Risk factors
For mycotoxins associated to Fusarium head blight, risk factors can be classified into 2 categories: the agricultural factors, on which the farmer can act and which may have an impact on the rate of inoculum, or on the severity of the infection, and the meteorological factors on which the farmer cannot act, but which we can be analyzed to predict development disease risk.
From the point of view of traceability, agricultural factors can be analysed from available information in index cards used for description of crop parcels which are associated to the GIS which are used for the management of this information. Meteorological information is contextual information, often GIS independent and produced by actors outside concerned sectors. Contrary to parcels data, meteorological data have a spatial continuous coverage.
The combination of both layers of information
can be connected with the concept of Spatial Reference Information System
(S.I.R.S). Within the framework of the implementation of the SIG-GTA, it
will be necessary to constitute a database management system based on the
link of existing data at exploitation level to a centralised meteorological
database. Its structure has to answer requirements of update and accessibility
for all the actors of the sector. The evaluation of a particular risk in
a parcel must also be able to exploit a knowledge base identifying the importance
of each factors acting at local conditions. The update and the treatment
of this information has to be based on the implementation of a centralized
structure enable to product, in a standardized and reliable way, contamination
risk indicators.
