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Phyllonorycter Blancardella
The spotted tentiform leafminer (''Phyllonorycter blancardella'') is a moth of the family Gracillariidae. It is known from all of Europe, east to Ukraine and central Anatolia. It is also known throughout North America including Nova Scotia, Quebec, Ontario, Wisconsin and California. The wingspan is 6–9 mm. The ground colour is orange often with a dusky sprinkling of blackish scales. White streaks sometimes join together to form larger markings. Adults emerge in May and again in August in two generations in western Europe. The larvae feed on '' Malus angustifolia'', ''Malus x astracanica'', ''Malus baccata'', '' Malus coronaria'', ''Malus domestica'', ''Malus floribunda'', ''Malus fusca'', '' Malus ringo'', ''Malus x robusta'' and ''Malus sylvestris''. They mine the leaves of their host plant. The mine has the form of a lower surface tentiform mine. The epidermis is yellow-green and has some folds. Pupation takes place within the mine. The pupa is amber or chestnut brown, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Wales
, area_land_km2 = 6,172 , postal_code_type = Postcode , postal_code = LL, CH, SY , image_map1 = Wales North Wales locator map.svg , map_caption1 = Six principal areas of Wales commonly defined to be North Wales, for policing, fire and rescue, health and regional economy. North Wales ( cy, Gogledd Cymru) is a region of Wales, encompassing its northernmost areas. It borders Mid Wales to the south, England to the east, and the Irish Sea to the north and west. The area is highly mountainous and rural, with Snowdonia National Park ( and the Clwydian Range and Dee Valley (), known for its mountains, waterfalls and trails, wholly within the region. Its population is concentrated in the north-east and northern coastal areas, with significant Welsh-speaking populations in its western and rural areas. North Wales is imprecisely defined, lacking any exact definition or administrative structure. It is commonly defined adminis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malus Coronaria
''Malus coronaria'', also known by the names sweet crabapple or garland crab, is a North American species of ''Malus'' (crabapple). Description ''Malus coronaria'' often is a bushy shrub with rigid, contorted branches, but frequently becomes a small tree up to tall, with a broad open crown. Its flowering time is about two weeks later than that of the domestic apple, and its fragrant fruit clings to the branches on clustered stems long after the leaves have fallen. The bark is reddish brown, longitudinally fissured, with surface separating in narrow scales. Branchlets at first coated with thick white wool, later they become smooth reddish brown; they develop in their second year long, spur-like branches and sometimes absolute thorns or more in length. The wood is reddish brown, the sapwood yellow; it is heavy, close-grained, not strong. Used for the handles of tools and small domestic articles. It has a specific gravity of 0.7048; and density . Its winter buds are bright red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sympiesis Marylandensis
''Sympiesis'' is a genus of hymenopteran insects of the family Eulophidae The Eulophidae are a large family of hymenopteran insects, with over 4,300 described species in some 300 genera. The family includes the genus ''Elasmus'', which used to be treated as a separate family, "Elasmidae", and is now treated as a subf .... ReferencesKey to Nearctic eulophid genera Eulophidae {{Eulophidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eulophid
The Eulophidae are a large family of hymenopteran insects, with over 4,300 described species in some 300 genera. The family includes the genus ''Elasmus'', which used to be treated as a separate family, "Elasmidae", and is now treated as a subfamily of Eulophidae. These minute insects are challenging to study, as they deteriorate rapidly after death unless extreme care is taken (e.g., preservation in ethanol), making identification of most museum specimens difficult. The larvae of a very few species feed on plants, but the majority are primary parasitoids on a huge range of arthropods at all stages of development. They are exceptional in that they are one of two hymenopteran families with some species that are known to parasitize thrips. Eulophids are found throughout the world in virtually all habitats (one is even aquatic, parasitising water-penny beetles). Eulophids are separable from most other Chalcidoidea by the possession of only four tarsomeres on each leg, a small, stra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insecticide
Insecticides are substances used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively. Insecticides are used in agriculture, medicine, industry and by consumers. Insecticides are claimed to be a major factor behind the increase in the 20th-century's agricultural productivity. Nearly all insecticides have the potential to significantly alter ecosystems; many are toxic to humans and/or animals; some become concentrated as they spread along the food chain. Insecticides can be classified into two major groups: systemic insecticides, which have residual or long term activity; and contact insecticides, which have no residual activity. The mode of action describes how the pesticide kills or inactivates a pest. It provides another way of classifying insecticides. Mode of action can be important in understanding whether an insecticide will be toxic to unrelated species, such as fish, birds and mammals. Insecticides may be repellent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrethroid
A pyrethroid is an organic compound similar to the natural pyrethrins, which are produced by the flowers of pyrethrums (''Chrysanthemum cinerariaefolium'' and ''Chrysanthemum coccineum, C. coccineum''). Pyrethroids are used as commercial and household insecticides. In household concentrations pyrethroids are generally harmless to humans. However, pyrethroids are toxic to insects such as bees, dragonflies, mayflies, Horse-fly, gadflies, and some other invertebrates, including those that constitute the base of aquatic and terrestrial food webs. Pyrethroids are toxic to aquatic organisms, especially fish.Pyrethroids fact sheet from the Illinois Department of Public Health. They have been shown to be an effective control measure for malaria outbreaks, through indoor applications. ...
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Organophosphate
In organic chemistry, organophosphates (also known as phosphate esters, or OPEs) are a class of organophosphorus compounds with the general structure , a central phosphate molecule with alkyl or aromatic substituents. They can be considered as esters of phosphoric acid. Like most functional groups, organophosphates occur in a diverse range of forms, with important examples including key biomolecules such as DNA, RNA and ATP, as well as many insecticides, herbicides, nerve agents and flame retardants. OPEs have been widely used in various products as flame retardants, plasticizers, and performance additives to engine oil. The popularity of OPEs as flame retardants came as a substitution for the highly regulated brominated flame retardants. The low cost of production and compatibility to diverse polymers made OPEs to be widely used in industry including textile, furniture, electronics as plasticizers and flame retardants. These compounds are added to the final product physica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllonorycter Crataegella
The apple blotch leafminer (''Phyllonorycter crataegella'') is a moth of the family Gracillariidae. It is known from Canada (Nova Scotia, Québec, Ontario and New Brunswick) the United States (Kentucky, Massachusetts, Michigan, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Virginia, West Virginia, Wisconsin, California, Maine, Vermont, Oregon, Arkansas, Connecticut and Illinois). The wingspan is 5.5–6 mm. The larvae feed on '' Amelanchier'' species (including '' Amelanchier canadensis''), ''Aronia'' species, '' Crataegus'' species (including ''Crataegus mollis''), ''Cydonia'' species (including '' Cydonia japonica'' and ''Cydonia oblonga''), ''Malus'' species (including '' Malus coronaria'', ''Malus domestica'', '' Malus malus'', ''Malus pumila'', ''Malus sieboldii'' and ''Malus sylvestris''), '' Photinia'' species, ''Prunus'' species (including ''Prunus americana'', ''Prunus avium'', ''Prunus domestica'', '' Prunus pennsylvanica'', ''Prunus persica'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malus
''Malus'' ( or ) is a genus of about 30–55 species of small deciduous trees or shrubs in the family Rosaceae, including the domesticated orchard apple, crab apples, wild apples, and rainberries. The genus is native to the temperate zone of the Northern Hemisphere. Description Apple trees are typically talI at maturity, with a dense, twiggy crown. The leaves are long, alternate, simple, with a serrated margin. The flowers are borne in corymbs, and have five petals, which may be white, pink, or red, and are perfect, with usually red stamens that produce copious pollen, and a half-inferior ovary; flowering occurs in the spring after 50–80 growing degree days (varying greatly according to subspecies and cultivar). Many apples require cross-pollination between individuals by insects (typically bees, which freely visit the flowers for both nectar and pollen); these are called self-sterile, so self-pollination is impossible, making pollinating insects essential. A number o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Miner
A leaf miner is any one of numerous species of insects in which the larval stage lives in, and eats, the leaf tissue of plants. The vast majority of leaf-mining insects are moths (Lepidoptera), sawflies (Symphyta, the mother clade of wasps), and flies (Diptera). Some beetles also exhibit this behavior. Like woodboring beetles, leaf miners are protected from many predators and plant defenses by feeding within the tissues of the leaves, selectively eating only the layers that have the least amount of cellulose. When attacking ''Quercus robur'' (English oak), they also selectively feed on tissues containing lower levels of tannin, a deterrent chemical produced in great abundance by the tree. The pattern of the feeding tunnel and the layer of the leaf being mined is often diagnostic of the insect responsible, sometimes even to species level. The mine often contains frass, or droppings, and the pattern of frass deposition, mine shape, and host plant identity are useful to determi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malus Sylvestris
''Malus sylvestris'', the European crab apple, is a species of the genus ''Malus'', native to Europe. Its scientific name means "forest apple" and the truly wild tree has thorns. Description Wild apple has an expanded crown and often appears more like a bush than a tree. It can live 80–100 years and grow up to tall with trunk diameters of . Due to its weak competitiveness and high light requirement, wild apple is found mostly at the wet edge of forests, in farmland hedges or on very extreme, marginal sites. The flowers are hermaphrodite and are pollinated by insects. Progenitor of cultivated apples In the past ''M. sylvestris'' was thought to be the most important ancestor of the cultivated apple (''M. domestica''), which has since been shown to have been primarily derived from the central Asian species '' M. sieversii''. However another recent DNA analysisCoart, E., Van Glabeke, S., De Loose, M., Larsen, A.S., Roldán-Ruiz, I. 2006. Chloroplast diversity in the ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malus Ringo
''Malus'' ( or ) is a genus of about 30–55 species of small deciduous trees or shrubs in the family Rosaceae, including the domesticated orchard apple, crab apples, wild apples, and rainberries. The genus is native to the temperate zone of the Northern Hemisphere. Description Apple trees are typically talI at maturity, with a dense, twiggy crown. The leaves are long, alternate, simple, with a serrated margin. The flowers are borne in corymbs, and have five petals, which may be white, pink, or red, and are perfect, with usually red stamens that produce copious pollen, and a half-inferior ovary; flowering occurs in the spring after 50–80 growing degree days (varying greatly according to subspecies and cultivar). Many apples require cross-pollination between individuals by insects (typically bees, which freely visit the flowers for both nectar and pollen); these are called self-sterile, so self-pollination is impossible, making pollinating insects essential. A number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
