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Adulticidal, larvicidal, pupicidal and oviposition deterrent activities of essential oil from Zanthoxylum limonella Alston (Rutaceae) against Aedes aegypti (L.) and Culex quinquefasciatus (Say)
Asian Pacific Journal of Tropical Biomedicine ; (12): 967-978, 2017.
Article in Chinese | WPRIM | ID: wpr-664277
ABSTRACT

Objective:

To evaluate adulticidal,larvicidal and oviposition deterrent response of the essential oil from dried Zanthoxylum limonella (Z.limonella) fruit against Aedes aegypti (Ae.aegypti) and Culex quinquefasciatus (Cx.quinquefasciatus).

Methods:

Z.limonella oil was tested by biological assays at 1%,5% and 10% concentrations in ethanol.Adulticidal efficacy was tested against the 2-3 day old adult females.Larvicidal activity was tested against immature stage of mosquitoes.Oviposition deterrence of the oil was evaluated on gravid females.

Results:

The adult mortality was observed after 24 h with the LC5o of 6.0% for Ae.aegypti,and 5.7% for Cx.quinquefasciatus.Larvicidal bioassay was carried out with the 10% Z.limonella oil against immature stages of Ae.aegypti and Cx.quinquefasciatus,which caused 100% mortality after 12 h and 24 h.In the larvicidal experiment,Z.limonella showed effective result at 1%,5% and 10% concentrations with the values of LT5o Ae.aegypti =9.78,5.61,0.24 h for larvae and LT5o =64.08,21.23 h for pupae;Cx.quinquefasciatus had LT50 =28.46,20.25,1.01 h for larvae and LT50 =67.52,27.96,4.11 h for pupae,respectively.Oviposition deterrence of the oil was evaluated on gravid females.In the study,10% Z.limonella showed 100% repellency for Ae.aegypti and 99.53% for Cx.quinquefasciatus.Likewise,oviposition activity indexes of these oil concentrations were all negative values ranging from-0.89 to-1.00 for Ae.aegypti and-0.64 to-0.99 for Cx.quinquefasciatus.The oviposition activity indexes values revealed that Z.limonella oil has deterrent effect,and it caused a remarkable negative response resulting in very few eggs.

Conclusions:

This result indicates that Z.limonella oil can be used as an effective adulticide,larvicide and oviposition deterrent against Ae.aegypti and Cx.quinquefasciatus.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Asian Pacific Journal of Tropical Biomedicine Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Asian Pacific Journal of Tropical Biomedicine Year: 2017 Type: Article