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Delayed Effects of Some Plant Extracts on Some Biological Aspects of Culex quinquefasciatus (Diptera: Culicidae)

Article

Last updated: 01 Jan 2025

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Tags

Economic entomology

Abstract

The present study was conducted to evaluate  the effects of LC50 concentrations of ethanolic plant extracts, Artemisia herba alba (Compositae), Matricharia chamomilla(Compositae), and Melia azedarach(Meliacae), which were 1.807, 0.505, and 1.035 mg/L, respectively (after 24 h exposure), on  the 3rd larval instar of Culex quinquefasciatus (Say). Delaying effect of the LC50 were followed up on the life cycle of the insect. The results showed that the concentration used led to a prolongation of the 3rd  larval stage as: 23.20± 1.009 and 23.10±1.006 days for each treated group of A. herba alba and M. chamomilla, respectively, while those  treated with M. azedarach complate larval stage after 26.3 ± 1.004 days, the untreated larvae  10.78±0.25 days ,and affected proportions entering the pupal stage and developing to pupal stage 20% and 26.6% compared to the control ( 86.49%). It had an impact on female longevity, where females lived longer than males, as well as on sex ratios, with more males than females. These results clearly demonstrate the effectiveness of these extracts to influence the life cycle of this insect. Plant extracts apparrentally acted as a growth regulation and suppressed the develping of  the Cx.quinquefasciatus thereby impeding the natural growth of the insect and reducing its damage.

DOI

10.21608/asejaiqjsae.2010.2313

Keywords

delayed effect, plant extract, Culex quinquefasciatus, larval control

Authors

First Name

Al-khalaf ,

Last Name

A.A

MiddleName

-

Affiliation

King Abdul-Aziz University, P.O.Box 19516, Jeddah, 21445 Saudi Arabia.

Email

aj_khalaf@yahoo.com

City

-

Orcid

-

First Name

Al-mehmadi,

Last Name

R .M

MiddleName

-

Affiliation

King Abdul-Aziz University, P.O.Box 19516, Jeddah, 21445 Saudi Arabia.

Email

d_almehmadi@yahoo.com

City

-

Orcid

-

Volume

31

Article Issue

JULY- SEPTEMBER

Related Issue

434

Issue Date

2010-06-01

Receive Date

2017-07-10

Publish Date

2010-09-30

Page Start

209

Page End

214

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 31_Issue JULY- SEPTEMBER_Pages 209-214.pdf

PDF . 566.5kB

Link

https://asejaiqjsae.journals.ekb.eg/article_2313.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=2313

Order

2

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Delayed Effects of Some Plant Extracts on Some Biological Aspects of Culex quinquefasciatus (Diptera: Culicidae)

Details

Type

Article

Created At

22 Jan 2023