Section:
Bilateral Contracts and Grants with Industry
Collaboration with ERTUS on phytosanitary treatment planning
In planning winary operations (most importantly phytosanitary
treatments on the wine tree) under wheather forcast uncertainty, one
searches for solutions that remain feasible and “cheap” in case of
perturbation in the data. We consider the planning and scheduling of
the operations that arise over a one-year horizon. More precisely,
the operations to be sheduled include tasks related to soil care, or
grape tree care: cutting, line building, thinning out leaves,
, and chemical treatments. The latter are a main focus of
our study since one of the principal goals of better planning is to
reduce the amount of chemical treatments by selecting the
appropriate products and schemes, but also by spacing out
treatements while guarantying a desease free vineyard with some
confidence. Each of the scheduled tasks requires its own resource,
so the planning also triggers equipement and raw products selection
decisions. The objective is to minimize both equipment and product
costs augmented by an evaluation of the hazard of chemical product
use. The planning should be “robust” to seasonal variations on the
proper time frame for scheduling tasks.
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