2016-2017: Managing OSR volunteers in subsequent oilseed rape crops

In recent years there have been many new opportunities for farmers to grow 'High Erucic Acid Rape (HEAR)' largely due to the rapidly growing interest in industrial crops. The unique properties of HEAR oil and its constituents are irreplaceable in a variety of industrial and food applications, including high temperature lubricants, slip agents, printing ink, cosmetics and consumable spreads. Consequently, global demand is growing, which provides an opportunity for expansion of HEAR production. However, in order to encourage farmers to consider HEAR production as a viable opportunity, greater understanding is required regarding any risks they should mitigate particularly with respect to the management of volunteer oilseed rape. This project, for an industry partner, undertook a short state-of-the-art review to identify current scientific understanding regarding the risks of growing HEAR crops and the management of volunteer oilseed rape.


  • Warner, D.J. & Lewis, K.A. (2019). Evaluation of the Risks of Contaminating Low Erucic Acid Rapeseed with High Erucic Rapeseed and Identification of Mitigation Strategies. Agriculture, 9(9), 190. DOI.


Dr. Doug Warner

University of Hertfordshire
University of Hertfordshire, 2020.