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126835

Activity of Otostegia fruticosa (Lamiaceae) Leaves Extracts Against Lymphatic Filariasis Vector, Culex pipiens L. (Diptera: Culicidae)

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Last updated: 03 Jan 2025

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Abstract

The present study was carried out to evaluate the activity of methanol, ethyl acetate, chlorobenzene, and hexane extract from leaves of Otostegia fruticosaas larvicidal and repellent agents against Culex pipiens. The effect of tested extracts on the female reproductive potential treated as larvae was also investigated. The obtained results showed that hexane extract have potent larvicidal activitywithLC50 and LC90 values equal to (126.27 and 236.84 ppm), respectively followed by chlorobenzene (242.14 and 501.17 ppm), ethyl acetate (578.07 and 856.29 ppm) and methanol (653.00 and 1127.10 ppm). All tested extracts of O. fruticosa induced significant (P<0.01) reduction in fecundity and increased the infertility percentages of C. pipiens females developed from treated larvae as compared with control and these effects were solvent- and concentration-dependent. In addition, the repellency effect of tested extracts was found to be varied among tested extracts. Four hours post-treatment, the dose of 3.33 mg/cm2 recorded repellency percentages of 64.13 and 75.09 by methanol and ethyl acetate extracts, respectively. Meanwhile, chlorobenzene extract induced repellency percentages of 80.15, 75.94, and 65.84 for the doses of 3.33, 1.67 and 0.83 mg/cm2, respectively. Moreover, repellent activity of hexane extract at doses of 3.33, 1.67 and 0.83 mg/cm2 recorded 88.08, 79.01 and 75.50%, respectively.

DOI

10.21608/eajbsa.2020.126835

Keywords

larvicidal activity, repellency, fecundity, Culex pipiens, Otostegia fruticosa

Authors

First Name

Mohamed

Last Name

Shahat

MiddleName

A.M.

Affiliation

Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.

Email

mohamedadly51@azhar.edu.eg

City

-

Orcid

-

First Name

Tarek

Last Name

El-Sheikh

MiddleName

M.Y.

Affiliation

Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.

Email

tarek_elshekh2000@yahoo.com

City

-

Orcid

-

First Name

Kotb

Last Name

Hammad

MiddleName

M.

Affiliation

Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.

Email

-

City

-

Orcid

-

First Name

Ahmed

Last Name

Hasaballah

MiddleName

I.

Affiliation

Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.

Email

ahscience09@azhar.edu.eg

City

-

Orcid

-

First Name

Ahmed

Last Name

Shehata

MiddleName

Z.I.

Affiliation

Department of Zoology and Entomology, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11651, Egypt.

Email

-

City

-

Orcid

-

Volume

13

Article Issue

4

Related Issue

17651

Issue Date

2020-12-01

Receive Date

2020-09-03

Publish Date

2020-12-01

Page Start

175

Page End

186

Print ISSN

1687-8809

Online ISSN

2090-0813

Article File

EAJBSA_Volume 13_Issue 4_Pages 175-186.pdf

PDF . 617.6kB

Link

https://eajbsa.journals.ekb.eg/article_126835.html

Detail API

https://eajbsa.journals.ekb.eg/service?article_code=126835

Order

17

Type

Original Article

Type Code

667

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences. A, Entomology

Publication Link

https://eajbsa.journals.ekb.eg/

MainTitle

Activity of Otostegia fruticosa (Lamiaceae) Leaves Extracts Against Lymphatic Filariasis Vector, Culex pipiens L. (Diptera: Culicidae)

Details

Type

Article

Created At

22 Jan 2023