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Elatobium
''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfami ...'' in Europe and elsewhere *'' Elatobium hidaense'' which feeds on '' Salix'' in Japan and Kamschatica *'' Elatobium laricis'' which feeds on '' Larix sibirica'' in east Siberia *'' Elatobium momii'' which feeds on '' Abies firma'', '' Picea jezoensis'' and '' Taxus cuspidata'' in Japan *'' Elatobium trochodendri'' which feeds on '' Trochodendron aralioides'' in Japan References Aphidinae {{Aphididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elatobium Abietinum
''Elatobium abietinum'', commonly known as the spruce aphid or green spruce aphid, is a species of aphid in the subfamily Aphidinae that feeds on spruce (''Picea'' spp.), and occasionally fir (''Abies'' spp.). It is native to Northern, Central and Eastern Europe and has spread to Western Europe, North America and elsewhere. Description Wingless adults are some shade of green, sometimes with a slight waxy covering, and grow to a length of about . The siphunculi (slender tubes on the fifth abdominal segment) are cylindrical, pale and slightly S-shaped, and are much longer than the cauda (tail-like protrusion). Distribution and host range ''Elatobium abietinum'' is native to Northern, Central and Eastern Europe where its original host is ''Picea abies''. From this range it has spread to Western Europe where plantations of ''P. abies'' have been established, and expanded its host range to include ''Picea sitchensis'' and other ''Picea'' spp., and occasionally on fir (''Abies'' spp.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elatobium Hidaense
''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfami ...'' in Europe and elsewhere *'' Elatobium hidaense'' which feeds on '' Salix'' in Japan and Kamschatica *'' Elatobium laricis'' which feeds on '' Larix sibirica'' in east Siberia *'' Elatobium momii'' which feeds on '' Abies firma'', '' Picea jezoensis'' and '' Taxus cuspidata'' in Japan *'' Elatobium trochodendri'' which feeds on '' Trochodendron aralioides'' in Japan References Aphidinae {{Aphididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elatobium Laricis
''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea'' in Europe and elsewhere *''Elatobium hidaense ''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea A spruce is a tree o ...'' which feeds on '' Salix'' in Japan and Kamschatica *'' Elatobium laricis'' which feeds on '' Larix sibirica'' in east Siberia *'' Elatobium momii'' which feeds on '' Abies firma'', '' Picea jezoensis'' and '' Taxus cuspidata'' in Japan *'' Elatobium trochodendri'' which feeds on '' Trochodendron aralioides'' in Japan References Aphidinae {{Aphididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elatobium Momii
''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea'' in Europe and elsewhere *''Elatobium hidaense'' which feeds on '' Salix'' in Japan and Kamschatica *''Elatobium laricis ''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea'' in Europe and elsewhere ...'' which feeds on '' Larix sibirica'' in east Siberia *'' Elatobium momii'' which feeds on '' Abies firma'', '' Picea jezoensis'' and '' Taxus cuspidata'' in Japan *'' Elatobium trochodendri'' which feeds on '' Trochodendron aralioides'' in Japan References Aphidinae {{Aphididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elatobium Trochodendri
''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea'' in Europe and elsewhere *''Elatobium hidaense'' which feeds on '' Salix'' in Japan and Kamschatica *''Elatobium laricis'' which feeds on '' Larix sibirica'' in east Siberia *''Elatobium momii ''Elatobium'' is a genus of insects in the family Aphididae containing five species of aphids that feed on the foliage of trees. Species The genus includes five species: *''Elatobium abietinum'' which feeds on ''Picea'' in Europe and elsewhere ...'' which feeds on '' Abies firma'', '' Picea jezoensis'' and '' Taxus cuspidata'' in Japan *'' Elatobium trochodendri'' which feeds on '' Trochodendron aralioides'' in Japan References Aphidinae {{Aphididae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Mordvilko
Alexander Konstantinovich Mordvilko (born 3 February 1867 in the area of Minsk – died 12 July 1938 in the area of Leningrad) was a Russian entomologist Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arach ... and parasitologist. References 1867 births 1938 deaths Russian entomologists Soviet entomologists Russian parasitologists Soviet parasitologists {{Russia-scientist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphididae
The Aphididae are a very large insect family in the aphid superfamily ( Aphidoidea), of the order Hemiptera. These insects suck the sap from plant leaves. Several thousand species are placed in this family, many of which are considered plant/crop pests. They are the family of insects containing most plant virus vectors (around 200 known) with the green peach aphid (''Myzus persicae'') being one of the most prevalent and indiscriminate carriers. Evolution Aphids originated in the late Cretaceous about (Mya), but the Aphidinae which comprises about half of the 4700 described species and genera of aphids alive today come from their most recent radiation which occurred in the late Tertiary less than 10 Mya.Von Dohlen CD, Moran NA (2000) Molecular data support a rapid radiation of aphids in the Cretaceous and multiple origins of host alternation. Biol J Linnean Soc 71: 689–717Von Dohlen CD, Rowe CA, Heie OE (2006) A test of morphological hypotheses for tribal and subtribal relatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphid
Aphids are small sap-sucking insects and members of the superfamily Aphidoidea. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white woolly aphids. A typical life cycle involves flightless females giving live birth to female nymphs—who may also be already pregnant, an adaptation scientists call telescoping generations—without the involvement of males. Maturing rapidly, females breed profusely so that the number of these insects multiplies quickly. Winged females may develop later in the season, allowing the insects to colonize new plants. In temperate regions, a phase of sexual reproduction occurs in the autumn, with the insects often overwintering as eggs. The life cycle of some species involves an alternation between two species of host plants, for example between an annual crop and a woody plant. Some species feed on only one type of plant, while others are generalists, coloni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picea
A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfamily Piceoideae. Spruces are large trees, from about 20 to 60 m (about 60–200 ft) tall when mature, and have whorled branches and conical form. They can be distinguished from other members of the pine family by their needles (leaves), which are four-sided and attached singly to small persistent peg-like structures (pulvini or sterigmata) on the branches, and by their cones (without any protruding bracts), which hang downwards after they are pollinated. The needles are shed when 4–10 years old, leaving the branches rough with the retained pegs. In other similar genera, the branches are fairly smooth. Spruce are used as food plants by the larvae of some Lepidoptera (moth and butterfly) species, such as the eastern spruce budwo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salix
Willows, also called sallows and osiers, from the genus ''Salix'', comprise around 400 speciesMabberley, D.J. 1997. The Plant Book, Cambridge University Press #2: Cambridge. of typically deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions. Most species are known as willow, but some narrow-leaved shrub species are called osier, and some broader-leaved species are referred to as sallow (from Old English ''sealh'', related to the Latin word ''salix'', willow). Some willows (particularly arctic and alpine species) are low-growing or creeping shrubs; for example, the dwarf willow (''Salix herbacea'') rarely exceeds in height, though it spreads widely across the ground. Description Willows all have abundant watery bark sap, which is heavily charged with salicylic acid, soft, usually pliant, tough wood, slender branches, and large, fibrous, often stoloniferous roots. The roots are remarkable for their toughness, size, and tenacity to live, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larix Sibirica
''Larix sibirica'', the Siberian larch or Russian larch, is a frost-hardy tree native to western Russia, from close to the Finnish border east to the Yenisei valley in central Siberia, where it hybridises with the Dahurian larch ''L. gmelinii'' of eastern Siberia; the hybrid is known as '' Larix × czekanowskii''. Description It is a medium-size to large deciduous coniferous tree reaching 20–50 m tall, with a trunk up to 1 m diameter. The crown is conic when young, becoming broad with age; the main branches are level to upswept, with the side branches often pendulous. The shoots are dimorphic, with growth divided into long shoots (typically 10–50 cm long) and bearing several buds, and short shoots only 1–2 mm long with only a single bud. It has bimorphic needles, with needles on new growth borne singly and arranged in a spiral around the branch and needles on older wood borne in clusters of 15-40 needles on short spurs. It is most easily distinguished from the clo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abies Firma
''Abies firma'', the momi fir, is a species of fir native to central and southern Japan, growing at low to moderate altitudes of 50–1600 m. ''Abies firma'' is a medium-sized to large evergreen coniferous tree growing to tall and in trunk diameter, with a broad conical crown of straight branches rising at an angle of about 20° above horizontal. The bark is scaly grey-brown, with resin blisters on young trees. The shoots are grooved, buff to grey-brown, glabrous or finely pubescent. The leaves ("needles") are flattened, long and broad, spread at nearly right angles from the shoot; the apex is sharp, bifid (double-pointed) on the leaves of young trees, single-pointed on mature trees. They are bright green above, and greyish-green below with two broad stomatal bands. The cones are long by wide, green maturing yellow-brown, tapering to a broad bluntly rounded apex. The scale bracts are exserted , triangular. The seeds are long with a wedge-shaped wing long, are released ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
