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J Agric Food Chem

Title:		"Sex Pheromone of the Invasive Mealybug Citrus Pest, Delottococcus aberiae (Hemiptera: Pseudococcidae). A New Monoterpenoid with a Necrodane Skeleton"
Author(s):		Vacas S; Navarro I; Marzo J; Navarro-Llopis V; Primo J;
Address:		"CEQA-Instituto Agroforestal del Mediterraneo , Universitat Politecnica de Valencia , Camino de Vera s/n, edificio 6C-5a planta , 46022 Valencia ( Valencia ), Spain. Ecologia y Proteccion Agricola SL , Pol. Ind. Ciutat de Carlet , 46240 Carlet ( Valencia ), Spain"
Journal Title:		J Agric Food Chem
Year:		2019
Volume:		20190819
Issue:		34
Page Number:		9441 - 9449
DOI:		10.1021/acs.jafc.9b01443
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Native to sub-Saharan Africa, Delottococcus aberiae De Lotto (Hemiptera: Pseudoccidae) is an invasive mealybug that has been recently reported in Europe, seriously damaging citrus production in eastern Spain. In this study, we isolated and determined the structure of the sex pheromone of D. aberiae, to provide a highly specific and effective lure for detecting, monitoring, and potentially controlling this pest. The volatile profile of D. aberiae virgin and mated females was studied by aeration and collection of effluvia in Porapak-Q. The resulting extracts were analyzed by gas chromatography coupled to mass spectrometry (GC-MS), revealing a candidate compound specific of virgin females. GC-MS and nuclear magnetic resonance spectroscopy data evidenced a new compound, (4,5,5-trimethyl-3-methylenecyclopent-1-en-1-yl)methyl acetate, with an unusual beta-necrodol skeleton. This compound was synthesized and shown to be attractive to male D. aberiae in both laboratory and field experiments. A GC analysis using an enantioselective stationary phase and polarimetry analyses of the synthetic enantiomers showed the natural compound emitted by virgin females to be the - enantiomer"
Keywords:		Animals Citrus/parasitology Female Gas Chromatography-Mass Spectrometry Hemiptera/chemistry/*metabolism Male Molecular Structure Plant Diseases/*parasitology Sex Attractants/*chemistry/metabolism Spain Stereoisomerism attractant chemical ecology lure semi;
Notes:		"MedlineVacas, Sandra Navarro, Ismael Marzo, Javier Navarro-Llopis, Vicente Primo, Jaime eng 2019/08/06 J Agric Food Chem. 2019 Aug 28; 67(34):9441-9449. doi: 10.1021/acs.jafc.9b01443. Epub 2019 Aug 19"