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Trioza Alacris
''Trioza alacris'' is a sap-sucking hemipteran bug in the family ''Triozidae'' which creates galls on the leaves of ''Laurus'' species. It is found in Europe. Description of the gall ''Trioza alacris'' causes the edges of leaves to thicken and roll downwards forming pale, elongated pouches. The galls can house two generations in a summer, of up to thirty pale-green nymphs, which are covered in a white wax. Adults can also be found in the gall. The adults usually overwinter in leaf litter but can also spend the winter in the gall. Species of ''Laurus'' galled include the Azores laurel (''Laurus azorica''), bay tree (''Laurus nobilis''), ''Laurus novocanariensis'' and ''Persea indica ''Persea indica'' is a large, evergreen tree in the laurel family (Lauraceae), native to humid uplands on Madeira and the Canary Islands in the North Atlantic. It belongs to the genus ''Persea'', a group of evergreen trees including the avocado. ...''. References Triozidae Hemiptera of Europe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiptera
Hemiptera (; ) is an order (biology), order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, Reduviidae, assassin bugs, Cimex, bed bugs, and shield bugs. They range in size from to around , and share a common arrangement of piercing-sucking Insect mouthparts, mouthparts. The name "true bugs" is often limited to the suborder Heteroptera. Entomologists reserve the term ''bug'' for Hemiptera or Heteroptera,Gilbert Waldbauer. ''The Handy Bug Answer Book.'' Visible Ink, 1998p. 1. which does not include other arthropods or insects of other orders such as Ant, ants, Bee, bees, Beetle, beetles, or Butterfly, butterflies. In some variations of English, all Terrestrial animal, terrestrial arthropods (including non-insect arachnids, and myriapods) also fall under the Colloquialism, colloquial understanding of ''bug''. Many insects with "bug" in their common name, especially in American English, belo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triozidae
Triozidae is one of seven families collectively referred to as jumping plant lice. They have traditionally been considered part of a single family, Psyllidae, but recent classifications divide the group into a total of seven families; most of the genera (over 70) remain in the Psyllidae, but Triozidae is the second-largest family in the group, containing 27 genera, and a number of pest species. Genera External links On the University of Florida The University of Florida (Florida or UF) is a public land-grant research university in Gainesville, Florida. It is a senior member of the State University System of Florida, traces its origins to 1853, and has operated continuously on its ... / Institute of Food and Agricultural Sciences ''Featured Creatures'' website ''Ceropsylla sideroxyli'', false-mastic psylla''Trioza alacris'', bay leaf suckerAgriculture and biological scienceslist of species of Triozidae The World Psylloidea Database by D. OuvrardTriozidae in Psyl'l ... [...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] |
Laurus
''Laurus'' () is a genus of evergreen trees or shrubs belonging to the laurel family, Lauraceae. The genus contains three or more species, including the bay laurel or sweet bay, ''L. nobilis'', widely cultivated as an ornamental plant and a culinary herb. Description They are slow-growing, large, evergreen aromatic shrubs or trees with alternate, ovate leaves and insignificant yellow male and female flowers borne on separate plants (dioecious). They are frost-hardy but in temperate zones they require a sheltered spot in full sun that is not subject to prolonged freezing. Plants in pots can be moved into a cold greenhouse during the winter months. Species The number of species in the genus has not yet been fully resolved. The following may or may not be included. *''Laurus azorica'', Azores laurel, is native to the Azores. *''Laurus nobilis'', bay Laurel, true laurel, sweet bay, is used as an ornamental plant and culinary herb (one type of bay leaf) used in Mediterranean style ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurus Azorica
''Laurus azorica'', the Azores laurel or Macaronesian laurel, is a small, evergreen tree in the laurel family (Lauraceae), found only on the Azores island group in the North Atlantic. Description The Azores laurel is a small dioecious tree, growing up to in height. Each flower is fragrant, creamy white, about 1 cm diameter, and they are borne in pairs beside a leaf. The leaves are large, shiny dark green, broadly ovoid, 7–14 cm long and 4–8 cm broad, with an entire margin. The fruit is a black drupe about 1–2 cm long. Distribution and habitat ''Laurus azorica'' is native to the Azores, where it is found in all of the islands. It is a major component of the laurisilva and high altitude juniper forests, occasionally with ''Myrica faya'' and ''Picconia azorica'' populations in mid-altitude. It is also found in lava flows, margins of cultivated land, coastal scrubland, mountain scrubland and forested peat bogs. Taxonomy As the result of a recent taxonomic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurus Nobilis
''Laurus nobilis'' is an aromatic evergreen tree or large shrub with green, glabrous (smooth) leaves. It is in the flowering plant family Lauraceae. It is native to the Mediterranean region and is used as bay leaf for seasoning in cooking. Its common names include bay tree (esp. United Kingdom), bay laurel, sweet bay, true laurel, Grecian laurel, or simply laurel. ''Laurus nobilis'' figures prominently in classical Greco-Roman culture. Worldwide, many other kinds of plants in diverse families are also called "bay" or "laurel", generally due to similarity of foliage or aroma to ''Laurus nobilis''. Description The laurel is an evergreen shrub or small tree, variable in size and sometimes reaching tall. The genus ''Laurus'' includes four accepted species, whose diagnostic key characters often overlap. The bay laurel is dioecious (unisexual), with male and female flowers on separate plants. Each flower is pale yellow-green, about diameter, and they are borne in pairs besid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurus Novocanariensis
''Laurus novocanariensis'' is a large shrub or tree with aromatic, shiny dark-green foliage. belonging to the evergreen tree genus ''Laurus'' of the laurel family, Lauraceae. The genus includes three species, whose diagnostic key characters often overlap.Mabberley 1997 Under favorable conditions it is an impressive tree of 3 to 20 m. tall. It is native of rich soils in the cloud zone of always moist spots in subtropical climate with a high air-humidity, on the Canary and Madeira islands. The species was formerly included in ''Laurus azorica'', a species that is now restricted to the Azores. Description The laurel is dioecious (unisexual), with male and female flowers on separate plants. Each flower is fragrant creamy white flower, about 1 cm diameter, and they are born in pairs beside a leaf. The canary laurel is a vigorous, conical tree. This is a tree up to 20 m in height, which can be distinguished by its lanceolate leaves, which have small glands in the angle between t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persea Indica
''Persea indica'' is a large, evergreen tree in the laurel family (Lauraceae), native to humid uplands on Madeira and the Canary Islands in the North Atlantic. It belongs to the genus ''Persea'', a group of evergreen trees including the avocado. It is threatened by habitat loss. It has been introduced to a number of islands in the nearby Azores. Overview The family Lauraceae was part of Gondwanaland flora. There they spread over most of the continent. The genus ''Persea'' died out in increasingly xerophytic Africa, starting with the freezing of Antarctica about 20 million years ago and the formation of the Benguela current. The genus is Local extinction, extinct in Africa, save for ''P. indica'', which survives in the fog shrouded mountains of the Canary Islands, which with Madagascar, constitute Africa's Laurel forest plant refugia. Fossil evidence indicates that the genus originated in West Africa during the Paleocene, and spread to Asia, to South America, and to Europe and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiptera Of Europe
Hemiptera (; ) is an order (biology), order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, Reduviidae, assassin bugs, Cimex, bed bugs, and shield bugs. They range in size from to around , and share a common arrangement of piercing-sucking Insect mouthparts, mouthparts. The name "true bugs" is often limited to the suborder Heteroptera. Entomologists reserve the term ''bug'' for Hemiptera or Heteroptera,Gilbert Waldbauer. ''The Handy Bug Answer Book.'' Visible Ink, 1998p. 1. which does not include other arthropods or insects of other orders such as Ant, ants, Bee, bees, Beetle, beetles, or Butterfly, butterflies. In some variations of English, all Terrestrial animal, terrestrial arthropods (including non-insect arachnids, and myriapods) also fall under the Colloquialism, colloquial understanding of ''bug''. Many insects with "bug" in their common name, especially in American English, belo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
