Give the price reduction rate associated with the infection on the (grapevine) fruits
price_reduction(I_host, N_host, Nhost, Nyears, nTSpY)
A matrix with the price reduction rate per cultivar and per year of simulation
number of infected host for cultivars and for timestep
total number of hosts for cultivars and for timestep
total number of cultivars considered in the simulation
number of simulated cropping seasons
number of timestep (e.g. days) per cropping season
Savary, S., Delbac, L., Rochas, A., Taisant, G., & Willocquet, L. (2009). Analysis of nonlinear relationships in dual epidemics, and its application to the management of grapevine downy and powdery mildews. Phytopathology, 99(8), 930-942.