Late blight caused by Phytophthora infestans is a devastating disease of potato which
during certain years assumes epiphytotic proportions causing huge loss to the seed
and ware potato crop.
Worldwide potato crop losses due to late blight have been
estimated at € 12 billion (Haverkort et al.,2009). Forecasting appearance of the disease
in advance can greatly help potato farmers to take prophylactic sprays and prevent or
delay appearance of the disease and thus reduce the losses. Weather conditions such as temperature,
relative humidity, rainfall, dew, sunshine hours etc. have a direct effect on P. infestans (De Weille, 1963).
These parameters have been exploited to develop different models to forecast the disease both
in India and elsewhere.
Yuktix Potato late blight model