Attacks by flee beetles is a major threat to the cultivation of spring oilseed rape in Sweden. The situation is especially problematic since seed treatments with neonicotinoid insecticides has been banned, and this has been the main control method against flee beetles in spring oilseed rape. We will investigate and economically evaluate reduced tillage and increased sowing density as potential alternative control methods of flee beetle in spring oilseed rape. A main objective is to develop sustainable control methods that can be applied in Swedish cultivation of oilseeds. The trials will increase our understanding of integrated pest management options and provide a basis for a long term and sustainable control strategy of flee beetles in oilseed crops. The project is performed in dialogue with a reference group with representatives from Swedish seed and oilseed growers association, the Swedish board of agriculture, Syngenta, and the Swedish Rural Economy and Agricultural Societies.