title: Impact of aphid alarm pheromone release on virus transmission efficiency: When pest control strategy could induce higher virus dispersion.
abstract: Aphids cause serious damages to crops not only by tacking sap but also by transmitting numerous viruses. To develop biological control, the aphid alarm pheromone, namely E-β-farnesene (EβF), has been demonstrated to be efficient to repel aphids and as attract beneficials, making it a potential tool to control aphid pests. Considering aphids also as virus vectors, changes of their behavior could also interfere with the virus acquisition and transmission process. Here, a combination of two aphid species and two potato virus models were selected to test the influence of EβF release on aphid and virus dispersion under laboratory conditions. EβF release was found to significantly decrease the population of Myzus persicae and Macrosiphum euphorbiae around the infochemical releaser but simultaneously also increasing the dispersal of Potato Virus Y (PVY). At the opposite, no significant difference for Potato Leaf Roll Virus (PLRV) transmission efficiency was observed with similar aphid alarm pheromone releases for none of the aphid species. These results provide some support to carefully consider infochemical releasers not only for push-pull strategy and pest control but also to include viral disease in a the plant protection to aphids as they are also efficient virus vectors. Impact of aphid kinds and transmission mechanisms will be discussed according to the large variation found between persistent and non persistent potato viruses and interactions with aphids and related infochemicals.
authors.affiliation: Department of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, PR China; Functional and evolutionary Entomology, Gembloux Agro-Bio-Tech, University of Liège, Gembloux, Belgium.
authors.forename: Fang-Jing
authors.initials: FJ
authors.lastname: Lin
authors.affiliation: Functional and evolutionary Entomology, Gembloux Agro-Bio-Tech, University of Liège, Gembloux, Belgium.
authors.forename: Emilie
authors.initials: E
authors.lastname: Bosquée
authors.affiliation: Department of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, PR China.
authors.forename: Ying-Jie
authors.initials: YJ
authors.lastname: Liu
authors.affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pest, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, 2 West Yuanmingyuan Road,Beijing 100193, PR China.
authors.forename: Ju-Lian
authors.initials: JL
authors.lastname: Chen
authors.affiliation: Department of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, PR China. Electronic address: liuyong@sdau.edu.cn.
authors.forename: Liu
authors.initials: L
authors.lastname: Yong
authors.affiliation: Functional and evolutionary Entomology, Gembloux Agro-Bio-Tech, University of Liège, Gembloux, Belgium. Electronic address: Frederic.Francis@ulg.ac.be.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Francis
mesh_terms: D000818:Animals; D001042:Aphids / Q000502:physiology / Q000821:virology*; D010572:Pest Control, Biological / Q000379:methods*; D010675:Pheromones / Q000378:metabolism; D010935:Plant Diseases / Q000821:virology*; D018515:Plant Leaves / Q000821:virology; D010942:Plant Viruses / Q000302:isolation & purification / Q000502:physiology*; D017800:Potyvirus / Q000302:isolation & purification / Q000502:physiology; D012717:Sesquiterpenes / Q000378:metabolism; D011198:Solanum tuberosum / Q000821:virology; D014026:Nicotiana / Q000821:virology*
chemical_list: D010675:Pheromones; D012717:Sesquiterpenes; C062671:beta-farnesene
keywords: E-β-farnesene; Macrosiphum euphorbiae; Myzus persicae; PLRV; PVY; Virus transmission efficiency