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Penthaleus Major
''Penthaleus major'', known generally as the winter grain mite or blue oat mite, is a species of earth mite in the family Penthaleidae. They are black or dark blue in color and are widespread across the world. They are commonly found on oats and in pastures and spend most of their time on the surface of soil, and are occasionally found on wheat, barley, peas, lentil and lucerne, and seldom on canola. Description The blue oat mite measures anywhere from 1/32 to 1/16 inch, and has orange-red legs and a dark blue to black body with a red or orange spot on its upper abdomen. Their front legs are barely the longest. Blue oat mite anuses are dorsal. Right after they hatch from their eggs, these mites are pink-orange colored, then brownish in a short time, before turning green and eventually becoming adults. Blue oat mite larvae are about 0.3 millimeters in length, 6-legged, and oval. Distribution and habitat The blue oat mite has been reported across the world, in New Zealand, Austra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfredo Dugès
Alfredo Dugès (birth name- Alfred Auguste Delsescautz Dugès); (16 April 1826 – 7 January 1910) was a French-born, Mexican physician and naturalist born in Montpellier. He was the son of zoologist Antoine Louis Dugès (1797-1838). Alfredo Dugès is largely remembered for his extensive studies of Mexican herpetology. He studied medicine at the University of Paris, and in 1852 emigrated to Mexico. He settled in Guanajuato, where he worked as an Obstetrics, obstetrician, also giving classes in natural history at the ''Escuela de Estudios Superiores de Guanajuato''. With his brother, Entomology, entomologist Eugenio Dugès (1826-1895), he organized frequent field trips in order to collect specimens. Dugès published numerous scientific papers in several fields including herpetology, botany, and entomology. At Guanajuato, he was director of the local museum, later named the ''Museo Alfredo Dugès'' (:es:Museo Alfredo Dugès, es) in his honor. In Mexico, he described 40 new species of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phleum Pratense
Timothy (''Phleum pratense'') is an abundant perennial grass native to most of Europe except for the Mediterranean region. It is also known as timothy-grass, meadow cat's-tail or common cat's tail. It is a member of the genus ''Phleum'', consisting of about 15 species of annual and perennial grasses. It is probably named after Timothy Hanson, an American farmer and agriculturalist said to have introduced it from New England to the southern states in the early 18th century. Upon his recommendation it became a major source of hay and cattle fodder to British farmers in the mid-18th century. Timothy can be confused with meadow foxtail (''Alopecurus pratensis'') or purple-stem cat's-tail (''Phleum phleoides''). Description Timothy grows to tall, with leaves up to long and broad. The leaves are hairless, rolled rather than folded, and the lower sheaths turn dark brown. It has no stolons or rhizomes, and no auricles. The flowerhead is long and broad, with densely packed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombidiformes
The Trombidiformes are a large, diverse order of mites. Taxonomy In 1998, Trombidiformes was divided into the Sphaerolichida and the Prostigmata. The group has few synapomorphies by which it can be defined, unlike the other major group of acariform mites, Sarcoptiformes. Its members include medically important mites (such as ''Demodex'', the chiggers, and scrub-itch mites) and many agriculturally important species, including the spider mites (Tetranychidae). The superfamily Eriophyoidea, traditionally considered members of the Trombidiformes, have been found to be basal mites in genomic analyses, sister to the clade containing Sarcoptiformes and Trombidiformes. The 2004 classification retained the two suborders, comprising around 125 families and more than 22,000 described species. In the 2011 revised classification, the order now contains 151 families, 2235 genera and 25,821 species, and there were another 10 species with 24 species that present only as fossils. These 151 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deltamethrin
Deltamethrin is a pyrethroid ester insecticide. Deltamethrin plays a key role in controlling malaria vectors, and is used in the manufacture of long-lasting insecticidal mosquito nets; however, resistance of mosquitos and bed bugs to deltamethrin has seen a widespread increase. Deltamethrin is toxic to aquatic life, particularly fish. Although generally considered safe to use around humans, it is still neurotoxic. It is an allergen and causes asthma in some people. Usage Deltamethrin is a highly effective insecticide. It is used, among other applications, for the production of long-lasting insecticidal nets (LLINs), which, along with indoor residual spraying (IRS), are the main vector control strategies recommended by the World Health Organization (WHO) for the management of malaria. Deltamethrin plays a key role in controlling malaria vectors, and is used in the manufacture of long-lasting insecticidal mosquito nets. It is used as one of a battery of pyrethroid insecticides in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permethrin
Permethrin is a medication and an insecticide. As a medication, it is used to treat scabies and lice. It is applied to the skin as a cream or lotion. As an insecticide, it can be sprayed onto clothing or mosquito nets to kill the insects that touch them. Side effects include rash and irritation at the area of use. Use during pregnancy appears to be safe. It is approved for use on and around people over the age of two months. Permethrin is in the pyrethroid family of medications. It works by disrupting the function of the neurons of lice and scabies mites. Permethrin was discovered in 1973. It is on the World Health Organization's List of Essential Medicines. In 2020, it was the 427th most commonly prescribed medication in the United States, with more than 100thousand prescriptions. Uses Insecticide * In agriculture, to protect crops (a drawback is that it is lethal to bees) * In agriculture, to kill livestock parasites * For industrial and domestic insect control * In th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diapause
In animal dormancy, diapause is the delay in development in response to regular and recurring periods of adverse environmental conditions.Tauber, M.J., Tauber, C.A., Masaki, S. (1986) ''Seasonal Adaptations of Insects''. Oxford University Press It is a physiological state with very specific initiating and inhibiting conditions. The mechanism is a means of surviving predictable, unfavorable environmental conditions, such as temperature extremes, drought, or reduced food availability. Diapause is observed in all the life stages of arthropods, especially insects. Embryonic diapause, a somewhat similar phenomenon, occurs in over 130 species of mammals, possibly even in humans, and in the embryos of many of the oviparous species of fish in the order Cyprinodontiformes. Activity levels of diapausing stages can vary considerably among species. Diapause may occur in a completely immobile stage, such as the pupae and eggs, or it may occur in very active stages that undergo extensive migrat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alopecurus Pratensis
''Alopecurus pratensis'', known as the meadow foxtail or the field meadow foxtail, is a Perennial plant, perennial grass belonging to the grass family (Poaceae). It is native to Europe and Asia. This common plant is found on grasslands, especially on neutral soils. It is found on moist, fertile soils, but avoids waterlogged, light or dry soils. The species forms dense swards leading to low botanical diversity. This species is widely cultivated for pasture and hay, and has become Naturalisation (biology), naturalised in many areas outside its native range, including Australia and North America. Description It flowers from April until June – one of the earliest grasses to do so. Any survey work carried out in mid-summer may miss the grass as a result of this. It can grow to a height of about . The Plant stem, stem is erect and hard at the shaft, the sheathes being smooth and cylindrical. The Leaf, leaves are about wide and hairless. Meadow foxtail has a cylindrical infloresce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epidermis (botany)
The epidermis (from the Greek ''ἐπιδερμίς'', meaning "over-skin") is a single layer of cells that covers the leaves, flowers, roots and stems of plants. It forms a boundary between the plant and the external environment. The epidermis serves several functions: it protects against water loss, regulates gas exchange, secretes metabolic compounds, and (especially in roots) absorbs water and mineral nutrients. The epidermis of most leaves shows dorsoventral anatomy: the upper (adaxial) and lower (abaxial) surfaces have somewhat different construction and may serve different functions. Woody stems and some other stem structures such as potato tubers produce a secondary covering called the periderm that replaces the epidermis as the protective covering. Description The epidermis is the outermost cell layer of the primary plant body. In some older works the cells of the leaf epidermis have been regarded as specialized parenchyma cells,Hill, J. Ben; Overholts, Lee O; Popp, H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Oat Mite Czechia
Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when observing light with a dominant wavelength between approximately 450 and 495 nanometres. Most blues contain a slight mixture of other colours; azure contains some green, while ultramarine contains some violet. The clear daytime sky and the deep sea appear blue because of an optical effect known as Rayleigh scattering. An optical effect called Tyndall effect explains blue eyes. Distant objects appear more blue because of another optical effect called aerial perspective. Blue has been an important colour in art and decoration since ancient times. The semi-precious stone lapis lazuli was used in ancient Egypt for jewellery and ornament and later, in the Renaissance, to make the pigment ultramarine, the most expensive of all pigments. In the ei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorophyll
Chlorophyll (also chlorophyl) is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Its name is derived from the Greek words , ("pale green") and , ("leaf"). Chlorophyll allow plants to absorb energy from light. Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum. Hence chlorophyll-containing tissues appear green because green light, diffusively reflected by structures like cell walls, is less absorbed. Two types of chlorophyll exist in the photosystems of green plants: chlorophyll ''a'' and ''b''. History Chlorophyll was first isolated and named by Joseph Bienaimé Caventou and Pierre Joseph Pelletier in 1817. The presence of magnesium in chlorophyll was discovered in 1906, and was that element's first detection in living tissue. After initial work done by German chemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ministry Of Agriculture (Brazil)
The Ministry of Agriculture, Livestock, and Food Supply (''Ministério da Agricultura, Pecuária e Abastecimento'', abbreviated MAPA) is a federal department in Brazil. The jurisdiction of this ministry is to formulate and implement policies for agribusiness development, integrating the aspects of market, technological, organizational and environmental care for the consumers of the country and abroad, promoting food security, income generation and employment, reducing inequalities and increasing social inclusion. The Ministry was founded during the Brazilian Empire in 1860. Originally named ''Secretaria de Estado dos Negócios da Agricultura, Comércio e Obras Públicas'', the body was extinguished in the early years of the First Brazilian Republic and re-established in 1906 as the ''Ministerio dos Negocios da Agricultura, Industria e Commercio''. In 1930, it was renamed the ''Ministério da Agricultura''. Agroenergy Brazil is the world leader in producing agroenergy and the Mini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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