2020/03/06 by Deguine, Jean-Philippe, Atiama-Nurbel, Toulassi, Soleyen, Ajaguin +17
Agricultural and Biological Sciences · Pharmacology, Toxicology and Pharmaceutics · #BIOPIPER #Biocide efficacy #Biocontrôle #Bioprotection #Efficacité biocide #Essential Oils and Antimicrobial Activity #Essential oils #Huiles essentielles #Insect Pest Control Strategies #Piperaceae #Piperaceae Chemical and Biological Studies
paper · pdf · doi:10.15454/5akb-0259
openalex publication_date 2020/03/06 · openalex created_date 2020/07/23 · openalex updated_date 2026/07/22
The BIOPIPER project is a French Innovation and Partnership project that took place in Reunion Islandfrom 2015 to 2018 with different partners of Research & Development. Its purpose was to producenatural extracts of two Piperaceae (Peperomia borbonensis and Piper borbonense) in a sustainableapproach, for a use in the context of agroecological crop protection. There were 3 general objectives:(1) Synergize the skills of partners with complementary mandates on the use of endemic plants; (2)Design and implement sustainable production of both plant extracts and evaluate their efficacy asbioprotection agents; (3) Disseminate and enhance the obtained results and products. The project wasstructured around four actions. Action 1 made it possible to design, develop and optimize the productionof the two Piperaceae to ensure optimal production of foliar biomass. Action 2 made it possible toproduce and characterize phytochemical extracts of different ecotypes of wild and cultivated plants.Action 3 measured the biocidal efficacy of extracts on various crop pests (bacteria, arthropods) of ageneric nature and of economic importance in Reunion Island and at the French national level. On fruitflies, which are fearsome pests worldwide, LD 50 and LD 95 (lethal doses of 50% and 95% of thepopulation) were measured on five species (Zeugodacus cucurbitae, Bactrocera zonata, Bactroceradorsalis, Ceratitis quilicii and Neoceratitis cyanescens), with essential oil-based extracts. Analysis of theLD 50 results showed differences between plants, ecotypes and types of extracts. LD 50 tests withessential oils were carried out on other economically important pests (Bemisia tabaci, Frankliniellaoccidentalis), a non-pest fly (Drosophila melanogaster). The essential oil of P. borbonensis has alsobeen tested on various temperate pests (Delia radicum, Meligethes aeneus, Psylliodes chrysocephala).A biocidal effect was found on all insects tested with significant variations in sensitivity. Olfactometrictests were also carried out and revealed that the essential oil of P. borbonensis is not repellent. Thisresult is encouraging and makes it possible to consider a targeted application of essential oil via bait inan "attract & kill" approach. Action 4 initiated the process of developing a regulatory folder for thecommercial use of plant or extract production. Finally, the BIOPIPER project has made it possible tocreate an operational and original consortium in partnership in order to screen, for research or servicepurposes, the biocidal activity of extracts from different plants.