Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro

BACKGROUND AND OBJECTIVE: Insects are the cause of excessive spread of parasites and pathogens. Insect population control faces the challenges of increasing resistance to chemical pesticides and the environmental hazards posed by them. Therefore, the use of natural insecticides is important. The aim...

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Autores principales:	A Esfandiari, MM Homayouni, MR Youssefi, MR Parvizi, M Karami
Formato:	article
Lenguaje:	EN FA
Publicado:	Babol University of Medical Sciences 2020
Materias:	geraniol β-citronellol culex insecticide. Medicine R Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/03517350193741398eb2cdc7795e1f0a
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spelling	oai:doaj.org-article:03517350193741398eb2cdc7795e1f0a2021-11-09T10:15:55ZEvaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro1561-41072251-7170https://doaj.org/article/03517350193741398eb2cdc7795e1f0a2020-03-01T00:00:00Zhttp://jbums.org/article-1-8830-en.htmlhttps://doaj.org/toc/1561-4107https://doaj.org/toc/2251-7170BACKGROUND AND OBJECTIVE: Insects are the cause of excessive spread of parasites and pathogens. Insect population control faces the challenges of increasing resistance to chemical pesticides and the environmental hazards posed by them. Therefore, the use of natural insecticides is important. The aim of this study was to investigate the synergistic effect of geraniol and betacitronellol on the larvae of Culex Pippins complex. METHODS: In this cross-sectional study, samples were taken from the Insectarium of Babol University of Medical Sciences. Yield of geraniol, betacitronellol and their combination in ratios of 4:1, 3:2, 2:3 and 1:4 in a total of 6 groups on the larvae of the third stage of the mosquito culex Pippins complex at concentrations of 0.5, 1, 2, 5, 10 and 20 μg/ml were evaluated with 5 replications. Needle test was used to determine whether the larvae were dead or alive. The LC50 of each group was then recorded after 24 hours. FINDINGS: The highest mortality of larvae belonged to the geraniol group with LC50 equal to 48.1 µg/ml. While betacitronellol with LC50 equal to 49.10 µg/ml had the lowest toxic dose. Among the four combined ratios of geraniol-betacitronellol, the highest toxicity was related to the ratio of 1:4 and the lowest toxicity was related to the ratio of 4:1 with LC50 of 3.32 and 7.71 µg/ml, respectively, and antagonistic effect was observed in all ratios (p<0.05). CONCLUSION: The results of the present study showed the antagonistic effects of the combination of geraniol with betacitronellol on mosquito larvae of Culex Pippins complex.A EsfandiariMM HomayouniMR YoussefiMR ParviziM KaramiBabol University of Medical Sciencesarticlegeraniolβ-citronellolculexinsecticide.MedicineRMedicine (General)R5-920ENFAMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, Vol 22, Iss 1, Pp 341-347 (2020)
institution	DOAJ
collection	DOAJ
language	EN FA
topic	geraniol β-citronellol culex insecticide. Medicine R Medicine (General) R5-920
spellingShingle	geraniol β-citronellol culex insecticide. Medicine R Medicine (General) R5-920 A Esfandiari MM Homayouni MR Youssefi MR Parvizi M Karami Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro
description	BACKGROUND AND OBJECTIVE: Insects are the cause of excessive spread of parasites and pathogens. Insect population control faces the challenges of increasing resistance to chemical pesticides and the environmental hazards posed by them. Therefore, the use of natural insecticides is important. The aim of this study was to investigate the synergistic effect of geraniol and betacitronellol on the larvae of Culex Pippins complex. METHODS: In this cross-sectional study, samples were taken from the Insectarium of Babol University of Medical Sciences. Yield of geraniol, betacitronellol and their combination in ratios of 4:1, 3:2, 2:3 and 1:4 in a total of 6 groups on the larvae of the third stage of the mosquito culex Pippins complex at concentrations of 0.5, 1, 2, 5, 10 and 20 μg/ml were evaluated with 5 replications. Needle test was used to determine whether the larvae were dead or alive. The LC50 of each group was then recorded after 24 hours. FINDINGS: The highest mortality of larvae belonged to the geraniol group with LC50 equal to 48.1 µg/ml. While betacitronellol with LC50 equal to 49.10 µg/ml had the lowest toxic dose. Among the four combined ratios of geraniol-betacitronellol, the highest toxicity was related to the ratio of 1:4 and the lowest toxicity was related to the ratio of 4:1 with LC50 of 3.32 and 7.71 µg/ml, respectively, and antagonistic effect was observed in all ratios (p<0.05). CONCLUSION: The results of the present study showed the antagonistic effects of the combination of geraniol with betacitronellol on mosquito larvae of Culex Pippins complex.
format	article
author	A Esfandiari MM Homayouni MR Youssefi MR Parvizi M Karami
author_facet	A Esfandiari MM Homayouni MR Youssefi MR Parvizi M Karami
author_sort	A Esfandiari
title	Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro
title_short	Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro
title_full	Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro
title_fullStr	Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro
title_full_unstemmed	Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro
title_sort	evaluation of synergistic effects of two monoterpenoids of geraniol and β-citronellol on culex larvae in vitro
publisher	Babol University of Medical Sciences
publishDate	2020
url	https://doaj.org/article/03517350193741398eb2cdc7795e1f0a
work_keys_str_mv	AT aesfandiari evaluationofsynergisticeffectsoftwomonoterpenoidsofgeraniolandbcitronellolonculexlarvaeinvitro AT mmhomayouni evaluationofsynergisticeffectsoftwomonoterpenoidsofgeraniolandbcitronellolonculexlarvaeinvitro AT mryoussefi evaluationofsynergisticeffectsoftwomonoterpenoidsofgeraniolandbcitronellolonculexlarvaeinvitro AT mrparvizi evaluationofsynergisticeffectsoftwomonoterpenoidsofgeraniolandbcitronellolonculexlarvaeinvitro AT mkarami evaluationofsynergisticeffectsoftwomonoterpenoidsofgeraniolandbcitronellolonculexlarvaeinvitro
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Evaluation of Synergistic Effects of Two Monoterpenoids of Geraniol and Β-Citronellol on Culex Larvae in Vitro

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