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Insects

Title:		"Studies on the Volatiles Composition of Stored Sheep Wool, and Attractancy toward Aedes aegypti Mosquitoes"
Author(s):		Tsikolia M; Tabanca N; Kline DL; Demirci B; Yang L; Linthicum KJ; Bloomquist JR; Bernier UR;
Address:		"European Biological Control Laboratory, U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS), 54623 Thessaloniki, Greece. Subtropical Horticulture Research Station (SHRS), U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS), Miami, FL 33158, USA. Center for Medical, Agricultural, and Veterinary Entomology (CMAVE), U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS), Gainesville, FL 32608, USA. Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskisehir 26470, Turkey. Department of Entomology and Nematology, Emerging Pathogens Institute, University of Florida, Gainesville, FL 32610, USA"
Journal Title:		Insects
Year:		2022
Volume:		20220218
Issue:		2
Page Number:		-
DOI:		10.3390/insects13020208
ISSN/ISBN:		2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking)
Abstract:		"To discover new natural materials for insect management, commercially available stored sheep wool was investigated for attractancy to female adult Aedes aegypti mosquitoes. The volatiles from sheep wool were collected by various techniques of headspace (HS) extractions and hydrodistillation. These extracts were analyzed using gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detector (GC-FID) coupled with GC-MS. Fifty-two volatile compounds were detected, many of them known for their mosquito attractant activity. Seven compounds were not previously reported in sheep products. The volatile composition of the extracts varied significantly across collections, depending on the extraction techniques or types of fibers applied. Two types of bioassay were conducted to study attractancy of the sheep wool volatiles to mosquitoes: laboratory bioassays using glass tubes, and semi-field bioassays using large, screened outdoor cages. In bioassays with glass tubes, the sheep wool hydrodistillate and its main component, thialdine, did not show any significant attractant activity against female adult Ae. aegypti mosquitoes. Semi-field bioassays in two large screened outdoor cages, each equipped with a U.S. Centers for Disease Control (CDC) trap and the various bait setups with Vortex apparatus, revealed that vibrating wool improved mosquito catches compared to the setups without wool or with wool but not vibrating. Sheep wool, when vibrated, may release intensively volatile compounds, which could serve as olfactory cues, and play significant role in making the bait attractive to mosquitoes. Sheep wool is a readily available, affordable, and environment-friendly material. It should have the potential to be used as a mosquito management and surveillance component in dynamic bait setups"
Keywords:		Gc-fid Gc-ms HS-Hayesep-Q Spme hydrodistillation semiochemicals;
Notes:		"PubMed-not-MEDLINETsikolia, Maia Tabanca, Nurhayat Kline, Daniel L Demirci, Betul Yang, Liu Linthicum, Kenneth J Bloomquist, Jeffrey R Bernier, Ulrich R eng [Agreement 60-0208-4-001 and under USDA Specific Cooperative Agreements 58-0208-0-068 and 58-0208-5-001]/Deployed War-Fighter Protection Research Program and funded by the Department of Defense through the Armed Forces Pest Management Board/ Switzerland 2022/02/26 Insects. 2022 Feb 18; 13(2):208. doi: 10.3390/insects13020208"