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Aphanomyces is the most damaging telluric disease of peas. The EvA tool does not replace the Infectious Potential bioassay, but allows you to quickly classify your plot in a risk level and thus guide you in your choices to preserve pea yield and plot health.
Little information to fill in
The information you need to fill in is as follows: department, soil type, pea history and irrigation. These are few in number, but must be filled in very precisely.
A tool that can be used in most regions
The EvA tool was developed from a database containing information on 780 plots in the northern half of France, then validated on 120 plots, mainly in the Normandy and Centre-Val de Loire regions. This tool can be used in the Bourgogne-Franche-Comté, Bretagne, Centre-Val de Loire, Grand Est, Hauts-de-France, Île-de-France, Normandie, Nouvelle-Aquitaine and Pays de la Loire regions.
Points of attention
At present, only the effect of a winter or spring pea crop on the evolution of a soil's Infectious Potential is known. The effect of other susceptible legumes has not yet been taken into account in this tool, for lack of data. Consequently, for plots that have received one or more susceptible legumes other than pea as a main, intermediate, associated or companion crop, the risk may be underestimated. Only the bioassay can be used to estimate the risk in these plots*.
*Susceptible legumes: lentil, alfalfa, chickling vetch, certain species/varieties of vetch (Access the test) "