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Vasates
''Vasates'' is a genus of mites in the family Eriophyidae, which cause galls on the leaves of trees, including the following species: *''Vasates aceriscrumena'' (Riley & Vasey, 1870) *''Vasates quadripedes'' (Henry Shimer, Shimer, 1869) References Eriophyidae Trombidiformes genera Taxa named by Henry Shimer {{Trombidiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vasates Aceriscrumena
''Vasates'' is a genus of mites in the family Eriophyidae, which cause galls on the leaves of trees, including the following species: *''Vasates aceriscrumena'' (Riley & Vasey, 1870) *''Vasates quadripedes'' (Henry Shimer, Shimer, 1869) References Eriophyidae Trombidiformes genera Taxa named by Henry Shimer {{Trombidiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vasates Quadripedes
''Vasates quadripedes'', the maple bladder-gall mite, is an eriophyid mite in the genus ''Vasates'', which causes galls on the leaves of silver maple (''Acer saccharinum ''Acer saccharinum'', commonly known as silver maple, creek maple, silverleaf maple, soft maple, large maple, water maple, swamp maple, or white maple, is a species of maple native to the eastern and central United States and southeastern Canad ...''), red maple ('' A. rubrum''), and sugar maple ('' A. saccharum''). The gall is rounded, sometimes elongate, and has a short, thin neck. Typically, galls are in diameter, and may be numerous on the upper surfaces of leaves. They have an opening in the lower surface. At first they are yellowish-green or bright red, later they become dark red and black. In Britain, the mite affects introduced silver maple. The species is relatively new to Britain, being first recorded in London in 2002. References Eriophyidae Animals described in 1869 Arachnids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriophyidae
Eriophyidae is a family of more than 200 genera of mites, which live as plant parasites, commonly causing galls or other damage to the plant tissues and hence known as gall mites. About 3,600 species have been described, but this is probably less than 10% of the actual number existing in this poorly researched family. They are microscopic mites and are yellow to pinkish white to purplish in color. The mites are worm like, and have only two pairs of legs. Their primary method of population spread is by wind. They affect a wide range of plants, and several are major pest species causing substantial economic damage to crops. Some species, however, are used as biological agents to control weeds and invasive plant species. Notable species Notable species in this family include: *''Abacarus hystrix'', the cereal rust mite *'' Abacarus sacchari'', the sugarcane rust mite *'' Acalitus essigi'', the redberry mite, which affects blackberries *''Aceria chondrillae'', the chondrilla gall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Shimer
Henry Shimer (September 21, 1828 – July 28, 1895) was a naturalist and physician in Mount Carroll, Illinois. He was also a teacher at the Mount Carroll Seminary, which later became Shimer College; he was the husband of the seminary's founder, Frances Shimer. Biography Early life Shimer was born on September 21, 1828, in West Vincent Township, Chester County, Pennsylvania. He worked as a stone mason in his youth and took up teaching at the age of 18. In March 1854, Shimer left Pennsylvania and traveled west to Mount Carroll, Illinois after a failed love affair. He may have done work on the construction or expansion of the Mount Carroll Seminary, for which the owners were unable to pay him. Marriage On December 22, 1857, Shimer and Frances Ann Wood, the co-principal of the Mount Carroll Seminary, were married. Their union was widely reputed to be a marriage of convenience. Vocations Shimer subsequently left for Chicago to study medicine. He graduated from the Chicago ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mite
Mites are small arachnids (eight-legged arthropods). Mites span two large orders of arachnids, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari, but genetic analysis does not show clear evidence of a close relationship. Most mites are tiny, less than in length, and have a simple, unsegmented body plan. The small size of most species makes them easily overlooked; some species live in water, many live in soil as decomposers, others live on plants, sometimes creating galls, while others again are Predation, predators or Parasitism, parasites. This last type includes the commercially destructive ''Varroa'' parasite of honey bees, as well as scabies mites of humans. Most species are harmless to humans, but a few are associated with allergies or may transmit diseases. The scientific discipline devoted to the study of mites is called acarology. Evolution and taxonomy The mites are not a defined taxon, but is used for two disti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gall
Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to benign tumors or warts in animals. They can be caused by various parasites, from viruses, fungi and bacteria, to other plants, insects and mites. Plant galls are often highly organized structures so that the cause of the gall can often be determined without the actual agent being identified. This applies particularly to some insect and mite plant galls. The study of plant galls is known as cecidology. In human pathology, a gall is a raised sore on the skin, usually caused by chafing or rubbing. Causes of plant galls Insects and mites Insect galls are the highly distinctive plant structures formed by some herbivorous insects as their own microhabitats. They are plant tissue which is controlled by the insect. Galls act as both the habitat a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Field Studies Council
Field Studies Council is an educational charity based in the UK, which offers opportunities for people to learn about and engage with the outdoors. History It was established as the Council for the Promotion of Field Studies in 1943 with the vision to provide opportunities for school children to study plants and animals in their natural environment. It subsequently became a nationwide provider of outdoor education, delivering opportunities for people of all ages and abilities to discover explore the environment in many different forms, and has established a network of field centres providing facilities for people wanting to study natural history, ecology and the environment. Activities Field Studies Council provides outdoor educational residential or day visits from the organisation's centres, and other outreach areas, including London Parks. The centres include: * Amersham Field Centre, Buckinghamshire *Bishops Wood, Worcestershire *Blencathra, Cumbria * Castle Head, Grange ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trombidiformes Genera
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 fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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