Beta
ManageSearchChatDiscover
197257

Threshold Temperatures and Thermal Requirements of Cotton Leafworm, Spodoptera littoralis Hb.

Article

Last updated: 03 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

-

Abstract

The present investigation aimed to study the effect of four constant temperatures (17, 22, 27 and 32°C) on the developmental rates of different stages of cotton leafworm, Spodoptera littoralis. The incubation period, larval duration, pupal duration, pre-oviposition period and duration of generation were estimated. The time required for development was decreased as the temperature increased. The threshold temperatures were 11.8°C for egg, 7.56 °C for larvae, 12.27 °C for pupae, 12.58°C for the pre-oviposition period, and 10.5 °C for a generation. The average thermal requirements needed for completing the development were 40.1, 283.76, 149.5, 23.96 and 480.6 degree-days for egg, larvae, pupae, pre-oviposition period and generation; respectively.

DOI

10.21608/eajbsa.2021.197257

Keywords

temperatures, leafworm, Spodoptera littoralis. thermal requirements

Authors

First Name

Eslam

Last Name

Allam

MiddleName

A. Y.

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt

Email

-

City

-

Orcid

-

First Name

Samer

Last Name

Manaa

MiddleName

H.

Affiliation

Plant Protection Department, Faculty of Agriculture, Assiut University, Assiut, Egypt

Email

-

City

-

Orcid

-

First Name

Hassan

Last Name

Dahi

MiddleName

F.

Affiliation

Plant Protection Research Institute, Agricult. Research Center, Dokki, Giza, Egypt

Email

hassandahi@yahoo.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Ahmed

MiddleName

M. M.

Affiliation

Plant Protection Department, Faculty of Agriculture, Assiut University, Assiut, Egypt

Email

-

City

-

Orcid

-

First Name

Yones,

Last Name

S.

MiddleName

M.

Affiliation

National authority for remote sensing and space science, cairo, Egypt

Email

-

City

-

Orcid

-

Volume

14

Article Issue

3

Related Issue

26413

Issue Date

2021-09-01

Receive Date

2021-08-15

Publish Date

2021-09-01

Page Start

103

Page End

113

Print ISSN

1687-8809

Online ISSN

2090-0813

Article File

EAJBSA_Volume 14_Issue 3_Pages 103-113.pdf

PDF . 930.1kB

Link

https://eajbsa.journals.ekb.eg/article_197257.html

Detail API

https://eajbsa.journals.ekb.eg/service?article_code=197257

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

Threshold Temperatures and Thermal Requirements of Cotton Leafworm, Spodoptera littoralis Hb.

Details

Type

Article

Created At

22 Jan 2023