This need for research has been identified in FG 32 on “Non-chemical weed management”. If you want to know more about it, check the final report of the Focus Group.
More research effort should be devoted to 1) New sources of bioherbicide candidates; 2) Developing techniques for the cultural and genetic enhancement of bioherbicidal organisms; 3) Increasing knowledge about the mechanisms underlying these effects. It is important to achieve consistent efficacy with biocontrol agents, as well as to evaluate potential impacts on human and ecosystem health; 4) Evaluating bioherbicides in field trials in different crops and different regions. At present, bioherbicide efficiency is usually lower than that obtainable with chemical control. Bioherbicides should be assessed concurrently with other weed management techniques in cropping system experiments. A better understanding of the ecology of field-applied antagonists may lead to an optimisation of formulations, and time and mode of application, with beneficial effects on the level of protection obtainable; 5) Developing and evaluating formulations to improve performance and standardisation of selected bioherbicides. Although there is a considerable number of candidate species that have been considered for this purpose, the major challenge to successful implementation of this strategy is the development of techniques to maintain consistent efficacy in field conditions.