We examine the invasion of a pathogenic fungus into populations of susceptibles. Combining epidemiological concepts with percolation theory we derive and test the following hypothesis: 1) fungal invasion into a population can be stopped by rendering a threshold proportion of the population immune for infection; 2) controlling infection at randomly selected sites introduces a shield which can prevent invasion of unprotected sites; 3) the rate of invasion reduces with increasing number of randomly protected sites. The significance of these findings is that the extent at which control strategies are applied spatially can be a critical component of disease management.
|Title of host publication||Proceedings of a meeting of the WGs|
|Subtitle of host publication||Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems|
|Editors||Yigal Elad, Ilaria Pertot, Annie Enkegaard|
|Place of Publication||Darmstadt|
|Number of pages||4|
|Publication status||Published - 2004|
|Event||Integration 2004: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems - Istituto Agrario di S. Michele all’Adige (IASMA), Trentino, Italy|
Duration: 9 Jun 2004 → 13 Jun 2004
|Period||9/06/04 → 13/06/04|
Otten, W., Bailey, D. J., Ludlam, J. J., & Gilligan, C. A. (2004). Can incomplete spatial coverage of control measures prevent invasion of fungal parasites? In Y. Elad, I. Pertot, & A. Enkegaard (Eds.), Proceedings of a meeting of the WGs: Management of plant diseases and arthropod pests by BCAs and their integration in agricultural systems (pp. 251-254). Darmstadt: IOBC-WPRS.