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Sooty Mould
Sooty mold (also spelled sooty mould) is a collective term for different Ascomycete fungi, which includes many genera, commonly ''Cladosporium'' and ''Alternaria''. It grows on plants and their fruit, but also environmental objects, like fences, garden furniture, stones, and even cars. The mold benefits from either a sugary exudate produced by the plant or fruit, or honeydew-secreting insects or sap suckers the plant may be infested by. Sooty mold itself does little if any harm to the plant. Treatment is indicated when the mold is combined with an insect infestation. Description Sooty mold is a collective, self-descriptive term for a number of different fungi; it is a black, powdery coating adhering to plants and their fruit or environmental objects. Biology The ecology of the different species, their interactions, relationship to the host are little understood. A chance observation of a '' Microcyclospora tardicrescens'' inhibiting the growth of the fruit pathogen ''Colletot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scale And Sooty Mold On A Eucalyptus Tree
Scale or scales may refer to: Mathematics * Scale (descriptive set theory), an object defined on a set of points * Scale (ratio), the ratio of a linear dimension of a model to the corresponding dimension of the original * Scale factor, a number which scales, or multiplies, some quantity * Long and short scales, how powers of ten are named and grouped in large numbers * Scale parameter, a description of the spread or dispersion of a probability distribution * Feature scaling, a method used to normalize the range of independent variables or features of data * Scale (analytical tool) Measurements * Scale (map), the ratio of the distance on a map to the corresponding actual distance * Scale (geography) * Weighing scale, an instrument used to measure mass * Scale (ratio), the ratio of the linear dimension of the model to the same dimension of the original * Spatial scale, a classification of sizes * Scale ruler, a tool for measuring lengths and transferring measurements at a fixed rat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitefly
Whiteflies are Hemipterans that typically feed on the undersides of plant leaves. They comprise the family Aleyrodidae, the only family in the superfamily Aleyrodoidea. More than 1550 species have been described. Description and taxonomy The Aleyrodidae are a family in the suborder Sternorrhyncha and at present comprise the entire superfamily Aleyrodoidea, related to the superfamily Psylloidea. The family often occurs in older literature as "Aleurodidae", but that is a junior synonym and accordingly incorrect in terms of the international standards for zoological nomenclature. Aleyrodidae are small insects, most species with a wingspan of less than 3 mm and a body length of 1 mm to 2 mm. Many are so small that their size complicates their control in greenhouses because they can only be excluded by screening with very fine mesh; in fact they can enter mesh so fine that many of their natural enemies cannot come in after them, so that unchecked whitefly population ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insecticide
Insecticides are pesticides used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively. The major use of insecticides is in agriculture, but they are also used in home and garden settings, industrial buildings, for vector control, and control of insect parasites of animals and humans. Acaricides, which kill mites and ticks, are not strictly insecticides, but are usually classified together with insecticides. Some insecticides (including common bug sprays) are effective against other non-insect arthropods as well, such as scorpions, spiders, etc. Insecticides are distinct from insect repellents, which repel but do not kill. Sales In 2016 insecticides were estimated to account for 18% of worldwide pesticide sales. Worldwide sales of insecticides in 2018 were estimated as $ 18.4 billion, of which 25% were neonicotinoids, 17% were pyrethroids, 13% were diamides, and the rest were many other classes which sold for less th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neem Oil
Neem oil, also known as margosa oil, is a vegetable oil pressed from the fruits and seeds of the neem (''Azadirachta indica''), a tree which is indigenous to the Indian subcontinent and has been introduced to many other areas in the tropics. It is the most important of the commercially available products of neem, and is a potent pesticide used in organic farming. Composition Azadirachtin is the most well known and studied triterpenoid in neem oil. nimbin (chemical), Nimbin is another triterpenoid which has been credited with some of neem oil's properties as an antiseptic, antifungal, antipyretic and antihistamine. Uses Ayurveda Neem oil has a history of use in Ayurvedic traditional medicine, folk medicine. Pesticide Formulations that include neem oil have found wide usage as a biopesticide for horticulturists and for organic farming, as it repels a wide variety of insect pests including mealy bugs, beet armyworms, aphids, cabbage worms, thrips, whiteflies, mites, fungu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus
''Citrus'' is a genus of flowering trees and shrubs in the family Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, mandarins, lemons, grapefruits, pomelos, and limes. ''Citrus'' is native to South Asia, East Asia, Southeast Asia, Melanesia, and Australia. Indigenous people in these areas have used and domesticated various species since ancient times. Its cultivation first spread into Micronesia and Polynesia through the Austronesian expansion (–1500 BCE). Later, it was spread to the Middle East and the Mediterranean () via the incense trade route, and from Europe to the Americas. Renowned for their highly fragrant aromas and complex flavor, citrus are among the most popular fruits in cultivation. With a propensity to hybridize between species, making their taxonomy complicated, there are numerous varieties encompassing a wide range of appearance and fruit flavors. Evolution Evolutionary history The large cit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pecan
The pecan ( , , ; ''Carya illinoinensis'') is a species of hickory native to the Southern United States and northern Mexico in the region of the Mississippi River. The tree is cultivated for its seed primarily in the U.S. states of Georgia (U.S. state), Georgia, New Mexico, and Texas, and in Mexico. The seed is an edible nut used as a snack and in various recipes, such as Praline (nut confection), praline candy and pecan pie. The pecan is the state nut of Alabama, Arkansas, California, Texas, and Louisiana, and is also the state tree of Texas. Name derives from an Algonquian languages, Algonquian word variously referring to pecans, walnuts, and hickory nuts. There are many pronunciations, some regional and others not.See "wikt:pecan#Pronunciation, Pecan" at wikt:Main Page, Wiktionary. There is little agreement in the United States regarding the "correct" pronunciation, even regionally. In 1927, the National Pecan Growers Association acknowledged variant pronunciations whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meliola Juttingii
''Meliola'' is a large genus of fungi in the family Meliolaceae. It was circumscribed by Swedish mycologist Elias Magnus Fries in 1825. Species , Species Fungorum (in the Catalogue of Life The Catalogue of Life (CoL) is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxono ...) accepts 1701 species of ''Meliola'', Outline of Fungi notes 1700 species. Species in the genus include: *'' Meliola brevispora'' *'' Meliola evansii'' *'' Meliola mangiferae'' *'' Meliola wainioi'' *'' Meliola zangii'' See also List of Meliola species References Fungal plant pathogens and diseases Meliolaceae Taxa described in 1825 Taxa named by Elias Magnus Fries {{Sordariomycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karuka
The karuka (''Pandanus julianettii'', also called karuka nut and ''Pandanus'' nut) is a species of tree in the screwpine family (Pandanaceae) and an important regional food crop in New Guinea. The nuts are more nutritious than coconuts, and are so popular that villagers in the New Guinea Highlands, highlands will move their entire households closer to trees for the harvest season. Description The species was originally Species description, described in 1908 by Ugolino Martelli from only a few drupes in the collections of the Royal Botanic Gardens, Kew He was hesitant to describe it as a new species from only that, but the characteristics were so salient he published his description. The tree is dioecious (individual plants either have male flowers or female ones), with male trees uncommon compared to females. It reaches in height, with a grey Trunk (botany), trunk of in diameter and supported by prop roots or flying buttress roots up to forty feet (twelve meters) in length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bay Laurel
''Laurus nobilis'' is an aromatic evergreen tree or large shrub with green, glabrous (smooth) leaves. It is in the flowering plant family Lauraceae. According to Flora Cretica (Kleinsteuber Books, 2024, ISBN 978-3-9818110-5-6) the stem can be 1 meter in diameter; the tree can be as high as 20 metres. It is native to the Mediterranean region and is used as bay leaf for seasoning in cooking. Its common names include bay tree (esp. United Kingdom), bay laurel, sweet bay, true laurel, Grecian laurel, or simply laurel. ''Laurus nobilis'' figures prominently in classical Greco-Roman culture. Worldwide, many other kinds of plants in diverse families are also called "bay" or "laurel", generally due to similarity of foliage or aroma to ''Laurus nobilis''. Description The laurel is an evergreen shrub or small tree, variable in size and sometimes reaching tall. The genus ''Laurus'' includes three accepted species, whose diagnostic key characters often overlap. The bay laurel is di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangifera
''Mangifera'' is a genus of flowering plants in the cashew family, Anacardiaceae. It contains 64 species, with the best-known being the common mango ('' Mangifera indica''). The center of diversity of the genus is in the Malesian ecoregion of Southeast Asia, particularly in Sumatra, Borneo, and the Malay Peninsula. They are generally canopy trees in lowland rainforests, reaching a height of . Uses ''Mangifera'' species are widely cultivated in Asia and elsewhere. More than 27 species in the genus bear edible, fleshy fruits, especially the common mango (''M. indica''). Others, such as '' M. foetida'', yield astringent fruits that can be eaten pickled. Mango wastes, such as the seed kernel and peel, have high functional and nutritional potential. Mango seed contains important bioactive compounds that have high antioxidant activity, lipids that have acceptable physical and chemical characteristics (free of ''trans'' fatty acids), and a somewhat high (about 6%) protein content. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crepe Myrtle
''Lagerstroemia'' (), commonly known as crape myrtle (also spelled crepe myrtle or crêpe myrtle), is a genus of around 50 species of deciduous and evergreen trees and shrubs native to the Indian subcontinent, southeast Asia, northern Australia, and other parts of Oceania, cultivated in warmer climates around the world. It is a member of the family Lythraceae, which is also known as the loosestrife family. These flowering trees are beautifully colored and are often planted both privately and commercially as ornamentals. Etymology The genus ''Lagerstroemia'' was first described by Carl Linnaeus. It is named after Swedish merchant , a director of the Swedish East India Company, who supplied Linnaeus with plants he collected. Description Crape myrtles are chiefly known for their colorful and long-lasting flowers, which occur in summer. Most species of ''Lagerstroemia'' have sinewy, fluted stems and branches with a mottled appearance that arises from having bark that sheds through ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camellias
''Camellia'' (pronounced or ) is a genus of flowering plants in the family Theaceae. They are found in tropical and subtropical areas in eastern and southern Asia, from the Himalayas east to Japan and Indonesia. There are more than 220 described species; almost all are found in southern China and Indochina. Camellias are popular ornamental, tea, and woody-oil plants cultivated worldwide for centuries. Over 26,000 cultivars, with more than 51,000 cultivar names, including synonyms, have been registered or published. The leaves of '' C. sinensis'' are processed to create tea, and so are of particular economic importance in East Asia, Southeast Asia, and the Indian subcontinent, with the processed leaves widely sold and consumed globally. The ornamental '' C. japonica'', '' C. sasanqua'' and their hybrids are the source of hundreds of garden cultivars. '' C. oleifera'' produces tea seed oil, used in cooking and cosmetics. Description Camellias are evergreen shrubs or small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
