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Hieroglyphus Daganensis
The African rice grasshopper, ''Hieroglyphus daganensis'' is a medium-sized grasshopper species found in the Sahel region. Although not called a locust in English, this species shows gregarious behaviour and some morphological change (phase polymorphism) on crowding and may become a moderately important pest species for small-holder farmers in the region. Description and biology Adults The overall colour of adult insects is usually green, with a finely dotted shiny integument. Antennae are longer than the head and pronotum together. The pronotum is cylindrical, with three deep and wide sulci (grooves) crossing the dorsum. Hoppers Rice grasshopper nymphs in Mali, showing darkened coloration (on right) after crowding The colour of immature insects may vary depending on their phase (illustrated right) during a particularly fertile year, dense populations of ''H. daganensis'' showed a distinct blackening in certain areas of cuticle. Outbreaks and control Outbreaks are freque ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann August Krauss
Hermann August Krauss (1 August 1848 – 21 April 1939) was an Austria, Austrian entomologist who specialised in Orthoptera and Dermaptera. Krauss was a physician. His collection is in the Naturhistorisches Museum in Vienna. Selected publications *1877. Orthopteren vom Senegal. ''Anzeiger der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse, Wien'', 14, no. xvi : 141-145. *1878. Orthopteren vom Senegal gesammelt von Dr. Frantz Steindachner. ''Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Klasse, Wien'', (incorrectly dated 1877), 76 (1) : 29-63, 2 pl. *1890. Erklärung der Orthopteren-Tafeln Marie Jules Cesar Lelorgne de Savigny, J. C. Savigny’s in der "Description de l’Égypte". Aus der Literatur zusammengestellt und mit Bemerkungen Versehen. ''Verhandlungen der zoologisch-botanischen Gesellschaft in Wien'', 40 : 227-272. *1891. Beitrag zur Kenntniss westafrikanischer Orthopteren. 2. Ort ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mali
Mali, officially the Republic of Mali, is a landlocked country in West Africa. It is the List of African countries by area, eighth-largest country in Africa, with an area of over . The country is bordered to the north by Algeria, to the east by Niger, to the northwest by Mauritania, to the south by Burkina Faso and Ivory Coast, and to the west by Guinea and Senegal. The population of Mali is about 23.29 million, 47.19% of which are estimated to be under the age of 15 in 2024. Its Capital city, capital and largest city is Bamako. The country has 13 official languages, of which Bambara language, Bambara is the most commonly spoken. The sovereign state's northern borders reach deep into the middle of the Sahara, Sahara Desert. The country's southern part, where the majority of inhabitants live, is in the Sudanian savanna and has the Niger River, Niger and Senegal River, Senegal rivers running through it. The country's economy centres on agriculture and mining with its most promine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1877
Insects (from Latin ') are hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes, and a pair of antennae. Insects are the most diverse group of animals, with more than a million described species; they represent more than half of all animal species. The insect nervous system consists of a brain and a ventral nerve cord. Most insects reproduce by laying eggs. Insects breathe air through a system of paired openings along their sides, connected to small tubes that take air directly to the tissues. The blood therefore does not carry oxygen; it is only partly contained in vessels, and some circulates in an open hemocoel. Insect vision is mainly through their compound eyes, with additional small ocelli. Many insects can hear, using tympanal organs, which may be on the legs or other parts of the body. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acrididae
Acrididae are the predominant family of grasshoppers, comprising some 10,000 of the 11,000 species of the entire suborder Caelifera. The Acrididae are best known because all locusts (swarming grasshoppers) are of the Acrididae. The subfamily Oedipodinae is sometimes classified as a distinct family Oedipodidae in the superfamily Acridoidea. Acrididae grasshoppers are characterized by relatively short and stout antennae (so they may be called "short-horned grasshoppers"Borror, Donald J. and Richard E. White. ''A Field Guide to the Insects of America North of Mexico.'' Houghton Mifflin, Boston: 1970. p. 78), and tympanal organ, tympana on the side of the first abdominal segment. Subfamilies The ''Orthoptera Species File'' (September 2021) lists the following subfamilies of Acrididae. The numbers of genera and species are approximate and may change over time. * Acridinae MacLeay, 1821 (140 genera, 470 species), Worldwide: temperate and tropical * Calliptaminae Jacobson, 1905 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mopti Region
Mopti (Fula language, Fulfulde: 𞤁𞤭𞥅𞤱𞤢𞤤 𞤃𞤮𞥅𞤩𞤼𞤭𞥅, transliterated ''Diiwal Moobti'') is the fifth administrative region of Mali, covering 79,017 km2. Its capital is the city of Mopti. During the Mali War, 2012 Northern Mali conflict, the frontier between Southern Mali which is controlled by the central government and the rebel-held North ran through Mopti Region. Geography Mopti Region is bordered by Tombouctou Region to the north, Ségou Region to the southwest, and Burkina Faso to the southeast. The population in the 2009 census was 2,037,330. The region contains a number of ethnic groups including Fula people, Fulani, Malinke people, Malinke, and Bambara people, Bambara. The Niger River crosses the region, and is joined by the Bani River, Bani, an important tributary, at the city of Mopti. The region is separated into several areas: the Inland Niger Delta around Mopti, the Bandiagara cliffs and the plain of Bankass along the Burkin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dogon People
The Dogon are an ethnic group indigenous to the central plateau region of Mali, in West Africa, south of the Niger bend, near the city of Bandiagara, and in Burkina Faso. The population numbers between 400,000 and 800,000. They speak the Dogon languages, which are considered to constitute an independent branch of the Niger–Congo language family, meaning that they are not closely related to any other languages. The Dogon are best known for their religious traditions, their mask dances, wooden sculpture, and their architecture. Since the twentieth century, there have been significant changes in the social organisation, material culture and beliefs of the Dogon, in part because Dogon country is one of Mali's major tourist attractions. Geography and history The principal Dogon area is bisected by the Bandiagara Escarpment, a sandstone cliff of up to high, stretching about 150 km (90 miles). To the southeast of the cliff, the sandy Séno-Gondo Plains are found, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LUBILOSA
LUBILOSA was the name of a research program management, programme that aimed at developing biological pest control, a biological alternative to the insecticide, chemical control of locusts. This name is an acronym of the French language, French title of the programme: Lutte Biologique contre les Locustes et les Sauteriaux (biological pest control, biological control of locusts and grasshoppers). During its 13-year life (November 1989 to December 2002), the programme identified an Genetic isolate, isolate of an entomopathogenic fungus belonging to the genus ''Metarhizium'' and virulence, virulent to locusts, and went through all the necessary steps to develop the commercial Biological insecticide, biopesticide product ''Green Muscle'' based on its spores. Collaborators The programme was conceived by Chris Prior and :species:David J. Greathead, David Greathead of the International Institute of Biological Control (IIBC), a former research institute of CAB International that was based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert Locust
The desert locust (''Schistocerca gregaria'') is a species of locust, a periodically swarming, short-horned grasshopper in the family Acrididae. They are found primarily in the deserts and dry areas of northern and eastern Africa, Arabia, and southwest Asia. During population surge years, they may extend north into parts of Southern Europe, south into Eastern Africa, and east in northern India. The desert locust shows periodic changes in its body form and can change in response to environmental conditions, over several generations, from a solitary, shorter-winged, highly fecund, non-migratory form to a gregarious, long-winged, and migratory phase in which they may travel long distances into new areas. In some years, they may thus form locust plagues, invading new areas, where they may consume all vegetation including crops, and at other times, they may live unnoticed in small numbers. During plague years, desert locusts can cause widespread damage to crops, as they are highly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metarhizium Acridum
''Metarhizium acridum'' is the new name given to a group of fungal isolates that are known to be virulent and specific to the Acrididea (grasshoppers). Previously, this species has had variety status in ''Metarhizium anisopliae'' (var. ''acridum'' ); before that, reference had been made to '' M. flavoviride'' or ''Metarhizium sp.'' describing an "apparently homologous and distinctive group" of isolates that were most virulent against ''Schistocerca gregaria'' (desert locust) in early screening bioassays. Biology ''M. acridum'' almost exclusively infects grasshoppers (order Orthoptera): researchers believe that this has to do with the ''Mest1'' gene which is not present in ''M. acridum''. By taking a strain of '' M. robertsii'' that has a nonfunctioning ''Mest1 gene'', researchers found that the mutant was only able to infect ''Melanoplus femurrubrum'', which is consistent with ''M. acridum'' activity. This allows the initiation of the infection process on the specific target ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomopathogenic Fungus
Entomopathogenic fungi are parasitic unicellular or multicellular microorganisms belonging to the kingdom of Fungi, that can infect and seriously disable or kill insects. Pathogenicity for insects is widely distributed in the kingdom of fungi and occur in six fungal phyla (Ascomycota, Oomycetes, Basidiomycota, Chytridiomycota, Zygomycota, and Microsporidia). It plays a vital ecological role in controlling insect populations by impacting 19 out of 30 known insect orders. Some fungal entomopathogens are opportunistic whereas some have evolved into highly specific pathogens of insects. Mode of infection Unlike many other insect pathogens (entomopathogenic viruses, nematodes, or bacteria), most entomopathogenic fungi do not require entry through ingestion or oral intake and instead directly attack the insect cuticle and penetrate the insect body through the exoskeleton. These fungi use a broad spectrum of virulence factors such as adhesins (to attach to insect cuticles), lytic enzym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biological Pesticide
A biopesticide is a biological substance or organism that damages, kills, or repels organisms seens as pests. Biological pest management intervention involves predatory, parasitic, or chemical relationships. They are obtained from organisms including plants, bacteria and other microbes, fungi, nematodes, ''etc''. They are components of integrated pest management (IPM) programmes, and have received much practical attention as substitutes to synthetic chemical plant protection products (PPPs). Definitions Regulatory positions can be influenced by public perceptions, thus: * the EU, defines biopesticides as "a form of pesticide based on micro-organisms or natural products". * the US EPA states that they "include naturally occurring substances that control pests (biochemical pesticides), microorganisms that control pests (microbial pesticides), and pesticidal substances produced by plants containing added genetic material (plant-incorporated protectants) or PIPs". Types Biopesti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sorghum
''Sorghum bicolor'', commonly called sorghum () and also known as great millet, broomcorn, guinea corn, durra, imphee, jowar, or milo, is a species in the Poaceae, grass genus ''Sorghum (genus), Sorghum'' cultivated for its grain. The grain is used as food by humans, while the plant is used for animal feed and ethanol production. Sorghum originated in Africa, and is widely cultivated in tropical and subtropical regions. Sorghum is the world's fifth-most important cereal crop after rice, wheat, maize, and barley. Sorghum is typically an annual, but some cultivars are perennial. It grows in clumps that may reach over high. The grain is small, in diameter. Sweet sorghums are cultivars grown for forage, syrup production, and ethanol. They are taller than those grown for grain. Description Sorghum is a large stout grass that grows up to tall. It has large bushy flowerheads or panicles that provide an edible starchy grain with up to 3,000 seeds in each flowerhead. It grows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
