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Rondoni G, Mattioli E, Giannuzzi VA, Chierici E, Betti A, Natale G, Petacchi R, Famiani F, Natale A, Conti E. Evaluation of the effect of agroclimatic variables on the probability and timing of olive fruit fly attack. FRONTIERS IN PLANT SCIENCE 2024; 15:1401669. [PMID: 39077508 PMCID: PMC11284310 DOI: 10.3389/fpls.2024.1401669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 06/10/2024] [Indexed: 07/31/2024]
Abstract
Agroclimatic variables may affect insect and plant phenology, with unpredictable effects on pest populations and crop losses. Bactrocera oleae Rossi (Diptera: Tephritidae) is a specific pest of Olea europaea plants that can cause annual economic losses of more than one billion US dollars in the Mediterranean region. In this study, we aimed at understanding the effect of olive tree phenology and other agroclimatic variables on B. oleae infestation dynamics in the Umbria region (Central Italy). Analyses were carried out on B. oleae infestation data collected in 79 olive groves during a 7-year period (from 2015 to 2021). In July-August, B. oleae infestation (1% attack) was negatively affected by altitude and spring mean daily temperatures and positively by higher winter mean daily temperatures and olive tree cumulative degree days. In September-October, infestation was negatively affected by a positive soil water balance and high spring temperatures. High altitude and cumulative plant degree days were related to delayed attacks. In contrast, high winter and spring temperatures accelerated them. Our results could be helpful for the development of predictive models and for increasing the reliability of decision support systems currently used in olive orchards.
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Affiliation(s)
- Gabriele Rondoni
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Elisabetta Mattioli
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
- TeamDev – Software, GIS and Web Engineering, Perugia, Italy
| | - Vito Antonio Giannuzzi
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Elena Chierici
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | | | - Gaetano Natale
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
- O.P.O.O., Perugia, Italy
| | - Ruggero Petacchi
- Center of Plant Sciences, Scuola Superiore Sant’Anna, Pisa, Italy
| | - Franco Famiani
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Antonio Natale
- TeamDev – Software, GIS and Web Engineering, Perugia, Italy
| | - Eric Conti
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
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Econdi S, Bisio C, Carniato F, Marchesi S, Paul G, Gargani E, Cutino I, Caselli A, Guidotti M. Aldehyde-containing clays: a sustainable approach against the olive tree pest, Bactrocera oleae. Dalton Trans 2024; 53:9995-10006. [PMID: 38814123 DOI: 10.1039/d4dt00705k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
A set of organic/inorganic layered materials was obtained by functionalizing a montmorillonite-containing bentonite natural clay with linear aliphatic C6 or C7 aldehydes through a cost-effective and technologically simple incipient-wetness deposition method. The solids were investigated by means of a multi-technique approach (X-ray powder diffraction, XRPD, scanning electron microscopy, SEM, Fourier-transform infrared spectroscopy, FT-IR, thermogravimetric analysis, TGA, elemental analysis and solid-state nuclear magnetic resonance, ssNMR) to clarify the nature of the deposited organic species and the mode of interaction between the aldehyde and the clay. Since both natural clays and short-chain linear aldehydes find application as alternative strategies in the control of the olive fruit fly, Bactrocera oleae, the hybrid layered materials were tested under real-life conditions and their insect-inhibiting capability was evaluated in open-field trials on olive tree orchards in Tuscany, Central Italy. Specific tests were conducted to evaluate the resistance of the solids to weathering and their capability to provide a constant and long-lasting release of the bioactive ingredient. Aldehyde-containing bentonite clays have shown promising performance in controlling B. oleae infestation (with up to 86-95% reduction of affected olive fruits) in open-field trials across two years in two locations with different pedological and meteo-climatic characteristics.
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Affiliation(s)
- Stefano Econdi
- CNR-Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Via C. Golgi 19, Milan, Italy.
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, Milan, Italy
| | - Chiara Bisio
- CNR-Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Via C. Golgi 19, Milan, Italy.
- Dipartimento di Scienze e Tecnologie Avanzate, Università del Piemonte Orientale, Via T. Michel, Alessandria, Italy
| | - Fabio Carniato
- Dipartimento di Scienze e Tecnologie Avanzate, Università del Piemonte Orientale, Via T. Michel, Alessandria, Italy
| | - Stefano Marchesi
- Dipartimento di Scienze e Tecnologie Avanzate, Università del Piemonte Orientale, Via T. Michel, Alessandria, Italy
| | - Geo Paul
- Dipartimento di Scienze e Tecnologie Avanzate, Università del Piemonte Orientale, Via T. Michel, Alessandria, Italy
| | - Elisabetta Gargani
- Consiglio per la Ricerca in agricoltura e l'analisi dell'Economia Agraria CREA- Centro di ricerca Difesa e Certificazione DC, Florence, Italy
| | - Ilaria Cutino
- Consiglio per la Ricerca in agricoltura e l'analisi dell'Economia Agraria CREA- Centro di ricerca Difesa e Certificazione DC, Florence, Italy
| | - Alessandro Caselli
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, Milan, Italy
| | - Matteo Guidotti
- CNR-Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Via C. Golgi 19, Milan, Italy.
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Daher E, Chierici E, Urbani S, Cinosi N, Rondoni G, Servili M, Famiani F, Conti E. Characterization of Olive Fruit Damage Induced by Invasive Halyomorpha halys. INSECTS 2023; 14:848. [PMID: 37999047 PMCID: PMC10671571 DOI: 10.3390/insects14110848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023]
Abstract
The brown marmorated stink bug, Halyomorpha halys (Stål), is an invasive species causing economic crop losses. This species was recently detected attacking olive fruits. The aim of this study was to characterize feeding damage. Olive samples were initially collected from a field where H. halys was reported to cause damage to olive fruits. Hence, we conducted a field trial on the Moraiolo variety using sleeve cages to test the effect of H. halys feeding pressure on olive fruit drop and evaluated the effect of feeding on fruit quality. We tested two densities of H. halys (two or eight adults/cage) at two different stages of olive development, pre- and post-pit hardening. High pressure of H. halys before pit hardening caused a significant fruit drop compared to the control. In addition, chemical analysis of damaged and infested fruits revealed higher levels of total phenols compared to healthy fruits. These findings indicate that feeding by H. halys induced a stress response in the plants that could translate in quality variations in the olive drupes.
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Affiliation(s)
| | | | | | | | - Gabriele Rondoni
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121 Perugia, Italy; (E.D.); (E.C.); (S.U.); (N.C.); (M.S.); (F.F.); (E.C.)
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Collection and Processing of Behavioural Data of the Olive Fruit Fly, Bactrocera oleae, When Exposed to Olive Twigs Treated with Different Commercial Products. DATA 2022. [DOI: 10.3390/data7070085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The need for the development of sustainable control methods of herbivorous insects implies that new molecules are proposed on the market. Among the different effects the new products may have on the target species, the alteration of insect oviposition behaviour might be considered. At the scope, parallel simple behavioural assays can be conducted in arena. Freely available software can be used to track observed events, but they often need intensive customization to the specific experimental design. Hence, integrating such software with, e.g., R environment, can provide a much more effective protocol development for data collection and analysis. Here we present a dataset and protocol for processing data of the oviposition behaviour of the olive fruit fly, Bactrocera oleae, when exposed to olive twigs treated with different commercial products. Treatments were rock powder, propolis, a mixture of rock powder and propolis, copper oxychloride, copper sulphate, and water as the experimental control. JWatcher was used to simultaneously collect data from 12 arena assays and ad-hoc developed R code was used to process raw data for data analyses. The procedure described here is novel and represents a valuable and transferable protocol to analyse observational events in B. oleae, as well as other biological systems.
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