Working Paper 99 of the Thünen-Institut Braunschweig publishes the results of the more than 7-year-old field foxtail project. A team of scientists, practitioners and representatives of the industry has examined at two locations in Schleswig-Holstein, which successes are to be expected by alternative strategies of the Ackerfuchsschwanzbekämpfung, according to intensity and timing of tillage and order. The result was sobering. Through targeted flat stubble cultivation and the choice of the processing time, the run-on behavior of Ackerfuchsschwanz can be regulated only within limits. Without the provision of new active ingredients, current crop rotations in Schleswig-Holstein, such as WRaps - WW - WG, will no longer be feasible in the long term. Losses on selective herbicides and abandonment of a total herbicide require agronomic action by extending crop rotation. The change of leaf and culmination, summering and wintering with the inclusion of catch crops will occupy the agriculture of the future. Conservation tillage, which farmers do not want to do without because of many benefits, will also face new challenges.