Identification of volatiles released by diapausing brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae)
Nixon, Laura; Morrison, W. R.; Rice, K. B.; Brockerhoff, E. G.; Leskey, T. C.; Guzman, F.; Khrimian, A.; Goldson, Stephen; Rostas, Michael
The brown marmorated stink bug, Halyomorpha halys, is an agricultural and urban pest that has become widely established as an invasive species of major concern in the USA and across Europe. This species forms large aggregations when entering diapause, and it is often these aggregations that are found by officials conducting inspections of internationally shipped freight. Identifying the presence of diapausing aggregations of H. halys using their emissions of volatile organic compounds (VOCs) may be a potential means for detecting and intercepting them during international freight inspections. Headspace samples were collected from aggregations of diapausing H. halys using volatile collection traps (VCTs) and solid phase microextraction. The only compound detected in all samples was tridecane, with small amounts of (E)-2-decenal found in most samples. We also monitored the release of defensive odors, following mechanical agitation of diapausing and diapause-disrupted adult H. halys. Diapausing groups were significantly more likely to release defensive odors than diapause-disrupted groups. The predominant compounds consistently found from both groups were tridecane, (E)-2-decenal, and 4-oxo-(E)-2-hexenal, with a small abundance of dodecane. Our findings show that diapausing H. halys do release defensive compounds, and suggest that volatile sampling may be feasible to detect H. halys in freight.... [Show full abstract]
Keywordspest; Halyomorpha halys; diapausing; odors; volatile sampling; defensive compounds; emissions profile; tridecane; (E)-2-decenal; 4-oxo-(E)-2-hexenal; dodecane; General Science & Technology; Animals; Heteroptera; Aldehydes; Alkanes; Alkenes; Gas Chromatography-Mass Spectrometry; Volatile Organic Compounds; Odorants; Diapause
Fields of Research070308 Crop and Pasture Protection (Pests, Diseases and Weeds); 070505 Forestry Pests, Health and Diseases; 070603 Horticultural Crop Protection (Pests, Diseases and Weeds)
CitationNixon LJ, Morrison WR, Rice KB, Brockerhoff EG, Leskey TC, Guzman F, et al. (2018). Identification of volatiles released by diapausing brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae). PLoS ONE 13(1): e0191223.
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