BioControl Agents in Europe: Substitution Plant Protection Active Substances or a New Paradigm?

Biocontrol agent (BCA) plant protection active substances composed from microorganisms, semiochemicals and substances from natural origins are increasing in Europe, since their entry into force of Regulation (EC) 1107/2009, in number and as a percentage of total active substances. As they are included in the scope of plant protection products (PPPs), this raises the question as to whether they are only substitute active substances, more socially acceptable, sustainable and environmentally preferable, or really another way of managing bioaggressors, pests and diseases. As we have conducted a survey of all active substances listed in all Parts of Regulation EU 540/2011 and compared chemical to BCA active substances, described their evolution and characteristics since 2011 and predicted the global perspective in the future years for both chemical, which are in decline, and BCA AS separately, these works raised the question of whether these BCA AS are a substitution, as is often the case for users, for the previous chemical AS, or whether they are fundamentally different new substances, which clearly obey a new vision of crop protection. This study therefore encompasses all active substances approved at any time in Europe since 2011 for both categories, whether still approved or not. At the end of this assessment, the following conclusion can be drawn: BCA AS are mainly fundamentally different substances from chemical AS, in all the compartments studied. A comparison between BCAs and chemical active substances allowed under (EC) 1107/2009 PPP Regulation is described together with a characterisation of BCA AS listed in EC 540/2011 PPP Regulation. Finally, the specific distinction of BCA vs. chemical active substance profile is analysed. This work allows us to conclude on the evolution of crop protection and the means that must be implemented to face current and new threats.