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Acalymma Obscurofasciatum
''Acalymma'' is a genus of leaf beetles found mainly in the New World. Approximately 72 species have been described in the Western Hemisphere. Pest Species and Impacts In the United States, two species are major pests of Cucurbitaceae, cucurbits, the striped cucumber beetle (''Acalymma vittatum''), which is mainly found east of the Mississippi River, and ''Acalymma trivittatum'' which is mostly found west of the Mississippi. Adults feed on young leaves, and larvae can damage roots. ''A. vittatum'' vectors bacterial wilt ''Erwinia tracheiphila'' Holland (Enterobacteriales: Enterobacteriaceae) to the plants as it pierces plant stems to suck juices. Species included The genus includes the following species: *''Acalymma albidovittatum'' (Baly, 1889) – cucumber beetle *''Acalymma bechynei'' Cabrera, 1999 *''Acalymma bertoluccii'' Gilbert & Clark, 2007 *''Acalymma bivittulum'' (Kirsch, 1883) (Synonym: ''A. xanthographa'' Bechyné, 1955) *''Acalymma blandulum'' (LeConte, 1868) *''Acal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Striped Cucumber Beetle
''Acalymma vittatum'', the striped cucumber beetle, is a beetle of the family Chrysomelidae and a serious pest of Cucurbita, cucurbit crops in both larval and adult stages. The striped cucumber beetle has a distinctive appearance, displaying a yellow-colored Elytron, elytra with black stripes. It is distributed from eastern North America to the Rocky Mountains and can be found as far south as Mexico and as far North as southern Canada. In western North America, past the Rocky Mountains, the striped cucumber beetle is replaced by ''Acalymma trivittatum'', a duller colored species often with grayish or pale white elytra rather than yellow. The striped cucumber beetle is unique in that it is resistant to a chemical, cucurbitacin, that is found in plants and serves as a defense mechanism against herbivores. In fact, the striped cucumber beetles are drawn towards this chemical; this is an example of coevolution, where one species evolves a phenotype against a defensive phenotype of an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray F
Ray or RAY may refer to: Fish * Ray (fish), any cartilaginous fish of the superorder Batoidea * Ray (fish fin anatomy), the bony or horny spine on ray-finned fish Science and mathematics * Half-line (geometry) or ray, half of a line split at an initial point * Directed half-line or ray, half of a directed or oriented line split at an initial point * Ray (graph theory), an infinite sequence of vertices such that each vertex appears at most once in the sequence and each two consecutive vertices in the sequence are the two endpoints of an edge in the graph * Ray (optics), an idealized narrow beam of light * Ray (quantum theory), an equivalence class of state-vectors representing the same state Arts and entertainment Music * The Rays, an American musical group active in the 1950s * Ray (musician), stage name of Japanese singer Reika Nakayama (born 1990) * Ray (girl group), a Japanese girl group formed in 2019 * Ray J, stage name of singer William Ray Norwood, Jr. (born 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acalymma Isogenum
''Acalymma'' is a genus of leaf beetles found mainly in the New World. Approximately 72 species have been described in the Western Hemisphere. Pest Species and Impacts In the United States, two species are major pests of cucurbits, the striped cucumber beetle (''Acalymma vittatum''), which is mainly found east of the Mississippi River, and ''Acalymma trivittatum'' which is mostly found west of the Mississippi. Adults feed on young leaves, and larvae can damage roots. ''A. vittatum'' vectors bacterial wilt '' Erwinia tracheiphila'' Holland (Enterobacteriales: Enterobacteriaceae) to the plants as it pierces plant stems to suck juices. Species included The genus includes the following species: *'' Acalymma albidovittatum'' (Baly, 1889) – cucumber beetle *'' Acalymma bechynei'' Cabrera, 1999 *'' Acalymma bertoluccii'' Gilbert & Clark, 2007 *'' Acalymma bivittulum'' (Kirsch, 1883) (Synonym: ''A. xanthographa'' Bechyné, 1955) *'' Acalymma blandulum'' (LeConte, 1868) *'' Acalymma bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
