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Paropsis Charybdis
''Paropsis charybdis'', commonly known as the Eucalyptus tortoise beetle, is a species of leaf beetle belonging to the genus ''Paropsis''. It is considered a pest of some species of '' Eucalyptus''. Description ''Paropsis charybdis'' is identified by its pale creamy-white elytra upon which are three broad transverse areas of darker colouration. The under surface is yellow-brown. Distribution ''Paropsis charybdis'' is native to Australia, but has spread to nearby New Zealand. Behaviour and ecology Parasites The parasitoid wasps '' Ennogera nassaui'' and '' Eadya paropsidis'' have been used as a biological control agent Biological control or biocontrol is a method of controlling pests, such as insects, mites, weeds, and plant diseases, using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also invo ... for ''P. charybdis''. Relationship to humans As pests ''Paropsis charybdis'' is the most serious defoliater o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Stål
Carl Stål (21 March 1833 – 13 June 1878) was a Swedish entomologist specialising in Hemiptera. He was born at Karlberg Castle, Stockholm on 21 March 1833 and died at Frösundavik near Stockholm on 13 June 1878. He was the son of architect, author and officer Carl Stål then Colonel, Swedish Corps of Engineers. He matriculated at Uppsala University in 1853, studying medicine and passing the medico-philosophical examination in 1857. He then turned to entomology and completed his Ph.D. at the University of Jena in 1859. The same year he became assistant to Carl Henrik Boheman in the Zoological department of the Swedish Museum of Natural History in Stockholm, where, in 1867, he was appointed keeper with the title of professor. He made collecting trips in Sweden and throughout Europe and visited other museums including the collection of Johan Christian Fabricius in Kiel. His study of the Fabrician types resulted in his "Hemiptera Fabriciana". A significant part of Stål's work wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Johnstonii
''Eucalyptus johnstonii'', commonly known as Tasmanian yellow gum, is a species of medium-sized to tall tree endemic to Tasmania. It has smooth yellow to greenish bark, lance-shaped adult leaves, flower buds in groups of three, white flowers and hemispherical or bell-shaped fruit. Description ''Eucalyptus johnstonii'' is a tree that typically grows to a height of and forms a lignotuber. It has smooth yellow to brownish or greenish bark, sometimes with persistent fibrous bark near the base. Young plants and coppice regrowth have stems that are more or less square in cross-section with a broad wing on each corner and sessile. The juvenile leaves are egg-shaped to almost round, long, wide and arranged in opposite pairs. Adult leaves are lance-shaped or curved, more or less the same glossy green on both sides, long and wide on a petiole long. The flower buds are arranged in leaf axils on a thick, unbranched peduncle long, the individual buds sessile. Mature buds are oblong to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pest Insects
Economic entomology is a field of entomology, which involves the study of insects that benefit or harm humans, domestic animals, and crops. Insects that cause losses are termed as pests. Some species can cause indirect damage by spreading diseases and these are termed as vectors. Those that are beneficial include those reared for food such as honey, substances such as lac or pigments and for their role in pollinating crops and controlling pests. The ''Journal of Economic Entomology'', published by the Entomological Society of America, described itself in 2017 as the "most-cited entomological journal". History In the 18th century many works were published on agriculture. Many contained accounts of pest insects. In France Claude Sionnest (1749–1820) was a notable figure. 19th century In Britain, John Curtis wrote the influential 1860 treatise ''Farm Insects'', dealing with the insect pests of corn, roots, grass and stored grain. Fruit and pests were described by authors such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetles Described In 1860
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops. Beetles typically have a particularly hard exoske ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chrysomelinae
The Chrysomelinae are a subfamily of leaf beetles (Chrysomelidae), commonly known as broad-bodied leaf beetles or broad-shouldered leaf beetles. It includes some 3,000 species around the world. The best-known member is the notorious Colorado potato beetle (''Leptinotarsa decemlineata''), an important agricultural pest. Description Adults of Chrysomelinae are beetles with the following features: antennae inserted on or adjacent to anterior edge of head; inner face of each mandible with large membranous prostheca; each wing with only one anal cell (sometimes the wings are reduced or absent); metendosternite lateral arms without lobes; femora without internal spring sclerite; tibial spurs absent; tarsi without bifid setae; stridulatory mechanism absent; male aedeagus without tegminal ring and the testes not fused within a common membrane; female kotpresse absent. Text was copied from this source, which is available under Creative Commons Attribution 4.0 International License ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Quadrangulata
''Eucalyptus quadrangulata'', commonly known as the white-topped box or coast white box, is a species of small to medium-sized tree that is endemic to eastern Australia. It has rough, fibrous or flaky bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical fruit. Description ''Eucalyptus quadrangulata'' is a tree that typically grows to a height of and forms a lignotuber. It has rough, greyish brown, fibrous or flaky bark on the trunk and branches. Young plants and coppice regrowth have stems that are square in cross-section and leaves that are arranged in opposite pairs and sessile with their bases surrounding the stem. The juvenile leaves are lance-shaped, paler on the lower surface, long and wide. Adult leaves are the same shade of glossy green on both sides, lance-shaped to curved, long and wide, tapering to a petiole long. The flower buds are arranged in leaf axils on an unbranched peduncle long, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Longifolia
''Eucalyptus longifolia'', commonly known as woollybutt, is a species of medium-sized tree that is endemic to eastern Australia. It has thick, fibrous bark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds in groups of three, white flowers and cup-shaped to cylindrical or hemispherical fruit. The drooping flower heads in groups of three are a distinguishing feature. It grows in heavy soils often near water. Description ''Eucalyptus longifolia'' is a tree that typically grows to a height of and forms a lignotuber. It has rough, fibrous to flaky bark on the trunk and branches thicker than about . The trunk diameter is up to . Young plants and coppice regrowth have stems that are more or less square in cross-section and leaves that are egg-shaped to broadly lance-shaped, long and wide. Adult leaves are lance-shaped to curved, the same dull greyish green on both sides, long and wide, on a petiole long. The flower buds are arranged in groups o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Macarthurii
''Eucalyptus'' () is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with several other genera in the tribe Eucalypteae, including ''Corymbia'', they are commonly known as eucalypts. Plants in the genus ''Eucalyptus'' have bark that is either smooth, fibrous, hard or stringy, leaves with oil glands, and sepals and petals that are fused to form a "cap" or operculum over the stamens. The fruit is a woody capsule commonly referred to as a "gumnut". Most species of ''Eucalyptus'' are native to Australia, and every state and territory has representative species. About three-quarters of Australian forests are eucalypt forests. Wildfire is a feature of the Australian landscape and many eucalypt species are adapted to fire, and resprout after fire or have seeds which survive fire. A few species are native to islands north of Australia and a smaller number are only found outside the continent. Eucalypts have been grown ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Guilfoylei
''Eucalyptus guilfoylei'', commonly known as yellow tingle or dingul dingul, is a species of tall tree that is Endemism, endemic to Western Australia. The trunk is straight with fibrous, greyish brown bark and it has lance-shaped leaves, flower buds in groups of seven, white flowers and barrel-shaped fruit. Description ''Eucalyptus guilfoylei'' is a tree that typically grows to a height of . It has rough, short-fibred, crumbly, greyish brown bark and a trunk diameter of about . Young plants and coppice regrowth have stems that are more or less square in cross-section and leaves that are egg-shaped, dark green above and paler on the lower surface, long and wide. Adult leaves are lance-shaped, dull green on the upper surface, paler below, long and wide on a Petiole (botany), petiole long. The flower buds are arranged in groups of seven on branching Peduncle (botany), peduncles in leaf wikt:axil, axils and on the ends of branchlets. The peduncles are long and the Pedicel (botan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Deanei
''Eucalyptus deanei'', commonly known as mountain blue gum, round-leaved gum, or Deane's gum, is a species of large tree endemic to New South Wales. It has smooth bark, lance-shaped leaves that are paler on the lower surface, flower buds in groups of seven to eleven, white flowers and cup-shaped to bell-shaped fruit. Description ''Eucalyptus deanei'' typically grows as a straight forest tree, growing a height of with a trunk diameter of up to at breast height. Some specimens exceed but in less than optimal sites, it may be restricted to , have a thicker trunk and more branching crown. The trunk has smooth pale grey or cream bark with a 'skirt' of rougher greyish or brownish bark at the base. Young plants and coppice regrowth have egg-shaped to more or less round leaves long and wide. Adult leaves are arranged alternately along the stems, lance-shaped, glossy dark green on the upper surface and paler below. They are long and wide on a petiole long.Brooker, I. & Kleinig, D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Grandis
''Eucalyptus grandis'', commonly known as the flooded gum or rose gum, is a tall tree with smooth bark, rough at the base fibrous or flaky, grey to grey-brown. At maturity, it reaches tall, though the largest specimens can exceed tall. It is found on coastal areas and sub-coastal ranges from Newcastle in New South Wales northwards to west of Daintree in Queensland, mainly on flat land and lower slopes, where it is the dominant tree of wet forests and on the margins of rainforests. Description ''Eucalyptus grandis'' grows as a straight and tall forest tree, reaching around tall, with a dbh of . The biggest trees can reach high and dbh, the tallest recorded known as "The Grandis" near Bulahdelah, with a height of and a girth of . The bole is straight for 2/3 to 3/4 the height of the tree. The bark is smooth and powdery, pale- or blue-grey to white in colour, with a skirt of rough brownish bark for the bottom of the tree trunk. The glossy dark green leaves are stalked, lanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Smithii
''Eucalyptus smithii'', commonly known as the gully gum, gully peppermint, blackbutt peppermint, or ironbark peppermint, is a species of medium-sized to tall tree, sometimes a mallee, that is endemic to southeastern Australia. It has rough, compact bark on the trunk, smooth ribbony bark above, narrow lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped, bell-shaped or hemispherical fruit. Description ''Eucalyptus smithii'' is a tree that typically grows to a height of , or a mallee to . The tree form has rough, fibrous, compact and dark grey-brown to black bark on the trunk. The bark on the branches and on the trunk and branches of mallees is smooth and white to cream-coloured. Upper branch bark is shed in long ribbons. The leaves of young plants to early sapling stage are arranged in opposite pairs, green to greyish, narrow lance-shaped, long and wide, with their bases clasping the stem. Adult leaves are arranged alternately, the same shade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
