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217235

THERMAL REQUIRMENTS, BIOLOGICAL AND LIFE TABLE PARAMETERS OF Exochomus nigromaculatus (GOEZE) (Coleoptera: Coccinellidae) REARED ON THREE APHID SPECIES.

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Last updated: 04 Jan 2025

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Abstract

  Developmental time and rate of immature stages, growth index, survival percentage, longevity, fecundity, and life table parameters of Exochomus nigromaculatus (Goeze) when reared on Aphis gossypii, Aphis craccivora, and Myzus persicae were studied at three constant temperatures (20, 24, and 28oC). The relationship between developmental rate of each stage and tested temperatures was also regressed. There were significant variations in total developmental time of immature stages of the predator (male and female) among the three tested temperatures when the predators reared on the three studied preys.Meanwhile, there were no significant variations among the three aphid species at the same temperature. Growth index and developmental rate of E. nigromaculatus male were higher at 28oC than 20 and 24oC when reared on the tested aphid species. Survival percentage of immature stages when reared at 24 and 28oC was higher (100%) on M. persicae than on A. gossypii and A. crccivora (90%).  Exochomus nigromaculatus male and femalerequired 263.16 DD to complete their development from egg to adult male when reared on when it was reared on A. gossypii, A. craccivora, and M. persicae. There were no significant differences in pre-ovipositional period among the three tested temperatures. In addition, there were significant variations between inter-oviposition, oviposition, and total longevity when the predator was reared at the three tested temperatures. Male longevity was significantly shorter at 28oC than at 20oC and 24oC which fed on the same prey. Fecundity rate was significantly higher at 28oC than at 20oC and 24oC, when fed on the same prey. The mean generation time (T) and doubling time (DT) were shorter at 28oC than at 20oC and 24oC when fed on the same prey at 28oC. Generally, the value of gross reproductive rate (GRR), the net reproduction rate (Ro), the intrinsic rate of increase (rm), the finite rate of increase (λ) were higher at 28oC than at 20oC and 24oC.

DOI

10.21608/jppp.2009.217235

Keywords

Exochomus nigromaculatus, thermal requirements, biological characteristic, life table, Aphis gossypii, Aphis craccivora, Myzus persicae

Authors

First Name

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Last Name

Abdel - Salam,

MiddleName

H.

Affiliation

Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, EGYPT

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Orcid

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First Name

A.

Last Name

Ghanim

MiddleName

A.

Affiliation

Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, EGYPT

Email

abdelbadieghanim@gmail.com

City

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Orcid

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First Name

Hala

Last Name

El – Serafi

MiddleName

A. K.

Affiliation

Economic Entomology Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, EGYPT

Email

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City

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Orcid

-

First Name

A.

Last Name

El-Heneidy

MiddleName

H.

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Ministry of Agriculture, Giza, Egypt.

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City

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Orcid

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First Name

Mervat

Last Name

El-Sherbeni

MiddleName

K.

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Ministry of Agriculture, Giza, Egypt.

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Volume

34

Article Issue

7

Related Issue

30899

Issue Date

2009-07-01

Receive Date

2009-06-13

Publish Date

2009-07-01

Page Start

8,263

Page End

8,282

Print ISSN

2090-3677

Online ISSN

2090-3758

Link

https://jppp.journals.ekb.eg/article_217235.html

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https://jppp.journals.ekb.eg/service?article_code=217235

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10

Type

Original Article

Type Code

888

Publication Type

Journal

Publication Title

Journal of Plant Protection and Pathology

Publication Link

https://jppp.journals.ekb.eg/

MainTitle

THERMAL REQUIRMENTS, BIOLOGICAL AND LIFE TABLE PARAMETERS OF Exochomus nigromaculatus (GOEZE) (Coleoptera: Coccinellidae) REARED ON THREE APHID SPECIES.

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Article

Created At

22 Jan 2023