Effect of aqueous extract of Vicia faba peels on the mortality of immature stages and the inhibition of emergence of Culex quinquefasciatus (Diptera: Culicidae) mosquitoes

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Sarah Kadhim Al-Rahimy, Alaa Sajjad AlKhafagi, Balqees Hadi Al- Musawi, Rafid Abbas Al-Essa, Iqbal Khawwam Khshayyish

Abstract

The effectiveness of the aqueous extract (cold and boiled) of bean peels was studied and the active compounds were determined by Foureir Transform Infrared Spectrophotometer (FT-IR), and concentrations (1, 3, 5) mg/ml were used when treating fourth-instar larvae and the pupae of Cx. quinquefasciatus mosquitoes and its effect on the percentage of the mortality of the fourth larval instar , the pupa stage and the inhibition of emergence of adults when treating the fourth larval instarĀ  and pupa stage of the insect in Kerbala governorate for the month of March 2022 to control mosquitoes. The results of the study showed the effect of the two extracts was approximate to a large percent to a certain extent in the percentage of cumulative mortality of immature stages, as for the inhibition of the emergence of adults, the cold extract was more effective than the boiled extract of bean peels, and it was found that the cold extract of bean peels was more effective from the boiled extract and the effect differed according to the different concentrations of the extract when treating the fourth larval instar, and the effect on the pupae treated with the boiled extract was more compared to the cold extract of the bean peels.

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