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Sci Rep

Title:		Electrophysiological and behavioural response of Philaenus spumarius to essential oils and aromatic plants
Author(s):		Ganassi S; Cascone P; Domenico CD; Pistillo M; Formisano G; Giorgini M; Grazioso P; Germinara GS; Cristofaro A; Guerrieri E;
Address:		"University of Molise, Department of Agricultural, Environmental and Food Sciences, Campobasso, 86100, Italy. National Research Council of Italy, Institute for Sustainable Plant Protection, Department of Biology, Agriculture and Food Sciences, Portici, Na, 80055, Italy. University of Foggia, Department of the Sciences of Agriculture, Food and Environment, Foggia, 71122, Italy. University of Modena and Reggio Emilia, Department of Life Sciences, Modena, 41125, Italy. University of Molise, Department of Agricultural, Environmental and Food Sciences, Campobasso, 86100, Italy. decrist@unimol.it"
Journal Title:		Sci Rep
Year:		2020
Volume:		20200220
Issue:		1
Page Number:		3114 -
DOI:		10.1038/s41598-020-59835-1
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"The meadow spittlebug, Philaenus spumarius, is a highly polyphagous widespread species, playing a major role in the transmission of the bacterium Xylella fastidiosa subspecies pauca, the agent of the 'Olive Quick Decline Syndrome'. Essential oils (EOs) are an important source of bio-active volatile compounds that could interfere with basic metabolic, biochemical, physiological, and behavioural functions of insects. Here, we report the electrophysiological and behavioural responses of adult P. spumarius towards some EOs and related plants. Electroantennographic tests demonstrated that the peripheral olfactory system of P. spumarius females and males perceives volatile organic compounds present in the EOs of Pelargonium graveolens, Cymbopogon nardus and Lavandula officinalis in a dose-dependent manner. In behavioral bioassays, evaluating the adult responses towards EOs and related plants, both at close (Y-tube) and long range (wind tunnel), males and females responded differently to the same odorant. Using EOs, a clear attraction was noted only for males towards lavender EO. Conversely, plants elicited responses that varied upon the plant species, testing device and adult sex. Both lavender and geranium repelled females at any distance range. On the contrary, males were attracted by geranium and repelled by citronella. Finally, at close distance, lavender and citronella were repellent for females and males, respectively. Our results contribute to the development of innovative tools and approaches, alternative to the use of synthetic pesticides, for the sustainable control of P. spumarius aiming to contrasting the expansion of X. fastidiosa"
Keywords:		"Animals Bacterial Infections/microbiology *Behavior, Animal Biological Assay *Electrophysiological Phenomena Female Hemiptera/*drug effects Insect Repellents Insect Vectors/microbiology Male Odorants Oils, Volatile/*pharmacology Plant Diseases/microbiolog;"
Notes:		"MedlineGanassi, Sonia Cascone, Pasquale Domenico, Carmela Di Pistillo, Marco Formisano, Giorgio Giorgini, Massimo Grazioso, Pasqualina Germinara, Giacinto S Cristofaro, Antonio De Guerrieri, Emilio eng Research Support, Non-U.S. Gov't England 2020/02/23 Sci Rep. 2020 Feb 20; 10(1):3114. doi: 10.1038/s41598-020-59835-1"