|
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 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 ''Colletotri ... [...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 * 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 ratio of length * Verni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Horticultural Society
The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (North Yorkshire), Rosemoor (Devon) and Bridgewater (Greater Manchester); flower shows including the Chelsea Flower Show, Hampton Court Palace Flower Show, Tatton Park Flower Show and Cardiff Flower Show; community gardening schemes; Britain in Bloom and a vast educational programme. It also supports training for professional and amateur gardeners. the president was Keith Weed and the director general was Sue Biggs CBE. History Founders The creation of a British horticultural society was suggested by John Wedgwood (son of Josiah Wedgwood) in 1800. His aims were fairly modest: he wanted to hold regular meetings, allowing the society's members the opportunity to present papers on their horticultural activities and discoveries, to enc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malathion
Malathion is an organophosphate insecticide which acts as an acetylcholinesterase inhibitor. In the USSR, it was known as carbophos, in New Zealand and Australia as maldison and in South Africa as mercaptothion. Pesticide use Malathion is a pesticide that is widely used in agriculture, residential landscaping, public recreation areas, and in public health pest control programs such as mosquito eradication. In the US, it is the most commonly used organophosphate insecticide. A malathion mixture with corn syrup was used in the 1980s in Australia and California to combat the Mediterranean fruit fly. In Canada and the US starting in the early 2000s, malathion was sprayed in many cities to combat west Nile virus. Malathion was used over the last couple of decades on a regular basis during summer months to kill mosquitoes, but homeowners were allowed to exempt their properties if they chose.. Mechanism of action Malathion is an acetylcholinesterase inhibitor, a diverse family of chemic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acephate
Acephate is an organophosphate foliar and soil insecticide of moderate persistence with residual systemic activity of about 10–15 days at the recommended use rate. It is used primarily for control of aphids, including resistant species, in vegetables (e.g. potatoes, carrots, greenhouse tomatoes, and lettuce) and in horticulture (e.g. on roses and greenhouse ornamentals). It also controls leaf miners, caterpillars, sawflies, thrips, and spider mites in the previously stated crops as well as turf, and forestry. By direct application to mounds, it is effective in destroying imported fire ants. Acephate is sold as a soluble powder, as emulsifiable concentrates, as pressurized aerosol, and in tree injection systems and granular formulations. As of 2012, the EPA no longer allows the usage of acephate on green beans grown in the United States. Toxicology It is considered non-phytotoxic on many crop plants. Acephate and its primary metabolite, methamidophos, are toxic to Heliothis spp. ... [...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 used for organic farming and medicines. Composition Azadirachtin is the most well known and studied triterpenoid in neem oil. 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 Ayurveda folk medicine. There is limited evidence for its use in treating acute skin toxicity in head and neck cancer chemotherapy involving cisplatin. Toxicity The ingestion of neem oil is potentially toxic and can cause metabolic acidosis, seizures, kidney failure, encephalopathy and severe brain ischemia in infants and young children. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus
''Citrus'' is a genus of flowering plant, flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as Orange (fruit), oranges, Lemon, lemons, grapefruits, pomelos, and lime (fruit), limes. The genus ''Citrus'' is native to South Asia, East Asia, Southeast Asia, Melanesia, and Australia (continent), Australia. Various citrus species have been used and domesticated by indigenous cultures in these areas since ancient times. From there its cultivation spread into Micronesia and Polynesia by the Austronesian expansion (c. 3000–1500 BCE); and to the Middle East and the Mediterranean (c. 1200 BCE) via the incense trade route, and onwards to Europe and the Americas. History Citrus plants are native to subtropical and tropical regions of Asia, Island Southeast Asia, Near Oceania, and northeastern Australia. Domestication of citrus species involved much hybridization and introgression, leaving much uncertainty ab ... [...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 in the southern United States, primarily in Georgia, New Mexico, Texas, and Mexico, which produces nearly half of the world total. The seed is an edible nut used as a snack and in various recipes, such as praline candy and pecan pie. The pecan is the state nut of Alabama, Arkansas, California, and Texas and is also the state tree of Texas. Name "Pecan" is from an Algonquin word, variously referring to pecans, walnuts, and hickory nuts. There are many pronunciations, some regional and others not.See "Pecan" at Wiktionary. The most common American pronunciation is . There is little agreement in the United States regarding the "correct" pronunciation, even regionally. Growth The pecan tree is a large deciduous tree, growing to in height, rarely to .Flora of North America''Carya illinoi ... [...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) accepts 1701 species of ''Meliola''. Species in the genus include: *''Meliola brevispora'' *''Meliola evansii'' *''Meliola mangiferae'' *''Meliola wainioi'' *''Meliola zangii ''Meliola zangii'' is a species of fungus in the family Meliolaceae that is found in China. It was described as new to science in 2003 by Bin Song. The specific epithet honours mycologist Mu Zang, who collected the type specimen on 22 Septem ...'' 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 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 highlands will move their entire households closer to trees for the harvest season. Names The specific epithet "''julianettii''" honors naturalist Amedeo Giulianetti, who found the original type specimens. is a loanword from Tok Pisin. Sometimes the tree is called '' or 'karuka nut pandanus'. The term 'karuka' can apply to both ''Pandanus julianettii'' and '' P. brosimos'', though the latter is usually called 'wild karuka'. Both species, as well as '' P. dubius'', can be called 'pandanus nut'. In addition to ''P. brosimos'', 'wild karuka' can also refer to '' P. antaresensis'', '' P. iwen'', and '' P. limbatus'', but nuts from these trees are a much smaller part of the local diet. In contexts where multiple k ... [...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. 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 four accepted species, whose diagnostic key characters often overlap. The bay laurel is dioecious (unisexual), with male and female flowers on separate plants. Each flower is pale yellow-green, about diameter, and they are borne in pairs besid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangifera
''Mangifera'' is a genus of flowering plants in the cashew family, Anacardiaceae. It contains approximately 69 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 high protein content. The mango peel ... [...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. The genus is named after Swedish merchant Magnus von Lagerström, a director of the Swedish East India Company, who supplied Carl Linnaeus with plants he collected. These flowering trees are beautifully colored and are often planted both privately and commercially as ornamentals. 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 throughout the year. The leaves are opposite and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
