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28877

Virulence of Some Selected Fungal Isolates against the Cotton Leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae)

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Last updated: 22 Jan 2023

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Abstract

The present study was carried out to investigate the virulence of two fungal isolates against cotton leafworm Spodoptera littoralis. Six fungal isolates were isolated from a soil sample. Only two isolates were identified as Cunninghamella sp. and Rhizopus sp < /em>. according to the data of preliminary test where they cause higher mortalities. The highest mortality was recorded by isolate Rhizopus sp < /em>. In addition, the same isolate recorded the lowest LC50 values, 2.16x107 conidial concentration/ml. The fungal isolates exhibited an insignificant decrease in the weight of treated larvae. Larval duration was decreased insignificantly at all conidial concentration except the highest conidial concentration that insignificantly increased it. Pupation and adult emergence % were affected. Adult deformities were appeared only bythe isolate, Cunninghamella sp.. However, the isolate Rhizopus sp < /em>. exhibited the highest proteolytic and lipolytic activity than isolate Cunninghamella sp. while the highest chitinolytic activity was recorded by the isolate Cunninghamella sp < /em>

DOI

10.21608/eajbsg.2018.28877

Keywords

fungi, Cotton leafworm, hydrolytic enzymes

Authors

First Name

Hamadah

Last Name

Kh.

MiddleName

-

Affiliation

Al-Azhar University, Faculty of Science, Zoology and Entomology Department, Cairo, Egypt, Madinat Nasr

Email

khalid_hamadah@azhar.edu.eg

City

-

Orcid

-

First Name

Zahran

Last Name

M.

MiddleName

-

Affiliation

Al-Azhar University, Faculty of Science (Girls), Botany and Microbiology Department, Cairo, Egypt, Madinat Nasr

Email

-

City

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Orcid

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First Name

El-Hosainy

Last Name

A.

MiddleName

-

Affiliation

Al-Azhar University, Faculty of Science (Girls), Botany and Microbiology Department, Cairo, Egypt, Madinat Nasr

Email

-

City

-

Orcid

-

Volume

10

Article Issue

2

Related Issue

4307

Issue Date

2018-12-01

Receive Date

2018-08-25

Publish Date

2018-12-01

Page Start

25

Page End

35

Print ISSN

2090-0872

Online ISSN

2090-0880

Article File

EAJBSG_Volume 10_Issue 2_Pages 25-35.pdf

PDF . 991.8kB

Link

https://eajbsg.journals.ekb.eg/article_28877.html

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https://eajbsg.journals.ekb.eg/service?article_code=28877

Order

4

Type

Original Article

Type Code

689

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences, G. Microbiology

Publication Link

https://eajbsg.journals.ekb.eg/

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Article

Created At

22 Jan 2023