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Networks of stored grain diseases and pests: Strategies for sampling and mitigation

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Nopsa, J. F. H., Scoglio, C. M., Daglish, G. J., Phillips, T. W., Thomas, S. and Garrett, K. (2013) Networks of stored grain diseases and pests: Strategies for sampling and mitigation. Phytopathology, 103 (6). S259. ISSN 0031-949X

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Article Link: http://dx.doi.org/10.1094/PHYTO-103-6-S2.1


Pathogens and pests of stored grains move through complex dynamic networks linking fields, farms, and bulk storage facilities. Human transport and other forms of dispersal link the components of this network. A network model for pathogen and pest movement through stored grain systems is a first step toward new sampling and mitigation strategies that utilize information about the network structure. An understanding of network structure can be applied to identifying the key network components for pathogen or pest movement through the system. For example, it may be useful to identify a network node, such as a local grain storage facility, through which grain from a large number of fields will be accumulated and move through the network. This node may be particularly important for sampling and mitigation. In some cases more detailed information about network structure can identify key nodes that link two large sections of the network, such that management at the key nodes will greatly reduce the risk of spread between the two sections. In addition to the spread of particular species of pathogens and pests, we also evaluate the spread of problematic subpopulations, such as subpopulations with pesticide resistance. We present an analysis of stored grain pathogen and pest networks for Australia and the United States.

Item Type:Article
Business groups:Crop and Food Science
Additional Information:Nopsa, J. F. Hernandez Scoglio, C. M. Daglish, G. Phillips, T. W. Thomas, S. Garrett, K. Joint Meeting of the American-Phytopathological-Society (APS) and the Mycological-Society-of-America (MSA) Aug 10-14, 2013 Austin, TX Amer Phytopathol Soc (APS), Mycol Soc Amer (MSA) Amer phytopathological soc St paul 2
Subjects:Plant culture > Field crops > Grain. Cereals
Agriculture > Agriculture (General) > Storage
Live Archive:02 Oct 2014 04:54
Last Modified:03 Sep 2021 16:44

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