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Evaluation of indigenous plants' extracts for mosquitocidal activity against different stages of Culex quinquefasciatus say (Diptera: Culicidae) / Avaliação de extratos de plantas indígenas quanto à atividade mosquitocida contra diferentes estágios de culex quinquefasciatus say (Diptera: Culicidae)
Hussain, A; Ilahi, I; Ahmed, H; Niaz, S; Masood, Z; Khan, T; Khan, A; Zając, Z; Alkhaibari, A M; Alanazi, A D.
  • Hussain, A; Shaheed Benazir Bhutto University. Department of Zoology. Sheringal. PK
  • Ilahi, I; University of Malakand. Department of Zoology. Chakdara. PK
  • Ahmed, H; Shaheed Benazir Bhutto University. Department of Zoology. Sheringal. PK
  • Niaz, S; Abdul Wali Khan University. Department of Zoology. Khyber Pakhtunkhwa. PK
  • Masood, Z; Sardar Bahadur Khan Womans University. Department of Zoology. Quetta. PK
  • Khan, T; Abdul Wali Khan University. Department of Zoology. Khyber Pakhtunkhwa. PK
  • Khan, A; Bacha Khan University Charsadda. Department of Zoology. Khyber. PK
  • Zając, Z; Medical University of Lublin. Department of Biology and Parasitology. Radziwillowska. PL
  • Alkhaibari, A M; University of Tabuk. Faculty of Science. Department of Biology. Tabuk. SA
  • Alanazi, A D; Shaqra University. Faculty of Science and Humanities. Department of Biological Sciences. Ad-Dawadimi. SA
Braz. j. biol ; 83: e248122, 2023. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1355851
ABSTRACT
Abstract Being vector of West Nile Virus and falariasis the control of Culex quinquefasciatus is likely to be essential. Synthetic insecticide treatment is looking most effective for vectors mosquito control. However, these products are toxic to the environment and non-target organisms. Consequently, ecofriendly control of vectors mosquito is needed. In this regard botanical insecticide is looking more fruitful. Therefore, the present research aimed to investigate the effectiveness of methanolic extract and various fractions, including, n-hexane, ethyl-acetate, chloroform, and aqueous fraction, obtained from methanolic extract of Ailanthus altissima, Artemisia scoparia, and Justicia adhatoda using separating funnel against larval, pupal, and adult stages of Culex quinquefasciatus. The larvae and pupae of Culex quinquefasciatus were exposed to various concentrations (31.25-1000 ppm) of methanolic extract and its fractions for 24 hours of exposure period. For knock-down bioassay (filter paper impregnation bioassay) different concentration of the methanolic extract and its various fractions (i.e. 0.0625, 0.125, 0.25, 0.5 and 1mg/mL) were applied for 1 hour exposure period. The results were statistically analysed using standard deviation, probit analysis, and linear regression. The R2 values of larvae, pupae, and adult range from 0.4 to 0.99. The values of LC50 (concentration causing 50% mortality) for late 3rd instar larvae after 24 hours exposure period range from 93-1856.7 ppm, while LC90 values range from 424 -7635.5ppm. The values of LC50for pupae range form 1326.7-6818.4ppm and and values of LC90 range from 3667.3-17427.9ppm, respectively. The KDT50 range from 0.30 to 2.8% and KDT90 values range from1.2 to 110.8%, respectively. In conclusion, Justicia adhatoda may be effective for controlling populations of vector mosquito.
RESUMO
Resumo Por ser o vetor do vírus do Nilo Ocidental e da falaríase, o controle de Culex quinquefasciatus Say é provavelmente essencial. O tratamento com inseticida sintético parece ser mais eficaz para o controle dos mosquitos vetores. No entanto, esses produtos são tóxicos para o meio ambiente e organismos não visados. Consequentemente, o controle ecológico dos mosquitos vetores é necessário. Nesse sentido, o inseticida botânico parece mais produtivo. Portanto, a presente pesquisa teve como objetivo investigar a eficácia do extrato metanólico e de várias frações, incluindo n-hexano, acetato de etila, clorofórmio e fração aquosa, obtidos do extrato metanólico de Ailanthus altissima (Mill.) Swingle, Artemisia scoparia Waldst. & Kit. e Justicia adhatoda L. usando funil de separação contra os estágios larval, pupal e adulto de C. quinquefasciatus. As larvas e pupas de C. quinquefasciatus foram expostas a várias concentrações (31,25-1000 ppm) de extrato metanólico, e suas frações por 24 horas de período de exposição. Para o bioensaio knock-down (bioensaio de impregnação de papel de filtro), diferentes concentrações do extrato metanólico e suas várias frações (ou seja, 0,0625, 0,125, 0,25, 0,5 e 1 mg / mL) foram aplicadas por um período de exposição de 1 hora. Os resultados foram analisados ​​estatisticamente usando desvio padrão, análise Probit e regressão linear. Os valores de R2 de larvas, pupas e adultos variaram de 0,4 a 0,99. Os valores de LC50 (concentração que causa 50% de mortalidade) para larvas de terceiro estádio tardio após 24 horas de período de exposição variaram de 93-1856,7 ppm, enquanto os valores de LC90 variaram de 424-7635,5ppm. Os valores de LC50 para pupas variaram de 1326,7-6818,4 ppm e os valores de LC90 variaram de 3667,3-17427,9 ppm, respectivamente. O KDT50 variou de 0,30 a 2,8% e os valores de KDT90 variaram de 1,2 a 110,8%, respectivamente. Por fim, a espécie J. adhatoda pôde ser eficaz para controlar populações de mosquitos vetores.
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Full text: Available Index: LILACS (Americas) Main subject: Culex / Insecticides / Anopheles Limits: Animals Language: English Journal: Braz. j. biol Year: 2023 Type: Article Institution/Affiliation country: Abdul Wali Khan University/PK / Bacha Khan University Charsadda/PK / Medical University of Lublin/PL / Sardar Bahadur Khan Womans University/PK / Shaheed Benazir Bhutto University/PK / Shaqra University/SA / University of Malakand/PK / University of Tabuk/SA

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Full text: Available Index: LILACS (Americas) Main subject: Culex / Insecticides / Anopheles Limits: Animals Language: English Journal: Braz. j. biol Year: 2023 Type: Article Institution/Affiliation country: Abdul Wali Khan University/PK / Bacha Khan University Charsadda/PK / Medical University of Lublin/PL / Sardar Bahadur Khan Womans University/PK / Shaheed Benazir Bhutto University/PK / Shaqra University/SA / University of Malakand/PK / University of Tabuk/SA