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12941

Insecticidal potential of the bioagent radiant sc 12% against stored rice weevil, Sitophilus oryzae L. (Curculionidae: coleoptera)

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Last updated: 03 Jan 2025

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Abstract

  The bioagent, Radiant SC12% (Spinetoram) is a commercial reduced-risk pesticide that is naturally derived. Efficacy of five concentrations (1.8, 0.93, 0.46, 0.23 and 0.11ppm) of spinosad against adults of the rice weevil, Sitophilus oryzae was studied under laboratory conditions. Data obtained demonstrated that the highest concentration of the bio-agent Radiant SC 12% (1.87 and 0.93 ppm) achieved the highest mortality percent of adults (55 and 31 %, respectively) after 4 days of treatment and 100 mortality percent for both two concentrations after 6 and 8 days of treatment. Antioxidant defense components protect insects by scavenging reactive oxygen species, leading to oxidative stress. The present study also investigated the effects of Radiant SC 12%, on the oxidative stress indicator, and antioxidant enzymes [superoxide dismutase (SOD) and catalase (CAT)] activities in Sitophilus oryzae tissues. The use of the bio- agent lead to statistically significant increases in SOD and CAT activities after 48h of application as compared to untreated Sitophilus oryzae. These results indicated that Radiant causes a significant increase in oxidative stress, that increasing oxidative stress induces antioxidant defense mechanisms, which lead to mortality action.

DOI

10.21608/eajbsa.2018.12941

Keywords

Rice weevil, Sitophilus oryzae, Radiant SC 12%, bio-insecticides, SOD, CAT

Authors

First Name

Rania

Last Name

Rashwan

MiddleName

S.

Affiliation

Plant protection Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt

Email

raniarashwan@ymail.com

City

-

Orcid

-

First Name

Amal

Last Name

Al-Barty

MiddleName

M. F.

Affiliation

Biological science Department, Faculty of Science, Taif University, Taif, El-Hawyeia 888, Saudi Arabia.

Email

-

City

-

Orcid

-

First Name

Reham

Last Name

Hamza

MiddleName

Z.

Affiliation

Zoology Department, Faculty of Science, Zagazig University, Zagazig, Egypt

Email

-

City

-

Orcid

-

Volume

7

Article Issue

2

Related Issue

2450

Issue Date

2014-12-01

Receive Date

2014-06-17

Publish Date

2014-12-01

Page Start

29

Page End

37

Print ISSN

1687-8809

Online ISSN

2090-0813

Article File

EAJBSA_Volume 7_Issue 2_Pages 29-37.pdf

PDF . 575.3kB

Link

https://eajbsa.journals.ekb.eg/article_12941.html

Detail API

https://eajbsa.journals.ekb.eg/service?article_code=12941

Order

4

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

Insecticidal potential of the bioagent radiant sc 12% against stored rice weevil, Sitophilus oryzae L. (Curculionidae: coleoptera)

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Type

Article

Created At

22 Jan 2023