Infection

Most of the plant pathogens can develop even on wild plants and weeds (volunteer alternative hosts) other than on the cultivated crops.  They can then survive from one growing season to the subsequent one, in turns contributing to the establishment of an epidemic on the cultivated crop. The role of these bridging hosts is recognized as crucial both for the production of additional inoculum load for the following season and for harboring the dormant stages of the pathogens (Dinoor, 1974), other than being likely crucial under future climate conditions (Dobson, 2004). To take into account the suitability of the agroenvironmental conditions experienced by the fungal pathogen in the period between two cropping season, the generic infection model developed by Magarey et al. (2005) was implemented and run with an hourly time step according to Bregaglio et al. (2012).

The description of the model is reported in the documentation of the DiseaseProgress component and it is described in the Infection topic.

A second model to compute daily infection efficiency is implemented in the InoculumPressure component and it is described in the InfectionLaunay topic.

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