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Patriot (elm Cultivar)
''Ulmus'' 'Patriotis a hybrid cultivar raised by the United States National Arboretum in 1980. Derived from a crossing of the American hybrid 'Urban' (female parent) with the Wilson's Elm (now treated as Japanese Elm ''U. davidiana'' var. ''japonica'') cultivar 'Prospector', 'Patriot' was released to commerce, free of patent restrictions, in 1993.Tested in the US National Elm Trial coordinated by Colorado State University'Patriot' averaged a survival rate of 85% after 10 years. Description The tree develops an upsweeping crown, ultimately adopting a narrow vase-shape. The leaves are slightly leaf shape, obovate, with doubly serrate margins and typically acuminate apices; they are of an average size for the genus, The perfect flower, perfect, apetalous wind-pollinated flowers appear in March. Flowering usually begins when the tree is aged six years. Growth is vigorous; specimens in the USDA trials reaching a height of over 13 m (43 ft) and a spread of nearly 8 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus 'Urban'
''Ulmus'' 'Urban' is an American hybrid elm cultivar selected from the progeny of a controlled crossing of the Siberian Elm ''Ulmus pumila'' (female parent) with the Dutch clone '148' ( ''U. × hollandica'' 'Vegeta' × ''U. minor'' '28') in 1958 by Toru Arisumi of the USDA at Columbus, Ohio. Clone '148' had been sent to the US from the Netherlands in 1952 by Johanna Went, leader of the elm research team at the Willie Commelin Scholten Phytopathology Laboratory in Baarn.. Schippers, B & Roosje, G S (1997). Hundred years of history and the future of the Foundation ‘Willie Commelin Scholten Phytopathological Laboratory’. ''European Journal of Plant Pathology'', October 1997, Volume 103, Issue 7, 667–671. Description 'Urban' is considered a poor ornamental, the tree possessed of stiff branching and amorphous form. The lanceolate to obovate leaves are All these trees initially grew strongly on the heavy clay loam, attaining > 8 m in height in seven years. However, at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthogaleruca Luteola
''Xanthogaleruca luteola'', commonly known as the elm-leaf beetle, is a beetle species in the family Chrysomelidae that is native to Europe but invasive in other parts of the world.http://cisr.ucr.edu/elm_leaf_beetle.html - Center for Invasive Species Research Description The imago (adult beetle) is 6–8 mm in length, and ranges from yellow to green in colour, with a spot on its head, an hourglass mark and two spots on the pronotum, and a broad, dark stripe along the edge of each elytron. The larvae are usually black, occasionally black and yellow, with multiple rows of dots on the back and on the sides and < 13 mm long. The pupae are orange-yellow with black chaetae. The ova are yellow, and laid in spindle-like clusters of < 25 on the undersides of the elm leaves. Distribution These beetles are common in the Western Palearctic realm from Portugal to Central Asia. Indigenous to Europe, they were accidentally introduced to North America and Austra ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus 'Sapporo Autumn Gold'
''Ulmus'' 'Sapporo Autumn Gold' is one of the most commercially successful hybrid elm cultivars ever marketed, widely planted across North America and western Europe, although it has now been largely supplanted by more recent introductions.Santamour, J., Frank, S. & Bentz, S. (1995). Updated checklist of elm (Ulmus) cultivars for use in North America. ''Journal of Arboriculture'', 21: 3 (May 1995), 121–131. International Society of Arboriculture, Champaign, Illinois, US/ref> Arising from a chance crossing of the Ulmus davidiana var. japonica, Japanese elm (female parent) and Siberian elm, seed was sent in 1958 by Prof. Nobuku Takahashi and his colleagues at the Sapporo Botanical Garden of Hokkaido University, Sapporo,Smalley, E. B. and Guries, R. P. Asian Elms: Sources of Disease and Insect Resistance, in Dunn, C P. (ed.). (2000).''The Elms - Breeding, Conservation, and Disease Management.'' Springer Science + Business Media LLC., New York. to Eugene Smalley at the Univers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus 'New Horizon'
''Ulmus'' 'New Horizon' is an American hybrid cultivar raised by the Wisconsin Alumni Research Foundation (WARF), from a crossing of the Japanese Elm clone W43-8 = 'Reseda' (female parent) with Siberian Elm clone W426 grown from seed collected from a street tree at Yankton, South Dakota. Tested in the US National Elm Trial coordinated by Colorado State University'New Horizon' averaged a survival rate of 74% after 10 years.'New Horizon' was patented in the US in 1994, while in Europe, it is marketed as one of the 'Resista' elmprotected under EU Plant breeders' rights, breeders' rights (EU council decision 2100/94). Description Unlike its elder stablemate 'Sapporo Autumn Gold', 'New Horizon' initially has a compact, pyramidal form, with comparatively dense foliage comprising glabrous, dark-green, elliptical leaves The tree's growth habit is unusual; in an assessment at U C Davis as part of the National Elm Trial, its stem diameter increased faster than any other of the 15 c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus 'Regal'
''Ulmus'' 'Regal' is an American hybrid elm cultivar developed by the University of Wisconsin–Madison and released in 1983. 'Regal' was derived from seeds arising from the crossing of the Dutch hybrid clones 'Commelin' and '215' (''Ulmus pumila'' × 'Hoersholmiensis') sent in 1960 by Hans M. Heybroek of the Dorschkamp Research Institute for Forestry & Landscape Planning, Wageningen, Netherlands. Description 'Regal' has a strong central leader bestowing an upright columnar form similar to 'Commelin', making it particularly suitable for street planting.Santamour, J., Frank, S. & Bentz, S. (1995). Updated checklist of elm (Ulmus) cultivars for use in North America. ''Journal of Arboriculture'', 21:3 (May 1995), 121–131. International Society of Arboriculture, Champaign, Illinois, US/ref>Smalley, E. B. & Lester, D. T. (1983), ''HortScience'' 18: 960–961, 1983. The foliage is distinctively sparse, allowing dappled sunlight beneath the canop The leaves are narrowly lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus 'Frontier'
''Ulmus'' 'Frontier' is an American hybrid cultivarbr> a United States National Arboretum introduction (NA 55393) derived from a crossing of the European Field Elm ''Ulmus minor'' (female parent) with the Chinese Elm ''Ulmus parvifolia'' in 1971. Released in 1990, the tree is a rare example of the hybridization of spring- and autumn-flowering elms. Tested in the US National Elm Trial coordinated by Colorado State University'Frontier' averaged a survival rate of 74% after 10 years. Description 'Frontier' develops a vase or pyramidal shape, with glossy green foliage turning, unusually for elms, to burgundy (color), burgundy in autumn. The twigs are pubescent. Slow growing,McPherson, G. et al. (2008). National elm trial: Initial report from Northern California. ''Western Arborist'', Fall 2009, 32–36. the ultimate height of the tree has yet to be determined, but should be > 15 m. The tree is autumn-flowering Jacobson, Arthur Lee, 'Plant of the Month, 2008' arthurleej.com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Four Corners region with Utah to the north, Colorado to the northeast, and New Mexico to the east; its other neighboring states are Nevada to the northwest, California to the west and the Mexican states of Sonora and Baja California to the south and southwest. Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912. Historically part of the territory of in New Spain, it became part of independent Mexico in 1821. After being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase. Southern Arizona is known for its desert cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holbrook, Arizona
Holbrook ( nv, Tʼiisyaakin) is a city in Navajo County, Arizona, United States. According to the 2010 census, the population of the city was 5,053. The city is the county seat of Navajo County. Holbrook was founded in 1881 or 1882, when the railroad was built, and named to honor the first chief engineer of the Atlantic and Pacific Railroad, Henry Randolph Holbrook. History The Holbrook area was inhabited first by the Ancestral Puebloans, then Puebloans, then the Navajo and Apache. In 1540 (some seventy years before Jamestown or the Pilgrims) Coronado searched for the Seven Cities of Cibola and camped some 60 miles east of Holbrook. Coronado sent an expedition west to find the Colorado River, and they crossed the Little Colorado some twenty-five miles east of Holbrook and found a wonderland of colors they named "El Desierto Pintada" – The Painted Desert. The expedition was then led by the Hopis to the Grand Canyon. U.S. settlements After the Mexican–American War e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Arizona University
Northern Arizona University (NAU) is a public research university based in Flagstaff, Arizona. It was founded in 1899 as the final public university established in the Arizona Territory, 13 years before Arizona was admitted as the 48th state. NAU is one of the three universities governed by the Arizona Board of Regents and accredited by the Higher Learning Commission. As of fall 2022, 28,090 students were enrolled at NAU with 21,411 at the Flagstaff campus. The university is divided into seven academic colleges offering about 130 undergraduate degrees, 100 graduate programs, and various academic certificates. Students can take classes and conduct research in Flagstaff, online, and at more than 20 statewide locations, including the Phoenix Biomedical Campus. The university is classified among "R2: Doctoral Universities – High research activity" and ranked No. 183 in the National Science Foundation (NSF) national research rankings for fiscal year 2020. NAU's astronomy facult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elm Yellows
Elm yellows is a plant disease of elm trees that is spread by leafhoppers or by root grafts."Elm Yellows." Elmcare.Com. 19 Mar. 2008 . Elm yellows, also known as elm phloem necrosis, is very aggressive, with no known cure. Elm yellows occurs in the eastern United States, and southern Ontario in Canada. It is caused by phytoplasmas which infect the phloem (inner bark) of the tree.Price, Terry. "Wilt Diseases." Forestpests.Org. 23 Mar. 2005. 19 Mar. 2008 . Similar phytoplasmas, also known confusingly as 'Elm yellows', also occur in Europe.Conti, M., D'Agostino, G., Mittembergher, L. (1987) A recent epiphytotic of elm yellows in Italy. ''Proceedings of the 7th Congress of the Mediterranean Phytopathological Union'', 208–209. Consejeria de Agricultura y Pesca de la Junta de Andalucia, Granada, Spain Infection and death of the phloem effectively girdles the tree and stops the flow of water and nutrients. The disease affects both wild-growing and cultivated trees. Importance Elms are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohio
Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The state's capital and largest city is Columbus, with the Columbus metro area, Greater Cincinnati, and Greater Cleveland being the largest metropolitan areas. Ohio is bordered by Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest. Ohio is historically known as the "Buckeye State" after its Ohio buckeye trees, and Ohioans are also known as "Buckeyes". Its state flag is the only non-rectangular flag of all the U.S. states. Ohio takes its name from the Ohio River, which in turn originated from the Seneca word ''ohiːyo'', meaning "good river", "great river", or "large creek". The state arose from the lands west of the Appalachian Mountai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delaware, Ohio
Delaware is a city in and the county seat of Delaware County, Ohio, United States. Delaware was founded in 1808 and was incorporated in 1816. It is located near the center of Ohio, is about north of Columbus, and is part of the Columbus, Ohio metropolitan area. The population was 41,302 at the 2020 census, while the Columbus metropolitan area has 2,002,604 people. History While the city and county of Delaware are named for the Delaware tribe, the city of Delaware itself was founded on a Mingo village called Pluggy's Town. The first recorded settler was Joseph Barber in 1807. Shortly afterward, other men started settling in the area (according to the Delaware Historical Society); namely: Moses Byxbe, William Little, Solomon Smith, Elder Jacob Drake, Thomas Butler, and Ira Carpenter. In 1808, Moses Byxbe built the first framed house on William Street. Born in Delaware County in 1808, Charles Sweetser went on to become a member of the United States House of Representatives fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
