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We examined the chemical composition of garlic and asafoetida essential oils and their individual and combined toxicity against larvae of Culex pipiens Linnaeus and Culex restuans Theobald (Diptera: Culicidae). The effect of the two essential oils on egg hatch was also examined. Ten and 12 compounds, respectively, were identified in garlic and asafoetida essential oils. Allyl disulfide (49.13%) and diallyl trisulfide (31.08%) were the most abundant compounds in garlic essential oil accounting for 80.2% of the total oil. In contrast, (E)-sec-butyl propenyl disulfide (30.03%), (Z)-sec-butyl propenyl disulfide (24.32%), and disulfide, methyl 1-(methylthio)propyl (21.87%) were the most abundant compounds in asafoetida essential oil. Allyl disulfide accounted for 7.38% of the total oil in asafoetida essential oil and was one of only three compounds found in both oils. For both mosquito species, garlic essential oil was more toxic than asafoetida essential oil with Cx. restuans (LC50: garlic = 2.7 ppm; asafoetida = 10.1 ppm) being more sensitive than Cx. pipiens (LC50: garlic = 7.5 ppm; asafoetida = 13.5 ppm). When combined, the two essential oils had antagonistic effects. The majority of Culex egg rafts exposed to garlic (73.1%) or asafoetida (55.8%) essential oils failed to hatch and larvae of the few that did hatch mostly died as first instars. Allyl disulfide exhibited strong ovicidal and larvicidal activity suggesting its important contribution to the overall toxicity of the two essential oils. Thus, garlic and asafoetida essential oils are potent mosquito ovicides and larvicides but if used jointly, they could undermine vector control programs.

Titel:	Ovicidal and Larvicidal Effects of Garlic and Asafoetida Essential Oils Against West Nile Virus Vectors.
Autor/in / Beteiligte Person:	Muturi, EJ ; Ramirez, JL ; Zilkowski, B ; Flor-Weiler, LB ; Rooney, AP
Zeitschrift:	Journal of insect science (Online), Jg. 18 (2018-03-01), Heft 2
Veröffentlichung:	Annapolis, MD : Entomological Society of America ; <i>Original Publication</i>: Tucson, Ariz. : University of Arizona Library, [2001?-, 2018
Medientyp:	academicJournal
ISSN:	1536-2442 (electronic)
DOI:	10.1093/jisesa/iey036
Schlagwort:	Animals Larva Mosquito Vectors Ovum West Nile virus Allium chemistry Culex Ferula chemistry Insecticides analysis Oils, Volatile chemistry
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Evaluation Study; Journal Article Language: English [J Insect Sci] 2018 Mar 01; Vol. 18 (2). MeSH Terms: Culex* ; Allium / chemistry ; Ferula / chemistry ; Insecticides / analysis ; Oils, Volatile / chemistry ; Animals ; Larva ; Mosquito Vectors ; Ovum ; West Nile virus References: J Am Mosq Control Assoc. 2003 Mar;19(1):39-46. (PMID: 12674533) ; J Agric Food Chem. 2005 Jun 1;53(11):4388-92. (PMID: 15913300) ; Interdiscip Toxicol. 2009 Mar;2(1):1-12. (PMID: 21217838) ; Acta Trop. 2015 Dec;152:195-200. (PMID: 26403337) ; Parasitol Res. 2007 Mar;100(4):729-37. (PMID: 17096143) ; J Vector Ecol. 2017 Jun;42(1):148-154. (PMID: 28504453) ; J Invertebr Pathol. 2014 Jun;119:50-3. (PMID: 24768915) ; Parasitol Int. 2017 Apr;66(2):166-171. (PMID: 28110082) ; J Med Entomol. 2005 Jul;42(4):643-6. (PMID: 16119554) ; Parasitol Res. 2011 Oct;109(4):1125-31. (PMID: 21445613) ; Acta Trop. 2007 Mar;101(3):207-16. (PMID: 17359927) ; Malar J. 2011 Mar 15;10 Suppl 1:S11. (PMID: 21411012) ; Parasitol Res. 2006 Nov;99(6):715-21. (PMID: 16738885) ; Pharmacogn Rev. 2012 Jul;6(12):141-6. (PMID: 23055640) ; J Med Entomol. 2001 May;38(3):446-50. (PMID: 11372972) ; J Econ Entomol. 2000 Apr;93(2):537-43. (PMID: 10826211) ; Med Vet Entomol. 2011 Sep;25(3):233-9. (PMID: 21501201) ; Emerg Infect Dis. 1998 Oct-Dec;4(4):605-13. (PMID: 9866736) ; Parasitol Res. 2006 Sep;99(4):478-90. (PMID: 16642384) ; Parasitol Res. 2015 Oct;114(10):3835-53. (PMID: 26149532) ; Southeast Asian J Trop Med Public Health. 2006 Sep;37(5):915-31. (PMID: 17333734) ; J Med Entomol. 2017 Nov 7;54(6):1684-1691. (PMID: 29029151) ; Pest Manag Sci. 2009 Mar;65(3):249-54. (PMID: 19097026) ; Annu Rev Entomol. 2006;51:45-66. (PMID: 16332203) ; J Am Mosq Control Assoc. 1986 Jun;2(2):219-21. (PMID: 3507494) ; Res Vet Sci. 2016 Feb;104:77-82. (PMID: 26850541) ; Am J Trop Med Hyg. 1995 Jul;53(1):105-9. (PMID: 7625528) ; Parasitol Res. 2014 Feb;113(2):565-92. (PMID: 24265058) ; Parasitol Res. 2006 Sep;99(4):466-72. (PMID: 16642386) ; J Econ Entomol. 1970 Aug;63(4):1172-5. (PMID: 5488786) ; Indian J Exp Biol. 2004 Dec;42(12):1216-9. (PMID: 15623234) ; Parasitol Res. 2010 Jul;107(2):327-35. (PMID: 20405142) ; J Econ Entomol. 2013 Jun;106(3):1349-54. (PMID: 23865201) ; J Tradit Complement Med. 2016 Dec 20;7(3):347-359. (PMID: 28725631) ; Asian Pac J Trop Biomed. 2014 Jan;4(1):30-4. (PMID: 24144127) ; Parasit Vectors. 2013 Sep 25;6:280. (PMID: 24294938) Substance Nomenclature: 0 (Insecticides) ; 0 (Oils, Volatile) Entry Date(s): Date Created: 20180503 Date Completed: 20180706 Latest Revision: 20191210 Update Code: 20240513 PubMed Central ID: PMC5905380

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Ovicidal and Larvicidal Effects of Garlic and Asafoetida Essential Oils Against West Nile Virus Vectors.