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Denoirjean T, Belhassen D, Doury G, Ameline A, Werrie PY, Fauconnier ML, Hance T, Le Goff GJ. Essential Oil Trunk Injection Into Orchard Trees: Consequences on the Performance and Preference of Hemipteran Pests. JOURNAL OF ECONOMIC ENTOMOLOGY 2023; 116:389-398. [PMID: 36634219 DOI: 10.1093/jee/toac203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Indexed: 05/30/2023]
Abstract
Apples and pears are among the most widely cultivated fruit species in the world. Pesticides are commonly applied using ground sprayers in conventional orchards; however, most of it will not reach the target plant, increasing the contamination of nontarget organisms such as natural predators, pollinators, and decomposers. Trunk injection is an alternative method of pesticide application that could reduce risks to beneficials and workers. Essential oils represent a 'green' alternative to pesticides due to their reported insecticidal, antimicrobial, antiviral, nematicidal, and antifungal properties. The aim of this study was, therefore, to evaluate the impact that the injection of a cinnamon essential oil solution into the trunk of apple and pear trees could have on their respective pests, Dysaphis plantaginea and Cacopsylla pyri, respectively. The feeding behavior (preference), the life history traits (performance), and the timing of this effect were measured. The injection of an essential oil emulsion in trees impacted hemipteran host-plant colonization, as for both species a modification of their preference and of their performance was observed. The feeding behavior of D. plantaginea was altered as a significantly lower proportion of aphids ingested phloem sap on injected trees, suggesting that the aphids starved to death. On the contrary, the feeding behavior of the psyllids was little changed compared to the control condition, implying that the observed mortality was due to intoxication. The results presented here could theoretically be used to control these two orchard hemipteran pests, although the effectiveness in real conditions still has to be demonstrated.
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Affiliation(s)
- Thomas Denoirjean
- UMR CNRS 7058 EDYSAN (Écologie et Dynamique des Systèmes Anthropisés), Université de Picardie Jules Verne, 33 Rue St Leu, F-80039 Amiens Cedex, France
| | - Daphné Belhassen
- Earth and Life Institute, Biodiversity Research Centre, UCLouvain, ELIB - Croix du Sud 4-5, Bte L7.07.04, 1348 Louvain-la-Neuve, Belgium
| | - Géraldine Doury
- UMR CNRS 7058 EDYSAN (Écologie et Dynamique des Systèmes Anthropisés), Université de Picardie Jules Verne, 33 Rue St Leu, F-80039 Amiens Cedex, France
| | - Arnaud Ameline
- UMR CNRS 7058 EDYSAN (Écologie et Dynamique des Systèmes Anthropisés), Université de Picardie Jules Verne, 33 Rue St Leu, F-80039 Amiens Cedex, France
| | - Pierre Yves Werrie
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Marie Laure Fauconnier
- Laboratory of Chemistry of Natural Molecules, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - Thierry Hance
- Earth and Life Institute, Biodiversity Research Centre, UCLouvain, ELIB - Croix du Sud 4-5, Bte L7.07.04, 1348 Louvain-la-Neuve, Belgium
| | - Guillaume Jean Le Goff
- Earth and Life Institute, Biodiversity Research Centre, UCLouvain, ELIB - Croix du Sud 4-5, Bte L7.07.04, 1348 Louvain-la-Neuve, Belgium
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Ha YH, Gil HY, Kim SC, Choi K, Kim JH. Genetic structure and geneflow of Malus across the Korean Peninsula using genotyping-by-sequencing. Sci Rep 2022; 12:16262. [PMID: 36171257 PMCID: PMC9519971 DOI: 10.1038/s41598-022-20513-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/14/2022] [Indexed: 11/09/2022] Open
Abstract
This study was to understand the genetic structure and diversity of the Korean Malus species. We used genotyping-by-sequencing (GBS) technology to analyze samples of 112 individuals belonging to 18 populations of wild Malus spp. Using GBS, we identified thousands of single nucleotide polymorphisms in the species analyzed. M. baccata and M. toringo, two dominant mainland species of the Korean Peninsula, were distinguishable based on their genetic structure. However, M. toringo collected from Jeju Island exhibited a different genetic profile than that from the mainland. We identified M. cf. micromalus as a hybrid resulting from the Jeju Island M. toringo (pollen donor) and the mainland M. baccata, (pollen recipient). Putative M. mandshurica distributed on the Korean Peninsula showed a high structural and genetic similarity with M. baccata, indicating that it might be an ecotype. Overall, this study contributes to the understanding of the population history and genetic structure of Malus in the Korean Peninsula.
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Affiliation(s)
- Young-Ho Ha
- Division of Forest Biodiversity, Korea National Arboretum, Pocheon, Gyeonggi-do, 11186, Republic of Korea
- Department of Life Science, Gachon University, Seongnam, Gyeonggi-do, 13120, Republic of Korea
| | - Hee-Young Gil
- Division of Forest Biodiversity, Korea National Arboretum, Pocheon, Gyeonggi-do, 11186, Republic of Korea
| | - Sang-Chul Kim
- Division of Forest Biodiversity, Korea National Arboretum, Pocheon, Gyeonggi-do, 11186, Republic of Korea
| | - Kyung Choi
- Division of Forest Biodiversity, Korea National Arboretum, Pocheon, Gyeonggi-do, 11186, Republic of Korea
| | - Joo-Hwan Kim
- Department of Life Science, Gachon University, Seongnam, Gyeonggi-do, 13120, Republic of Korea.
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