« Previous AbstractConditioning Native Telenomus and Trissolcus (Hymenoptera: Scelionidae) Egg Parasitoids to Recognize the Exotic Brown Marmorated Stink Bug (Heteroptera: Pentatomidae: Halyomorpha halys)    Next Abstract"Floral micromorphology and transcriptome analyses of a fragrant Vandaceous Orchid, Vanda Mimi Palmer, for its fragrance production sites" »

Bull Entomol Res

Title:		Kairomones from Euschistus heros egg masses and their potential use for Telenomus podisi parasitism improvement
Author(s):		Tognon R; Sant'Ana J; Michereff MFF; Laumann RA; Borges M; Blassioli-Moraes MC; Redaelli LR;
Address:		"Department of Crop Protection, PPG-Fitotecnia, Federal University of Rio Grande do Sul (UFRGS), Av. Bento Goncalves, 7712, 91540-000 Porto Alegre, RS, Brazil. Genetic Resources and Biotechnology Laboratory (EMBRAPA/Cenargen), 70849-970, Brasilia, DF, Brazil"
Journal Title:		Bull Entomol Res
Year:		2020
Volume:		20200508
Issue:		5
Page Number:		638 - 644
DOI:		10.1017/S000748532000019X
ISSN/ISBN:		1475-2670 (Electronic) 0007-4853 (Linking)
Abstract:		"Telenomus podisi Ashmead (Hymenoptera: Scelionidae) is the most important egg parasitoid of Euschistus heros (Fabricius) (Hemiptera: Pentatomidae), and its successful parasitism is related to their searching ability to find suitable hosts under a complex chemical environment using host-reliable cues. Thus, the objective of this study was to elucidate chemical substances on the external layer of E. heros eggs and report its potential kairomonal activity on T. podisi. We tested female wasps in olfactometer system to synthetic compounds obtained from a chemical identification of E. heros egg masses. The synthetic blend was also evaluated in parasitism tests under laboratory and semi-field conditions. We identified 31 substances from egg surface extracts, including monoterpenes, aldehydes and alkanes. Among those compounds, a synthetic solution including camphene, beta-pinene, limonene and benzaldehyde-induced chemotaxic behaviour on the wasps and increased the parasitism on E. heros eggs, either in laboratory or semi-field test, suggesting its potential use to T. podisi manipulation and parasitism improvement"
Keywords:		"Animals Behavior, Animal/drug effects Female Heteroptera/*chemistry/parasitology Ovum/*chemistry/parasitology Pheromones/*pharmacology Wasps/*drug effects Behavioural manipulation Pentatomidae Scelionidae biological control improvement chemical identifica;"
Notes:		"MedlineTognon, R Sant'Ana, J Michereff, M F F Laumann, R A Borges, M Blassioli-Moraes, M C Redaelli, L R eng England 2020/05/10 Bull Entomol Res. 2020 Oct; 110(5):638-644. doi: 10.1017/S000748532000019X. Epub 2020 May 8"