title: Mediation of oviposition responses in the malaria mosquito Anopheles stephensi Liston by certain fatty acid esters.
abstract: The chemical factors involved in oviposition site selection by mosquitoes have become the focus of interest in recent years, and considerable attention is paid to the chemical cues influencing mosquito oviposition. Studies on synthetic oviposition attractants/repellents of long-chain fatty acid esters against Anopheles stephensi are limited. Screening and identification of chemicals which potentially attract/repel the gravid females to/or from oviposition site could be exploited for eco-friendly mosquito management strategies. The ester compounds demonstrated their ability to repel and attract the gravid A. stephensi females in the treated substrates. Significant level of concentration-dependent negative oviposition response of mosquitoes to octadecyl propanoate, heptadecyl butanoate, hexadecyl pentanoate, and tetradecyl heptanoate were observed. In contrast, decyl undecanoate, nonyl dodecanoate, pentyl hexadecanoate, and propyl octadecanoate elicited concentration-dependent positive oviposition responses from the gravid mosquitoes. Forcing a female to retain her eggs due to unavailability of a suitable oviposition site and attracting them to lay the eggs in a baited ovitraps shall ensure effective control of mosquito breeding and population buildup because the oviposition bioassay target the most susceptible stage of an insect life cycle. Treating relatively smaller natural breeding sites with an effective repellent and placing ovitraps containing an attractant in combination with insect-growth regulator (IGR)/insecticide would be a promising method of mosquito management.
authors.affiliation: Defence Research & Development Establishment, Jhansi Road, Gwalior 474 002, India.
authors.forename: Kavita R
authors.initials: KR
authors.lastname: Sharma
authors.forename: T
authors.initials: T
authors.lastname: Seenivasagan
authors.forename: A N
authors.initials: AN
authors.lastname: Rao
authors.forename: K
authors.initials: K
authors.lastname: Ganesan
authors.forename: O P
authors.initials: OP
authors.lastname: Agrawal
authors.forename: Shri
authors.initials: S
authors.lastname: Prakash
mesh_terms: D000818:Animals; D000852:Anopheles / Q000187:drug effects*; D002630:Chemotactic Factors / Q000494:pharmacology*; D005227:Fatty Acids / Q000494:pharmacology*; D005260:Female; D007302:Insect Repellents / Q000494:pharmacology*; D009032:Mosquito Control / Q000379:methods; D010058:Oviposition / Q000187:drug effects*
chemical_list: D002630:Chemotactic Factors; D005227:Fatty Acids; D007302:Insect Repellents
references.citation: J Chem Ecol. 1994 Feb;20(2):281-91
references.pmid: 24242053
references.citation: Ciba Found Symp. 1996;200:109-19; discussion 119-23, 178-83
references.pmid: 8894293
references.citation: Annu Rev Entomol. 1997;42:123-46
references.pmid: 15012310
references.citation: Malar J. 2005 May 13;4:23
references.pmid: 15892886
references.citation: Ann Trop Med Parasitol. 1984 Jun;78(3):307-18
references.pmid: 6486937
references.citation: J Med Entomol. 2006 May;43(3):498-504
references.pmid: 16739407
references.citation: N Engl J Med. 2002 Jul 4;347(1):13-8
references.pmid: 12097535
references.citation: Parasitol Res. 2008 Oct;103(5):1065-73
references.pmid: 18661154
references.citation: Annu Rev Entomol. 1995;40:195-219
references.pmid: 7810986
references.citation: J Chem Ecol. 2002 Apr;28(4):797-806
references.pmid: 12035927
references.citation: J Med Entomol. 1999 Mar;36(2):158-66
references.pmid: 10083752
references.citation: J Med Entomol. 1982 Oct 14;19(5):589-92
references.pmid: 7143381
references.citation: J Med Chem. 1973 Mar;16(3):248-51
references.pmid: 4733106
references.citation: Ann Trop Med Parasitol. 2000 Jun;94(4):389-98
references.pmid: 10945049
references.citation: J Med Entomol. 1998 Nov;35(6):943-7
references.pmid: 9835684
references.citation: Environ Entomol. 1996 Oct;25(5):1058-67
references.pmid: 11540613
references.citation: Z Naturforsch C Biosci. 1975 Mar-Apr;30(2):283-93
references.pmid: 125976
references.citation: J Am Mosq Control Assoc. 1992 Mar;8(1):11-7
references.pmid: 1583482
references.citation: Proc Natl Acad Sci U S A. 2006 Nov 14;103(46):17560-3
references.pmid: 17085587
references.citation: Med Vet Entomol. 2005 Dec;19(4):442-50
references.pmid: 16336309
references.citation: J Med Entomol. 1998 Nov;35(6):967-76
references.pmid: 9835688
references.citation: Biochem J. 2001 Oct 15;359(Pt 2):295-304
references.pmid: 11583575
references.citation: Med Vet Entomol. 1999 Feb;13(1):2-23
references.pmid: 10194745