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Photography with cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop |
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Keyword: Agriculture |
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 2 von 2 1 2 | | | | ...and keeping these in reserve as a food source for their larvae. Due to their ability to produce humus, these species are ecologically important. Other species, such as the May beetle (Melolontha melolontha), can cause serious damage in forestry and agriculture when appearing en masse. | | |
| | ...terflies are of great importance as bio-indicators and plant pollinators. Caterpillars, butterflies and moths have a large number of enemies. Many lepidopteran species are endangered, although this is mainly due to the increased use of pesticides in agriculture. | | |
| | | Many species of Tephritidae cause considerable damage in agriculture and to orchards, while nets to protect against insects often are ineffective. | | |
| | ... in gardens or in cultivated land. The eggs are oval and about 1 mm in size and can number up to 1, 200. The larvae hatch after 15 days and feed on fallen leaves or on the roots of young plants. They can cause considerable damage in horticulture and agriculture. 300 to 400 larvae per square metre of usable area is not uncommon. The larvae pupate in the soil about 4 months after hatching. During this time, they shed their skin 4 times. The pupae overwinter in the soil. | | |
| | ...ry into the host animal. Usually the host animals die before the larvae’s development is complete. The pupation of the larvae usually occurs outside the host animal.
Since the larvae of many tachina flies kill pests, they are very welcome in the agriculture and forestry industry. | | |
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