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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