Minimisation de l’utilisation des pesticides en systèmes de grandes cultures et cultures légumières en Hauts-de-France

Minipest project, conducted over six years, aims at combining several agroecological levers in order to reduce as far as possible the dependence of two cropping systems in the Hauts-de-France region (field crops and vegetable crops) on conventional plant protection products. After five years of experimentation, most of the decision rules have been successfully applied, and the feasibility of the levers has been analyzed. Overall, the technical and agronomic performance of the levers applied and the results in terms of yield and gross margin are satisfactory and promising. However, some of the problems identified are not totally solved with the available technicity, such as onion weed control and the modulation of pest nuisance thresholds according to beneficiary population levels. The encouraging agroeconomic indicators found will allow the transfer of knowledge to producers and trainees.