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Effect of Three Plant Extracts on Egg Hatchability and Larval Development of Culex pipiens L.

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Last updated: 22 Jan 2023

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Abstract

The activity of methanolic plant extracts from Rhazya stricta Cleome paradoxa and Heliotrobium bacciferum has been investigated towards larval mortality and development of Culex pipiens L. Plant extracts exhibited variable biological activity. The greatest activity was observed for R stricta which showed LC 50s of 154.2 and 84.2 ppm, respectively after 2 and 10 days of exposure. Percentage of larval mortality was 95.33% in the treatment with extracts of R stricta and 84.8% in C. paradoxa. Egg hatchability was significantly reduced in R stricta concentrations. All concentrations of the plant extracts from R stricta, C. paradoxa (200 ppm and above) and H. bacciferum (400ppm and above) caused significantly high hindrance to the subsequent larval development and reduced both pupation and adult emergence. Drastic retardation of development was shown by R stricta extracts, where only 19.3% and 9 % of the larval managed to reach pupal and adult stages, respectively, when reared in very low concentration (100 ppm) of the extract. However, C.paradoxa and H. bacciferum were more effective at higher concentrations. Application of such plant extracts to mosquito breeding sites may have great practical importance in relation to non-synthetic chemical control of these serious disease vectors.

DOI

10.21608/asejaiqjsae.2011.1939

Authors

First Name

Ahmed

Last Name

A. Bakhashwain

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Affiliation

King AbduAziz University, Faculty of Metrology, Environment and Arid Land Agriculture, Jeddah, Saudi Arabia

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First Name

Ahmed

Last Name

A. Zaitoun

MiddleName

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Affiliation

King AbduAziz University, Faculty of Metrology, Environment and Arid Land Agriculture, Jeddah, Saudi Arabia

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Volume

32

Article Issue

JANUARY- MARCH

Related Issue

407

Issue Date

2011-03-01

Receive Date

2010-11-13

Publish Date

2011-03-30

Page Start

10

Page End

15

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 32_Issue JANUARY- MARCH_Pages 10-15.pdf

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https://asejaiqjsae.journals.ekb.eg/article_1939.html

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https://asejaiqjsae.journals.ekb.eg/service?article_code=1939

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Original Article

Type Code

53

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Journal

Publication Title

Alexandria Science Exchange Journal

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

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Article

Created At

22 Jan 2023