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Multi‐scale modelling of infection pressure from Phytophthora infestans *
Author(s) -
Skelsey P.,
Van Der Werf W.,
Kessel G. J. T.,
Rossing W. A. H.,
Holtslag A. A. M.
Publication year - 2007
Publication title -
eppo bulletin
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.327
H-Index - 36
eISSN - 1365-2338
pISSN - 0250-8052
DOI - 10.1111/j.1365-2338.2007.01130.x
Subject(s) - phytophthora infestans , blight , range (aeronautics) , spore , population , scale (ratio) , biology , environmental science , geography , botany , engineering , cartography , demography , aerospace engineering , sociology
Management of potato late blight could benefit from prediction of the risk posed to potato fields from external inoculum sources of Phytophthora infestans . Influx of inoculum depends on a complex interplay of population biological, atmospheric and spore survival processes, and is difficult to predict. This research aims at building tools for such prediction. BLIGHTSPACE is a spatio‐temporal model (parameterized for potato late blight) that has been developed and utilized to study the progress of epidemics in individual fields and networks of fields. A quasi‐Gaussian plume model was developed to provide long‐range transport of spores within BLIGHTSPACE. Numerical results compared favorably with experimental data. A further submodel for the survival of spores during long‐range transportation has been added. Integration of these three submodels will create an experimental arena for comparing control options for potato late blight.