (not including sorghum). These can be nearly white, pale yellow, brown, grey, slate blue or purple. The 1000-seed weight can be anything from 2.5 to 14 g with a mean of 8 g. The height of the plant ranges from 0.5 – 4 m. Cultivation Pearl millet is well ad ...
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Rhizoctonia Solani
''Rhizoctonia solani'' is a species of fungus in the order Cantharellales. Basidiocarps (fruit bodies) are thin, effused, and web-like, but the fungus is more typically encountered in its anamorphic state, as hyphae and sclerotia. The name ''Rhizoctonia solani'' is currently applied to a complex of related species that await further research. In its wide sense, ''Rhizoctonia solani'' is a facultative plant pathogen with a wide host range and worldwide distribution. It causes various plant diseases such as root rot, damping off, and wire stem. It can also form mycorrhizal associations with orchids. Taxonomy In 1858, the German plant pathologist Julius Kühn observed and described a fungus on diseased potato tubers and named it ''Rhizoctonia solani'', the species epithet referring to ''Solanum tuberosum'' (potato). The disease caused was well known before the discovery and description of the fungus. In 1956, Dutch mycologist M.A. Donk published the new name ''Thanatephorus cucumer ...
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Wheat Streak Mosaic Virus
''Wheat streak mosaic virus'' (WSMV) is a plant pathogenic virus of the family ''Potyviridae'' that infects plants in the family Poaceae, especially wheat (''Triticum spp.''); it is globally distributed and vectored by the wheat curl mite, particularly in regions where wheat is widely grown. First described in Nebraska in 1922, stunted growth and the eponymous “streaks” of yellowed, non-uniform discoloration are characteristic of WSMV infection. As it has been known to cause 100% crop mortality, WSMV is a subject of ongoing scientific research. Genome WSMV is a flexible, rod-shaped virus composed of a positive-sense single-strand RNA genome approximately 8.5 to 12 kilobases in length, and can be either mono- or bipartite. The RNA serves as both the genome and viral messenger. The genomic RNA (or its segments) is translated into polyprotein(s) which are transformed by virus-encoded proteases into functional products. The virions of WSMV encapsidate a single molecule of posi ...
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Satellite Panicum Mosaic Virus
A satellite or artificial satellite is an object intentionally placed into orbit in outer space. Except for passive satellites, most satellites have an electricity generation system for equipment on board, such as solar panels or radioisotope thermoelectric generators (RTGs). Most satellites also have a method of communication to ground stations, called transponders. Many satellites use a standardized bus to save cost and work, the most popular of which is small CubeSats. Similar satellites can work together as a group, forming constellations. Because of the high launch cost to space, satellites are designed to be as lightweight and robust as possible. Most communication satellites are radio relay stations in orbit and carry dozens of transponders, each with a bandwidth of tens of megahertz. Satellites are placed from the surface to orbit by launch vehicles, high enough to avoid orbital decay by the atmosphere. Satellites can then change or maintain the orbit by propulsion, ...
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Panicum Mosaic Virus
''Panicum mosaic virus'' (PMV) is a positive-sense single-stranded RNA viral pathogen that infects plant species in the panicoid tribe of the grass family, ''Poaceae''. The pathogen was first identified in Kansas in 1953 and most commonly causes disease on select cultivars of turf grass, switchgrass, and millet. The disease most commonly associated with the panicum mosaic virus pathogen is St. Augustine Decline Syndrome, which infects species of turf grass and causes chlorotic mottling. In addition to St. Augustine Decline, panicum mosaic virus is responsible for chlorotic streaking and mild green mosaicking in select cultivars of switchgrass and millet. History PMV was first observed in Kansas in 1953. It was originally noted to infect switchgrass (''Panicum virgatum''), and was observed infecting St. Augustine grass (''Stenotaphrum secundatum'') in Texas in 1966. The strain specific to St. Augustine grass has since been observed in Arkansas, Louisiana, Mississippi and South ...
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Maize Streak Virus
''Maize streak virus'' (MSV) is a virus primarily known for causing maize streak disease (MSD) in its major host, and which also infects over 80 wild and domesticated grasses. It is an insect-transmitted maize pathogen in the genus ''Mastrevirus'' of the family ''Geminiviridae'' that is endemic in sub-Saharan Africa and neighbouring Indian Ocean island territories such as Madagascar, Mauritius and La Reunion. The A-strain of MSV (MSV-A) causes sporadic maize streak disease epidemics throughout the maize growing regions of Africa. MSV was first described by the South African entomologist Claude Fuller who referred to it in a 1901 report as "mealie variegation". The development of conventionally resistant maize varieties has been a priority since the 1950s in Kenya, Nigeria, South Africa and elsewhere, with a good deal of success: however, there are several genes associated with resistance, and breeding is complex. Transgenically resistant or genetically modified maize varietie ...
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Maize Dwarf Mosaic Virus
''Maize dwarf mosaic virus'' (MDMV) is a pathogenic plant virus of the family ''Potyviridae''. Depending on the corn plant’s growth stage, the virus can have severe implications to the corn plant’s development which can also result in economic consequences to the producer of the crop. Importance Maize (''Zea mays'') is a major cereal crop; it is third behind rice and wheat in production. An average of 380 million tons are produced annually by 53 countries. Maize is the most widely grown crop ranging from tropical areas with altitudes over 3000 m to temperate areas extending as far north as the 65th latitude. MDMV is the most serious virus of sweet corn. If corn plants are infected with MDMV, ear formation and development are slowed leading to grain yield loss. The damage from MDMV can cause the halting of ear formation and development, ultimately leading to the production of barren ears and direct yield loss. There can be losses of up to 42% on early planted field corn. If ...
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Guinea Grass Mosaic Virus
Guinea ( ),, fuf, 𞤘𞤭𞤲𞤫, italic=no, Gine, wo, Gine, nqo, ߖߌ߬ߣߍ߫, bm, Gine officially the Republic of Guinea (french: République de Guinée), is a coastal country in West Africa. It borders the Atlantic Ocean to the west, Guinea-Bissau to the northwest, Senegal to the north, Mali to the northeast, Cote d'Ivoire to the southeast, and Sierra Leone and Liberia to the south. It is sometimes referred to as Guinea-Conakry after its capital Conakry, to distinguish it from other territories in the eponymous region such as Guinea-Bissau and Equatorial Guinea. It has a population of million and an area of . Formerly French Guinea, it achieved independence in 1958. It has a history of military coups d'état.Nicholas Bariyo & Benoit FauconMilitary Faction Stages Coup in Mineral-Rich Guinea ''Wall Street Journal'' (September 5, 2021).Krista LarsonEXPLAINER: Why is history repeating itself in Guinea's coup? Associated Press (September 7, 2021).Danielle PaquettHere ...
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Black Streaked Dwarf Virus
Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus Age of Enlightenment, and night versus day. Since the Middle Ages, black has been the symbolic color of solemnity and authority, and for this reason it is still commonly worn by judges and magistrates. Black was one of the first colors used by artists in Neolithic cave paintings. It was used in ancient Egypt and Greece as the color of the underworld. In the Roman Empire, it became the color of mourning, and over the centuries it was frequently associated with death, evil, witches, and magic. In the 14th century, it was worn by royalty, clergy, judges, and government officials in much of Europe. It became the color worn by English romantic poets, businessmen an ...
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Fusarium Moniliforme
''Fusarium verticillioides'' is the most commonly reported fungal species infecting maize (''Zea mays''). ''Fusarium verticillioides'' is the accepted name of the species, which was also known as ''Fusarium moniliforme''. The species has also been described as mating population A of the ''Fusarium fujikuroi'' species complex (formally known as ''Gibberella fujikuroi'' species complex). ''F. verticllioides'' produces the mutagenic chemical compound fusarin C. ''F. verticillioides'' produces a group of disease-causing mycotoxins—fumonisins—on infected kernels. Control The growth of all strains of ''F. verticillioides'' is significantly inhibited by an iodine-containing fungistatic Fungistatics are anti-fungal agents that inhibit the growth of fungus (without killing the fungus). The term ''fungistatic'' may be used as both a noun and an adjective. Fungistatics have applications in agriculture, the food industry, the paint ind ... (AJ1629-34EC) at concentrations that do not har ...
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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 ...
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