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    The spatial distribution of canopy- resident and ground-resident cereal aphids (Sitobion avenae and Metopolophium dirhodum) in winter wheat

    Winder, Linton; Alexander, Colin J.; Woolley, Chris; Perry, Joe N.; Holland, John M.

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    Date
    2012-08-15
    Citation:
    Winder, L., Alexander, C. J., Woolley, C., Perry, J. N., and Holland, J. M. (2011). The spatial distribution of canopy- resident and ground-resident cereal aphids (Sitobion avenae and Metopolophium dirhodum) in winter wheat. Arthropod-Plant Interactions. 4 (1) : [14 pages]
    Permanent link to Research Bank record:
    https://hdl.handle.net/10652/2646
    Abstract
    We investigated, within two cereal fields in Southern England, the within-canopy spatial distribution of the aphids Sitobion avenae and Metopolophium dirhodum in relation to crop yield and plant nitrogen. We extended the study to investigate the spatial distribution of aphids that fell to, or returned from, the ground in order to estimate availability of the within-canopy aphid population to ground-active predators. We revealed that crop canopy aphid spatial pattern was associated with nitrogen or yield. Differences were evident between species: S. avenae was generally negatively associated with yield or plant nitrogen, whilst M. dirhodum exhibited positive association. For both aphid species, we observed strong spatial pattern for aphids falling to the ground and conclude that this could, in part, mediate the effectiveness of ground-active predators as pest control agents.
    Keywords:
    Sitobion avenae, Metopolophium dirhodum, fall-off, integrated pest management, cereal aphid
    ANZSRC Field of Research:
    070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
    Copyright Holder:
    Springer Netherlands
    Copyright Notice:
    © The Author(s) 2012. This article is published with open access at Springerlink.com
    Rights:
    This digital work is protected by copyright. It may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: Any use you make of these documents or images must be for research or private study purposes only, and you may not make them available to any other person. You will recognise the author's and publishers rights and give due acknowledgement where appropriate.
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