Eriococcus Orariensis
''Eriococcus orariensis'', commonly known as the mānuka blight, is a felt scale insect in the genus '' Eriococcus''. It is native to Australia, but was discovered in New Zealand in 1937 after being accidentally introduced to the country. Description To identify and differentiate ''Eriococcus orariensis'' from similar ''Eriococcus'' species a microscope is needed. ''E. orariensis'' is sexually dimorphic. Adult females are typically light brown and an oval shape that tapers towards the anal lobes. Adult females lack wings and average 1.25mm in length and 0.84mm in width. Their antennae are six-segmented, the third segment being the longest. Female egg sacs are also greyish-white, closely felted, and open towards the anal end. ''Eriococcus orariensis'' female dorsal (upper) and ventral (lower) body surfaces are membranous and irregularly covered in small, inconspicuous, bristle-like structures called setae; although the setae extend in semi-regular rows along the abdominal segmen ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Scale Insect
Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the superfamily Coccoidea due to taxonomic uncertainties. Adult females typically have soft bodies and no limbs, and are concealed underneath domed scales, extruding quantities of wax for protection. Some species are hermaphroditic, with a combined ovotestis instead of separate ovaries and testes. Males, in the species where they occur, have legs and sometimes wings, and resemble small flies. Scale insects are herbivores, piercing plant tissues with their mouthparts and remaining in one place, feeding on sap. The excess fluid they imbibe is secreted as honeydew on which sooty mold tends to grow. The insects often have a mutualistic relationship with ants, which feed on the honeydew and protect them from predators. There are about 8,000 de ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kunzea Ericoides
''Kunzea ericoides'', commonly known as kānuka, kanuka, white tea-tree or burgan, is a tree or shrub in the myrtle family, Myrtaceae and is endemic to New Zealand. It has white or pink flowers similar to those of '' Leptospermum'' and from its first formal description in 1832 until 1983 was known as ''Leptospermum ericoides''. The flowers have five petals and up to 25 stamens which are mostly longer than the petals. Description ''Kunzea ericoides'' is a spreading shrub or tree, sometimes growing to a height of with bark which peels in long strips and young branches which tend to droop. The leaves are variable in shape from linear to narrow elliptic or lance-shaped, long and wide with a petiole up to long. The flowers are white or pale pink, crowded on side branches or in the axils of upper leaves. The floral cup is covered with soft, downy hairs and is on a pedicel long. There are five triangular sepals about long and five petals about long. There are up to 25 stamen ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Insects Described In 1954
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. Insec ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Eriococcidae
Eriococcidae is a family of scale insects in the order Hemiptera. They are commonly known as felt scales or eriococcids. Each species is usually specific to a different plant host, or closely related group of hosts. Recent research using ribosomal DNA has shown that the family Eriococcidae is not a single monophyletic group but is an aggregation of several different groups. Some species that appear morphologically similar seem to be only distantly related while dissimilar species are sometimes more closely related.Cook, L.G. & Gullan, P.J. 2004: The gall-inducing habit has evolved multiple times among the eriococcid scale insects (Sternorrhyncha: Coccoidea: Eriococcidae). ''Biological Journal of the Linnean Society'', 83: 441-452. DOI: 10.1111/j 1095-8312.2004.00396.x The type genus '' Eriococcus'' has been shown to be polyphyletic. Morphology Felt scales are a diverse group of scale insects. They produce a white, yellowish or gray membranous capsule or ovisac that encloses the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Department Of Scientific And Industrial Research (New Zealand)
The Department of Scientific and Industrial Research (DSIR) is a now-defunct government science agency in New Zealand, founded in 1926 and broken into Crown Research Institutes in 1992. Foundation DSIR was founded in 1926 by Ernest Marsden after calls from Ernest Rutherford for government to support education and research and on the back of the 1923 Imperial Conference, Imperial Economic Conference in London in October and November 1923, when various colonies discussed setting up such departments. It initially received funding from sources such as the Empire Marketing Board. The initial plans also included a new agricultural college, to be jointly founded by Auckland University, Auckland and Victoria University of Wellington, Victoria University Colleges, Palmerston North was chosen as the site for this and it grew to become Massey University. Structure DSIR initially had five divisions: * Grasslands in Palmerston North * Plant Diseases in Auckland * Entomology, attached to th ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Sooty Mold
Sooty mold (also spelled sooty mould) is a collective term for different Ascomycete fungi, which includes many genera, commonly '' Cladosporium'' and '' Alternaria''. It grows on plants and their fruit, but also environmental objects, like fences, garden furniture, stones, and even cars. The mold benefits from either a sugary exudate produced by the plant or fruit, or honeydew-secreting insects or sap suckers the plant may be infested by. Sooty mold itself does little if any harm to the plant. Treatment is indicated when the mold is combined with insect infestation. Description Sooty mold is a collective, self-descriptive term for a number of different fungi; it is a black, powdery coating adhering to plants and their fruit or environmental objects. Biology The ecology of the different species, their interactions, relationship to the host are little understood. A chance observation of a '' Microcyclospora tardicrescens'' inhibiting the growth of the fruit pathogen '' Colleto ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Population Bottleneck
A population bottleneck or genetic bottleneck is a sharp reduction in the size of a population Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world. Governments typically quantify the size of the resident population within their jurisdiction using ... due to environmental events such as famines, earthquakes, floods, fires, disease, and droughts; or human activities such as specicide, widespread violence or intentional culling, and human population planning. Such events can reduce the variation in the gene pool of a population; thereafter, a smaller population, with a smaller genetic diversity, remains to pass on genes to future generations of offspring through sexual reproduction. Genetic diversity remains lower, increasing only when gene flow from another population occurs or very slowly increasing with time as random mutations occur. This results in a reduction in the robustness of the ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Eriococcus Coriaceus
Eriococcus coriaceus is a scale insect of the genus Eriococcus. Its common name In biology, a common name of a taxon or organism (also known as a vernacular name, English name, colloquial name, country name, popular name, or farmer's name) is a name that is based on the normal language of everyday life; and is often contra ...s include Blue Gum Scale, gum-tree scale and common gum scale. References Eriococcidae {{coccoidea-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Rhyzobius Ventralis
''Rhyzobius ventralis'', common names including black lady beetle, gumtree scale ladybird, is a ladybird species endemic to Tasmania and all the mainland states of Australia except the Northern Territory. It is also found in New Zealand, but not naturally. The earliest New Zealand record is Auckland, 1898 (, 1990: 60) References * 1990: Beetles in a suburban environment: a New Zealand case study. ''DSIR Plant Protection report'', (3PDF External links * * Coccinellidae Beetles described in 1842 {{Coccinellidae-stub ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Fungus
A fungus (plural, : fungi or funguses) is any member of the group of Eukaryote, eukaryotic organisms that includes microorganisms such as yeasts and Mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as a Kingdom (biology), kingdom, separately from the other eukaryotic kingdoms, which by one traditional classification include Plantae, Animalia, Protozoa, and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of motility, mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single gro ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Pupa
A pupa ( la, pupa, "doll"; plural: ''pupae'') is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages thereof being egg, larva, pupa, and imago. The processes of entering and completing the pupal stage are controlled by the insect's hormones, especially juvenile hormone, prothoracicotropic hormone, and ecdysone. The act of becoming a pupa is called pupation, and the act of emerging from the pupal case is called eclosion or emergence. The pupae of different groups of insects have different names such as ''chrysalis'' for the pupae of butterflies and ''tumbler'' for those of the mosquito family. Pupae may further be enclosed in other structures such as cocoons, nests, or shells. Position in life cycle The pupal stage follows the larval stage and precedes adulthood ('' imago'') in insects with complete metamo ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Leptospermum
''Leptospermum'' is a genus of shrubs and small trees in the myrtle family Myrtaceae commonly known as tea trees, although this name is sometimes also used for some species of ''Melaleuca''. Most species are endemic to Australia, with the greatest diversity in the south of the continent, but some are native to other parts of the world, including New Zealand and Southeast Asia. Leptospermums all have five conspicuous petals and five groups of stamens which alternate with the petals. There is a single style in the centre of the flower and the fruit is a woody capsule. The first formal description of a leptospermum was published in 1776 by the German botanists Johann Reinhold Forster and his son Johann Georg Adam Forster, but an unambiguous definition of individual species in the genus was not achieved until 1979. Leptospermums grow in a wide range of habitats but are most commonly found in moist, low-nutrient soils. They have important uses in horticulture, in the production o ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |