From lesion to region : epidemiology and management of potato late blight.

This thesis describes the results of a project aimed at quantification of infection pressure from distant sources of Phytophthora infestans and its consequences for the fungicide requirements in potato crops. An interdisciplinary analysis of the regional late blight problem is carried out through model development, through experimental parameterisation and through analysis and scenario studies that investigate possibilities for effective control of the disease at the regional level.

The models that are developed, combined with information about presence and severity of sources can be used in practice to give farmers site-specific spray recommendations...