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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop |
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Keyword: Plant |
Overview - a b c d e f g h i j k l m n o p q r s t u v w x y z | |
Seite 5 von 10 1 2 3 4 5 6 7 8 9 10 | | | | ...s have a distinctive, hairy brace apparatus on their abdomens.
Long-legged flies prefer to be in proximity to water. While some species prey on insects and worms, others feed on nectar and honeydew.
The females lay their eggs on rotting plants, under bark or in reeds. Some species lay their eggs in water. The larvae feed on plant substrates first, and later on small insects, often unselectively. The pupae have breathing tubes and are hidden in cocoons. | | |
| | Hylaeus | ...eus carry pollen in a crop (a pouch in the foregut).
Hylaeus prefer to live on forest edges, in parks and gardens, hedgerows,sand pits and clay pits. The adult bees are active from May to September. They feed on the nectar and pollen of various plants such as aster, daisy or sunflower (Asteraceae), bell flowers (Campanulaceae), legumes, peas, beans or pulses (Fabaceae), mint plants (Lamiaceae), dicots (Resedaceae), rose plants (Rosaceae), tansy (Tanacetum vulgare), feverfew (Tanacetum parthenium), golden marguerite (Anthemis tinctoria) and yarrow (Achillea millefolium).
Hylaeus reproduce either once or several times a year. The females lay their eggs in nests, whic...
...um vulgare), feverfew (Tanacetum parthenium), golden marguerite (Anthemis tinctoria) and yarrow (Achillea millefolium).
Hylaeus reproduce either once or several times a year. The females lay their eggs in nests, which are constructed in hollow plant stems, dead wood or often in the galleries of beetles or other insects. After oviposition (egg laying) the nest is sealed. The larvae overwinter in the nests. Wasps of the family Gasteruptionidae are natural enemies of Hylaeus as their larvae f... | | |
| | | The larvae of rose leafhoppers are cream coloured. Rose leafhoppers and their larvae pierce the leaf tissue and suck plant juices from the underside of rose petals. The rose plants initially show a fine, white and yellow mottling on the leaves. Rose leafhoppers usually start sucking along the leaf veins and later spread out onto the whole leaf. After a while the leaves of infected plants are densely dotted with numerous pale stains and they then wither and fall off. Similar damage is caused by spider mites. For spider mite infestation, the evidence is the lack of Rose leafhopper and their missing larvae on the leaves’ undersides. | | |
| | Plant-parasitic Hemipterans - Sternorrhyncha | | Sternorrhyncha are a suborder in the order Hemiptera. This suborder is divided into 5 superfamilies, namely aphids (Aphidoidea), scale insects (Coccoidea), Psylloidea, whiteflies (Aleyrodoidea) and Phylloxeroidea. The Sternorrhyncha are common and widespread throughout the world. There are approximately 8,000 species. Some 1060 species occur in Central Europe. Sternorrhyncha reach body lengths of 0.5 - 38 mm. In shape and colouration, the species differ strongly. | | |
| | Taurus fly | | ...ellow and with black spots on the top as also with three black bandages , which to the rear end are wedge-shaped and extended. The legs are long , thin and from reddish-yellow to yellow in colour.
The Taurus fly feeds on the nectar of the various plant species whose blossoms she visits. The female lays her eggs on branches of trees or on blades of grass. The number of eggs (located singly or in or in small clusters) can amount to more than 1000.
The larvae are very small when they hatch. At t... | | |
| ...e span of about 1 week and only feed on vegetables (phytophagous). Aside from the open air, they are mainly encountered in greenhouses. After hatching from pupae, the females start feeding immediately. They drill small holes in the top surface of plants’ leaves using their ovipositors and suck up liquid with their mouth parts. The damaged areas on the leaf tissue (which also enable bacteria and fungi to penetrate into the plant) are clearly visible as yellowish stains.
The males live on nectar or honeydew but they can live without nutrition until they mate. The females lay their eggs on the food plants of the larvae, for example chrysanthemums (hence their name) and gerberas.
In vegetable plantations, chilli plants and potatoes are often affected. The females use their ovipositors to drill into the upper side of leaves and place 50 to 100 (sometimes even up to 400) eggs there. The hatched larvae develop rapidly. At the end of the third and last larval sta...
...eggs in the larvae of the Chrysanthemum leaf miner. The hatching wasp larvae cause mass deaths of the host larvae by feeding on their insides. Amongst humans, the Chrysanthemum leaf miner ( is regarded as a pest when encountered in greenhouses and plantations, especially en masse as they can cause significant damage and crop yield losses. Pesticides are of little use as leaf-miner flies have developed a resistance to the poison and it only kills more of their natural enemies.
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|  | | Plant-parasitic Hemipteran - Sternorrhyncha | | >> Picture |
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