Assessing the insecticidal effect of Citrus aurantium and Nerium oleander extracts and basalt "Farina di Basalto®" as biological alternatives to control Aphis punicae and Planococcus citri in an organic pomegranate orchard

Mohamed Elimem, Rym Jaouadi, Thameur Bouslema, Maha Kalboussi, Chaima Lahfef, Slim Rouz, Hassan Kharroubi, Abdennacer Boulila, Sofien Kouki, Giuliano Ragnoni, Gianluca Pizzuti, Fabio Primavera and Alessandro Riccini
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Rym Jaouadi: Laboratory of Agriculture Production Systems and Sustainable Development (LR03AGR02), Department of Agricultural Production, Higher School of Agriculture of Mograne, University of Carthage, Mograne-Zaghouan, Tunisia
Thameur Bouslema: LR21AGR03-Production and Protection for a Sustainable Horticulture, University of Sousse, 10 Regional Research Centre on Horticulture and Organic Agriculture, Chott-11 Mariem, Tunisia
Maha Kalboussi: Laboratory of Agriculture Production Systems and Sustainable Development (LR03AGR02), Department of Agricultural Production, Higher School of Agriculture of Mograne, University of Carthage, Mograne-Zaghouan, Tunisia
Chaima Lahfef: Laboratory of Agriculture Production Systems and Sustainable Development (LR03AGR02), Department of Agricultural Production, Higher School of Agriculture of Mograne, University of Carthage, Mograne-Zaghouan, Tunisia
Slim Rouz: Laboratory of Agriculture Production Systems and Sustainable Development (LR03AGR02), Department of Agricultural Production, Higher School of Agriculture of Mograne, University of Carthage, Mograne-Zaghouan, Tunisia
Hassan Kharroubi: Higher School of Engineer of Medjez El Beb, University of Jendouba, Medjez ElBeb, Béja, Tunisia
Abdennacer Boulila: Laboratory of Natural Substances, National Institute of Research and Physico-chemical Analyses, Biotechpole of Sidi Thabet, Ariana, Tunisia
Sofien Kouki: Higher School of Engineer of Medjez El Beb, University of Jendouba, Medjez ElBeb, Béja, Tunisia
Giuliano Ragnoni: Basalti Orvieto srl -Loc Cornale, Castek Viscardo, Italy
Gianluca Pizzuti: Basalti Orvieto srl -Loc Cornale, Castek Viscardo, Italy
Fabio Primavera: Basalti Orvieto srl -Loc Cornale, Castek Viscardo, Italy
Alessandro Riccini: Basalti Orvieto srl -Loc Cornale, Castek Viscardo, Italy

Plant Protection Science, 2023, vol. 59, issue 4, 356-368

Abstract: This study aims to evaluate the efficiency of basalt with two botanical aqueous extracts of Citrus aurantium and Nerium oleander (50g/L) against Aphis punicae and Planococcus citri in an organic pomegranate orchard. Basalt was applied as a foliar spray with two doses (1.5% and 3%), in the ground as a fertiliser (1.5%), and as a combined application (1.5%). Phenolic compounds of both plants were identified by HPLC-PDA/ESI-MS analysis. Seven and six flavonoids were detected in C. aurantium and N. oleander extracts, respectively. Hesperidin was more abundant in C. aurantium extracts; however, N. oleander extracts contained more quercetin rutinoside. A. punicae populations were significantly higher in control trees compared to the treated ones. A. punicae mortality rates reached high values above 90% for basalt and plants extracts and efficacy rates exceeded 80%. P. citri mortality rates reached 88% and 77%, and efficacy rates exceeded 75% and 66% for basalt and plant extracts, respectively. These findings may help to plan Integrated pest management strategies in organic orchards to avoid toxic chemical pesticides.

Keywords: basalt; biological control; extracts; efficacy rate; HPLC; mortality rate (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:59:y:2023:i:4:id:111-2022-pps

DOI: 10.17221/111/2022-PPS

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