PLASMO online – control of grapevine downy mildew

The Internet represents a very powerful tool to disseminate information among growers. The many advantages are the low cost, the interactivity with the end user, the real timedistribution of information and so on. With this aim, in the frame of the activity of COST 718 for the "Application of Meteorology to Agriculture", a WWW version of PLASMO model war realised for the online simulation of grapevine downy mildew.The model simulates the development of Plasmopora viticola using several agrometeorological variables as input. The results of a sensitivity analysis have been discussed in order to evaluate model responsesto the modification of tuning parameters.