2024, Vol. 5, Issue 2, Part C
The potency evaluation of the essential oil gotten from the plant, Tagetes erecta, against Culex quinquefasciatus and Anopheles gambiae
Author(s): Ekeoma P Nnanna-Chigozie, Peace Mayen E Ubulom, Laura O Oriaku, Ebele L Iloanya, Talatu Adamu, Idongesit A Umohata and Nnamso W Ikpeida
Abstract: In recent times, filariasis and malaria which are vectored by Culex and Anopheles species respectively, remain a scourge and public health menace in Nigeria, in spite of concerted effort by health sector to reduce disease burden through treatment, campaigns, and vector control. Recently, research has shifted towards the development of insecticide against mosquito vectors from bioactive compounds of plant origin. This study aimed at determining the potency of the extracts, essential oil, gotten from Tagetes erecta leaves on two mosquito species, Culex quinquefasciatus and Anopheles gambiae. Using WHO test procedures, the mosquitocidal activities of Tagetes erecta were assessed. The samples that were observed to be susceptible to the essential oil with complete mortality of 100%, were exposed to different concentrations, including 62.5 µl/ml, 250 µl/ml, and 125 µl/ml, while samples exposed to 15.63 µl/ml and 31.25 µl/ml concentrations, reported resistance to the essential oil, after a period of 60 minutes. However, the difference in variation of susceptibility and resistance between these two species of mosquitoes was statistically insignificant (P= 0.8792; two-tailed t = 3.182, df = 3). The mosquitocidal potency was gotten for both species LC50 values with to be 10.26 µl/ml for An. gambiae and 10.42 µl/ml for Cx. quinquefasciatus, with the LC95 values as 31.73 µl/ml for both An. gambie and Cx. quinquefasciatus mosquito species. It was therefore concluded that the essential oil gotten from Tagetes erecta, showed marginally lesser activity on Culex quinquefasciatus compared to Anopheles gambiae. Summary Statement: This study presents an alternative to synthetic insecticides through Tagetes erecta essential oil as an eco-friendly insecticide, offering valuable data on mosquito mortality and resistance for sustainable vector control strategies.
DOI: 10.33545/27080013.2024.v5.i2c.168
Pages: 180-184 | Views: 56 | Downloads:
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How to cite this article:
Ekeoma P Nnanna-Chigozie, Peace Mayen E Ubulom, Laura O Oriaku, Ebele L Iloanya, Talatu Adamu, Idongesit A Umohata, Nnamso W Ikpeida. The potency evaluation of the essential oil gotten from the plant, Tagetes erecta, against Culex quinquefasciatus and Anopheles gambiae. Acta Entomol Zool 2024;5(2):180-184. DOI: 10.33545/27080013.2024.v5.i2c.168
