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Jikradia Olitoria
''Jikradia olitoria'' is a species of leafhopper (family Cicadellidae) found mainly in eastern North America. The insect acts as a vector for the North American grapevine yellows Grapevine yellows (GY) are diseases associated to phytoplasmas that occur in many grape growing areas worldwide and are of still increasing significance. The most important grapevine yellows is flavescence dorée. Phytoplasmas are obligate cel .... References External links * Cicadellidae Insects described in 1830 {{auchenorrhyncha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leafhopper
A leafhopper is the common name for any species from the family Cicadellidae. These minute insects, colloquially known as hoppers, are plant feeders that suck plant sap from grass, shrubs, or trees. Their hind legs are modified for jumping, and are covered with hairs that facilitate the spreading of a secretion over their bodies that acts as a water repellent and carrier of pheromones. They undergo a partial metamorphosis, and have various host associations, varying from very generalized to very specific. Some species have a cosmopolitan distribution, or occur throughout the temperate and tropical regions. Some are pests or vectors of plant viruses and phytoplasmas. The family is distributed all over the world, and constitutes the second-largest hemipteran family, with at least 20,000 described species. They belong to a lineage traditionally treated as infraorder Cicadomorpha in the suborder Auchenorrhyncha, but as the latter taxon is probably not monophyletic, many mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grapevine Yellows
Grapevine yellows (GY) are diseases associated to phytoplasmas that occur in many grape growing areas worldwide and are of still increasing significance. The most important grapevine yellows is flavescence dorée. Phytoplasmas are obligate cell wall-less bacterial pathogens (class Mollicutes), and rely on plants and homopterous phloem-sucking insects for biological dispersal. In plants, they are mainly restricted to the phloem tissue where they can move and multiply through the sieve tube elements. Almost identical symptoms of the GY syndrome are caused by different phytoplasmas and appear on leaves, shoots and clusters of grapevine. Typical symptoms include discoloration and necrosis of leaf veins and leaf blades, downward curling of leaves, lack or incomplete lignification of shoots, stunting and necrosis of shoots, abortion of inflorescences and shrivelling of berries. Those symptoms are related to callose deposition at the sieve plates and subsequent degeneration of the phlo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jikradia Olitoria P1020571a
''Jikradia'' is a genus of leafhoppers (family Cicadellidae). There are over 20 described species in ''Jikradia''. Species * '' Jikradia bahamensis'' Nielson, 1979 * '' Jikradia basipendula'' Nielson, 1979 * '' Jikradia bispinosa'' Nielson, 1979 * '' Jikradia cornicula'' Nielson, 1979 * '' Jikradia costaricensis'' Nielson, 1979 * '' Jikradia dentata'' Nielson & Zack, 2014 * '' Jikradia exilis'' Nielson & Zack, 2014 * '' Jikradia floridana'' (Lawson, 1927) * '' Jikradia galapagoensis'' (Osborn, 1924) * '' Jikradia infula'' Nielson, 1989 * '' Jikradia krameri'' Nielson, 1979 * '' Jikradia lizanoi'' Godoy & Nielson, 1998 * '' Jikradia longa'' Godoy & Nielson, 1998 * '' Jikradia melanotus'' (Spångberg, 1878) * '' Jikradia mexicana'' Godoy & Nielson, 1998 * ''Jikradia olitoria ''Jikradia olitoria'' is a species of leafhopper (family Cicadellidae) found mainly in eastern North America. The insect acts as a vector for the North American grapevine yellows Grapevine yellows (GY) a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jikradia Olitoria
''Jikradia olitoria'' is a species of leafhopper (family Cicadellidae) found mainly in eastern North America. The insect acts as a vector for the North American grapevine yellows Grapevine yellows (GY) are diseases associated to phytoplasmas that occur in many grape growing areas worldwide and are of still increasing significance. The most important grapevine yellows is flavescence dorée. Phytoplasmas are obligate cel .... References External links * Cicadellidae Insects described in 1830 {{auchenorrhyncha-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
