Weed management has been one of the most difficult tasks for arable farmers. Even if ploughing and tillage is often put forward, no-till and more widely Conservation Agriculture has brought a complete set of new approaches and options in order to reduce quite drastically weeds, save on cost of establishment and profit of better organised soil structure. During this hour we will go from seed bank management, impact of no tillage as well as cover-crops, rotation and fertility set up. We will also address the connection with animal production. The idea is to leave you with the maximum options in order to keep your weeds guessing!