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Essential oils-based repellents for the management of Myzus persicae and Macrosiphum euphorbiae

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Abstract

Aphids are one of the major agricultural pests in the world. Their pest management in pepper greenhouses is based on integrated control with release of natural enemies and pesticide treatments used in specific conditions. Essential oils may be used as an eco-friendly alternative for the control of this pest. In this work, we study the repellent effect of essential oils and pure compounds against aphids by two-choice bioassays. (E)-anethole, geraniol, farnesol, and (Z)-jasmone were the most repellent compounds for Myzus persicae and Macrosiphum euphorbiae (RD50 = 0.011 − 0.086 µl/cm2). Farnesol at dose of 10 µL attracts natural enemies of aphids, Aphidius colemani adults and Sphaerophoria rueppellii larvae, in y-tube olfactometer bioassays. A residual toxicity bioassay, using a computer-controlled spraying apparatus, showed a slight toxicity (< 20% mortality) against larvae of S. rueppellii when exposed to treatments of (E)-anethole, farnesol, or (Z)-jasmone individually. The foliar application of farnesol+(E)–anethole (1:1) nanoemulsions on plants infested with aphids resulted in a reduction of the population growth ratio of M. persicae (ri =  − 0.78) and M. euphorbiae (ri =  − 3.85). Among the tested compounds, farnesol is a promising compound to be introduced in aphid management for its potential as a repellent and aphicide, as well as an attractant of some natural enemies of this pest.

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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

This work was funded by the research projects (INIA RTA2014-00001 and INIA RTA2017-00001) supported by the National Institute for Agricultural and Food Research and Technology (INIA, Spain), FEDER funds and CGL2016-79054 supported by the Spanish Ministry of Science and Innovation. Manuel Cantó acknowledges financial support from the predoctoral research fellowship INIA CDP2016-0092 (funded by INIA, Spain), and the kind assistance of Santiago González and Miguel Ocaña during the experiments. Thanks to CIBIO Research Institute of University of Alicante where olfactometer bioassays were carried out.

Funding

This study was funded by: Research projects INIA RTA2014-00,001 and INIA RTA2017-00,001, supported by the National Institute for Agricultural and Food Research and Technology (INIA, Spain). Research project CGL2016-79,054 supported by the Spanish Ministry of Science and Innovation. Manuel Cantó-Tejero received a predoctoral research fellowship INIA CDP2016-0092 funded by the National Institute for Agricultural and Food Research and Technology (INIA, Spain). The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

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Correspondence to Manuel Cantó-Tejero.

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This article does not contain any studies with human participants or animals (other than insects) performed by any of the authors.

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Communicated by Chris Cutler.

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Cantó-Tejero, M., Casas, J.L., Marcos-García, M.Á. et al. Essential oils-based repellents for the management of Myzus persicae and Macrosiphum euphorbiae. J Pest Sci 95, 365–379 (2022). https://doi.org/10.1007/s10340-021-01380-5

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  • DOI: https://doi.org/10.1007/s10340-021-01380-5

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