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Landscape Structure and Biological Control in Agroecosystems

Thies, Carsten and Tscharntke, Teja (1999) Landscape Structure and Biological Control in Agroecosystems. Science, 285, pp. 893-895.

[thumbnail of thies-1999-landscape-biological-control.pdf] PDF - German/Deutsch
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Document available online at: http://wwwuser.gwdg.de/~uaoe/pdf/paper/Science1999,285.pdf


Biological pest control has primarily relied on local improvements in populations of natural enemies, but landscape structure may also be important. This is shown here with experiments at different spatial scales using the rape pollen beetle (Meligethes aeneus), an important pest on oilseed rape (Brassica napus).
The presence of old field margin strips along rape fields was associated with increased mortality of pollen beetles resulting from parasitism and adjacent, large, old fallow habitats had an even greater effect. In structurally complex landscapes, parasitism was higher and crop damage was lower than in simple landscapes with a high percentage of agricultural use.

EPrint Type:Journal paper
Keywords:biological pest control, landscape structure, parasitism, Meligethes aeneus, Brassica napus, field margin strips
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: Germany > University of Göttingen > Agroecology section
Deposited By: Thies, Dr Carsten
ID Code:2078
Deposited On:09 Jan 2004
Last Modified:12 Apr 2010 07:28
Document Language:English
Refereed:Peer-reviewed and accepted

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