ManageChatDiscover
18925

Effect of Some Environmental Factors on the Predation Efficiency of the Mosquito; Toxorhynchites splendens (Diptera: Culicidae)

Article

Last updated: 03 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

-

Abstract

The present work investigates the optimum conditions for the application of the predaceous mosquito, Toxorhynchites splendens as a biological control agent for other vector mosquito species in Egypt such as, Culex pipiens, Anopheles pharoensis and Aedes caspius under field conditions. The predation efficiency of T. splendens larvae was found to increase as the temperature increased. At 30-35؛C the predaceous larvae consumed greater numbers of both C. pipiens and Ae. Caspius than that of A. pharoensis. The predation of T. splen – dens occurred almost similarly in all degree of salinity. On the other hand, light was found to have little effect on Toxorhynchites larvae where predation efficiency was decreased in the dark. The crowding had no effect on the predation. Also no mortality or natural diseases were observed among the tested insect larvae during the experim ental period, whereas the insect preferred to live in highly concentrated population. Toxorhynchites splendens larvae could live in turbid and distilled water. The maximum number of prey larvae consumed by all instars of T. splendens was at PH (8) followed by (7) and (9). However, pH, below (6) and above 11 had a bad effect on the predaceous activity. The predation efficiency of T. splendens larvae increased gradually as the depth of water decreased .However captures of prey occurred either on the surface or at the bottom of the container.

DOI

10.21608/ejhm.2001.18925

Authors

First Name

Hanaa I.

Last Name

Mahmoud

MiddleName

-

Affiliation

Zoology Department, Faculty of Science (Girls), Al-Azhar University, Cairo, Egypt.

Email

-

City

-

Orcid

-

Volume

2

Article Issue

1

Related Issue

3895

Issue Date

2001-01-01

Receive Date

2018-11-13

Publish Date

2001-01-01

Page Start

70

Page End

83

Print ISSN

1687-2002

Online ISSN

2090-7125

Article File

EJHM_Volume 2_Issue 1_Pages 70-83.pdf

PDF . 405.3kB

Link

https://ejhm.journals.ekb.eg/article_18925.html

Detail API

https://ejhm.journals.ekb.eg/service?article_code=18925

Order

7

Type

Original Article

Type Code

606

Publication Type

Journal

Publication Title

The Egyptian Journal of Hospital Medicine

Publication Link

https://ejhm.journals.ekb.eg/

MainTitle

Effect of Some Environmental Factors on the Predation Efficiency of the Mosquito; Toxorhynchites splendens (Diptera: Culicidae)

Details

Type

Article

Created At

22 Jan 2023