Decision criteria introduced in The French DSS to control late blight

The two main targets of a DSS for the Plant Protection Service are: - To satisfy the grower to give the best and more precise advice to control late blight - To answer at the missions of the Service: to know the evolution of the pathogens in the fields and around to inform the growers on the evolutions of the rules I Give the more precise advice at the best moment The first think is to determine the risk of the disease: At the moment two models Guntz-Divoux and Milsol are running and use the data of a network of meteorological stations which are checked every day by phone. If the models are very useful the scouting in field is indispensable. When the risk is known and forecasted, it is necessary to know the susceptibility of the potato cultivar to advise a spray or not. The grower want to have information to choose the fungicide. Three criteria are retained: the pressure of the disease and the symptoms in the area, the stage of the crop, the practices of the grower. There is a big interest: The grower has to observe his fields and all around, he has to take an account the risk and indicate his practices. It is necessary to notice that some regulation information are given (example: maximum of number of sprays for the fungicide). The date of treatment, how to give the information? The criteria are the epidemiologic risk and the state of the crop: protected or not and the previous indications. There are two methods: - Advice at the moment (SMS), the grower has to by ready. - Advice in advance (one the three next days), so it is necessary to introduce the weather forecast (for the three next days) every day. II The missions of the plant protection service All the information of the stage of the crops, the late blight, some information of other enemies indicated by the grower are collected by the Plant Protection Service. There is a big question about the collect of the data: The grower agrees to give the information on the disease but he is careful to give his practices, these one have to be confidential. In other hand he want to introduce automatically these information in others proceedings of traçability. We build a new tool with the "Arvalis Insitut du Vegetal" to reach these targets with the will to have permanent exchanges with the growers.vokMyynti MTT Tietopalvelut 31600 Jokioine