Civil Rights
Movements, leaders, victories and the continuing fight for equality.
Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
In 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| Eriosoma | |
|---|---|
| Eriosoma ulmi | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | Pancrustacea |
| Class: | Insecta |
| Order: | Hemiptera |
| Suborder: | Sternorrhyncha |
| Family: | Aphididae |
| Subfamily: | Eriosomatinae |
| Tribe: | Eriosomatini |
| Genus: | Eriosoma Leach, 1818 |
Eriosoma is a genus of true bugs belonging to the family Aphididae.[1]
The species of this genus are found in Europe, Australia and Northern America.[1]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Eriosoma is a genus of true bugs belonging to the family Aphididae. The species of this genus are found in Europe, Australia and Northern America. Species: Eriosoma alabastrum Eriosoma americanum (C.V.Riley, 1879) — woolly elm aphid Eriosoma anncharlotteae Danielsson, 1979 Eriosoma flavum Jancke, 1930 Eriosoma grossulariae (Schüle, 1887) Eriosoma lanigerum (Hausemann, 1802) — woolly apple aphid Eriosoma lanuginosum (Hartig, 1839) Eriosoma patchiae (Börner & Blunck, 1916) Eriosoma pyricola (A.C.Baker & Davidson, 1916) — pear root aphid Eriosoma sorbiradicis Danielsson, 1979 Eriosoma ulmi (L., 1879) — elm-currant aphid
The Malling series is a group of rootstocks for grafting apple trees. It was developed at the East Malling Research Station of the South-Eastern Agricultural College at Wye in Kent, England. From about 1912, Ronald Hatton and his colleagues rationalised, standardised and catalogued the various rootstocks in use in Europe at the time under names such as Doucin and Paradise. Their first list had nine rootstock varieties, assigned the "type" numbers I–IX. The list later grew to twenty-four, and the Roman numerals gave way to Arabic numerals with the prefix "Malling" or "M.". From about 1917, collaboration between East Malling and the John Innes Institute, in Merton Park in Surrey, gave rise to the Malling-Merton series, which were resistant to Eriosoma lanigerum, the woolly apple aphid. Common Malling rootstocks in the 1940s: US M2, M7, M8, M9 and M13 UK M1, M2, M9, M12, M13 and M16. Germany M1, M2, M4, M5, M9, M11 and M16. Relative size are dependent on climate, variety and soil. a) East Malling vd= very dwarf, d= dwarf, sd= semidwarf, sv= semivigorous, v= vigorous, vv= very vigorous. b) Tukey, Dwarfed fruit trees, 1964 d= dwarf, sd=semidwarf, ss= semistandard, s= standard. c) Tukey, Dwarfed fruit trees, 1964 6= highest winter hardiness, 2= lowest winter hardiness.
Aphelinus mali is a parasitoid wasp that exploits the woolly apple aphid (Eriosoma lanigerum), a pest of apple trees. It is native to the northeastern United States but has been introduced to other parts of the world as a biological pest control agent.
Aphis spiraecola is a species of aphid described in 1914 by Edith Marion Patch. Its common names include green citrus aphid, Spirea aphid, and apple aphid. It is distributed worldwide, and is most abundant in the United States. It has a diploid chromosome number of 2n=8.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Shirley Chisholm, elected in 1968.