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156533

Variation in Oral Acute Toxicity of Thiamethoxam According to the Volume Administered in Algerian Honeybees

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Last updated: 24 Dec 2024

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Abstract

Thiamethoxam is a neurotoxic systemic insecticide belonging to the neonicotinoid family. Approved under the trade Algeria Actara WG 25%, the plant protection product is recognized as toxic to the bees after acute exposure. However, this product is persistent, has a significant residual activity and accumulates in plants. It is therefore necessary to completely reassess its toxicity. To do this, we determined the sensitivity of the Saharan and Tellian honeybee, Apis mellifera sahariensis and Apis mellifera intermissa, to thiamethoxam by testing the acute oral toxicity on worker bees in the laboratory. The study is based on determining the LD50 according to the volume administrated. Each batch of bees was fed 100, 200, 500 and 1000μl (5, 10, 25 and 50μl per bee) 55,5% (w/v) sucrose solution with increasing doses (1, 10, 20, 50, 70 and 90 ng per bee) of thiamethoxam dissolved in acetone, for trial treatments, and 55,5% (w/v) sucrose solution supplemented with acetone, control treatments. The results showed that the toxicity is manifested by acute symptoms of early neurotoxicity and cumulative mortalities that occur 24 hours after treatment. The LD50 varies with the volume administered. Indeed, the LD50 values decrease with increasing volume, and there is an inverse relationship between the LD50 obtained and administered volumes.

DOI

10.21608/eajbsa.2021.156533

Keywords

thiamethoxam, Apis mellifera intermissa, Apis mellifera sahariensis, LD50, Acute oral toxicity

Authors

First Name

Chahbar

Last Name

Nora

MiddleName

Adidou

Affiliation

Laboratoire VALCOR, Faculté des sciences, Departement d'agronomie Université M’hamed Bougara Boumerdes, 35 000 Avenue de l’indépendance, Boumerdes , Algeria.

Email

chahbar_nora@yahoo.fr

City

Algiers

Orcid

-

First Name

Kamel,

Last Name

Hamadi

MiddleName

-

Affiliation

Laboratoire Dynamique et Biodiversité, Faculté des Sciences Biologiques, Université des Sciences et de la Technologie Houari Boumediene, Alger, Algérie

Email

-

City

-

Orcid

-

First Name

Mohamed,

Last Name

Chahbar

MiddleName

-

Affiliation

Département de Zoologie Agricole et Forestière, École Nationale Supérieure Agronomique, Alger, Algérie

Email

-

City

-

Orcid

-

First Name

Messaouda,

Last Name

Belaid

MiddleName

-

Affiliation

Laboratoire VALCOR, Faculté des Sciences, Département d'agronomie, Université M'hamed Bougara, Boumerdes, 35 000 Avenue de l'indépendance, Boumerdes, Algérie

Email

-

City

-

Orcid

-

First Name

Fatma,

Last Name

Acheuk

MiddleName

-

Affiliation

Laboratoire VALCOR, Faculté des Sciences, Département d'agronomie, Université M'hamed Bougara, Boumerdes, 35 000 Avenue de l'indépendance, Boumerdes, Algérie

Email

-

City

-

Orcid

-

First Name

Salaheddine,

Last Name

Doumandji

MiddleName

-

Affiliation

Département de Zoologie Agricole et Forestière, École Nationale Supérieure Agronomique, Alger, Algérie

Email

-

City

-

Orcid

-

Volume

14

Article Issue

1

Related Issue

20388

Issue Date

2021-03-01

Receive Date

2021-02-08

Publish Date

2021-03-15

Page Start

123

Page End

131

Print ISSN

1687-8809

Online ISSN

2090-0813

Article File

EAJBSA_Volume 14_Issue 1_Pages 123-131.pdf

PDF . 809.2kB

Link

https://eajbsa.journals.ekb.eg/article_156533.html

Detail API

https://eajbsa.journals.ekb.eg/service?article_code=156533

Order

12

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

Variation in Oral Acute Toxicity of Thiamethoxam According to the Volume Administered in Algerian Honeybees

Details

Type

Article

Created At

22 Jan 2023