Mediterranean Plants as Potential Source of Biopesticides: An Overview of Current Research and Future Trends

Metabolites. 2023 Aug 22;13(9):967. doi: 10.3390/metabo13090967.

Abstract

The development and implementation of safe natural alternatives to synthetic pesticides are urgent needs that will provide ecological solutions for the control of plant diseases, bacteria, viruses, nematodes, pests, and weeds to ensure the economic stability of farmers and food security, as well as protection of the environment and human health. Unambiguously, production of botanical pesticides will allow for the sustainable and efficient use of natural resources and finally decrease the use of chemical inputs and burden. This is further underlined by the strict regulations on pesticide residues in agricultural products and is in harmony with the Farm to Fork strategy, which aims to reduce pesticide use by 50% by 2030. Thus, the present work aims to compile the scientific knowledge of the last 5 years (2017-February 2023) regarding the Mediterranean plants that present biopesticidal effects. The literature review revealed 40 families of Mediterranean plants with at least one species that have been investigated as potential biopesticides. However, only six families had the highest number of species, and they were reviewed comprehensively in this study. Following a systematic approach, the extraction methods, chemical composition, biopesticidal activity, and commonly used assays for evaluating the antimicrobial, pesticidal, repellant, and herbicidal activity of plant extracts, as well as the toxicological and safety aspects of biopesticide formulation, are discussed in detail. Finally, the aspects that have not yet been investigated or are under-investigated and future perspectives are highlighted.

Keywords: alternative agriculture; antimicrobial activity; biopesticides; chemical composition; essential oils; extraction methods; herbicidal activity; insecticidal activity; plant extracts.

Publication types

  • Review

Grants and funding

The manuscript was partially funded by the project entitled “Development of Bio-Pesticides and -Herbicides for Sustainable Agricultural Crop Production”, Acronym "BIOPESTICIDES” is partially funded by the General Secretariat for Research and Innovation of the Ministry of Development and Investments of Greece (ΓΓPRM-0357186), under the PRIMA Programme. PRIMA is an Art.185 initiative supported and co-funded under Horizon 2020, the European Union’s Programme for Research, and Innovation.