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Heterotermes Indicola
''Heterotermes indicola'', is a species of subterranean termite of the genus ''Heterotermes''. It is native to tropical India, Pakistan and Sri Lanka but has extended its range into the subtropics and warm temperate areas of the Himalayan foothills to altitudes of about . It causes damage to timber in buildings and is one of the most destructive termites in urban and agricultural areas in the world. Soldiers are about 4.1-4.9mm long. Extracts of garlic and '' Calotropis procera'' are known to have termiticidal effects on ''H. indicola''. Ecology Subterranean termites live in colonies underground, with no mounds or above-ground structures to indicate that they are present. Sugarcane can be severely attacked causing 90 to 100% damage, fruit orchards 80 to 90% damage, maize 45% damage and wheat 10 to 12% damage. Another crop attacked by this termite is the bitter melon (''Momordica charantia''). This termite favours a soil moisture content of 20 to 30%, and a timber moisture conten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erich Wasmann
Erich Wasmann (29 May 1859 in Merano − 27 February 1931 in Valkenburg, Netherlands) was an Austrian (born in South Tyrol) entomologist, specializing in ants and termites, and Jesuit priest. He described the phenomenon known as Wasmannian mimicry and became a prominent Catholic popularizer of science, grounded in Christian beliefs, around 1900. Wasmann was a supporter of evolution, although he did not accept the productivity of natural selection, the evolution of humans from other animals, or universal common descent of all life. Rather, he believed that common ancestry was restricted to what he called "natural species" which were generally larger groups than species (which he called "systematic species"), genera, or even families. His natural species he identified with the "paleontological species" of Melchior Neumayr. Wasmann's reflections on evolution, while viewed with some concern by his Jesuit superiors, were popular among Catholics; he was invited to write an article ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedrus Deodara
''Cedrus deodara'', the deodar cedar, Himalayan cedar, or deodar, is a species of cedar native to the Himalayas. Description It is a large evergreen coniferous tree reaching tall, exceptionally with a trunk up to in diameter. It has a conic crown with level branches and drooping branchlets. The leaves are needle-like, mostly long, occasionally up to long, slender ( thick), borne singly on long shoots, and in dense clusters of 20–30 on short shoots; they vary from bright green to glaucous blue-green in colour. The female cones are barrel-shaped, long and broad, and disintegrate when mature (in 12 months) to release the winged seeds. The male cones are long, and shed their pollen in autumn. Chemistry The bark of ''Cedrus deodara'' contains large amounts of taxifolin. The wood contains cedeodarin, ampelopsin, cedrin, cedrinoside, and deodarin (3′,4′,5,6-tetrahydroxy-8-methyl dihydroflavonol). The main components of the needle essential oil include α-terpine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Roxberghii
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family (biology), family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accepts 187 species names of pines as current, together with more synonyms. The American Conifer Society (ACS) and the Royal Horticultural Society accept 121 species. Pines are commonly found in the Northern Hemisphere. ''Pine'' may also refer to the lumber derived from pine trees; it is one of the more extensively used types of lumber. The pine family is the largest conifer family and there are currently 818 named cultivars (or Trinomial nomenclature, trinomials) recognized by the ACS. Description Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing tall, with the majority of species reaching tall. The smallest are Siberian dwarf pine and Potosi pinyon, and the tallest is an tall ponderosa pine lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
