University of Khartoum

Laboratory Trials For Chemical And Biological Control Of The Mosquitoes Anopheles Arabiensis And Culex Quinquefasciatus (Diptera: Culicidae

Laboratory Trials For Chemical And Biological Control Of The Mosquitoes Anopheles Arabiensis And Culex Quinquefasciatus (Diptera: Culicidae

Show full item record

Title: Laboratory Trials For Chemical And Biological Control Of The Mosquitoes Anopheles Arabiensis And Culex Quinquefasciatus (Diptera: Culicidae
Author: Abdel Rahman, Ishraga Mohammed
Abstract: This study was conducted to test two different methods to control mosquitoes in the laboratory. Chemically, four insecticides were used, and biologically pathogenic bacteria were tested. Blood fed females of Anopheles arabiensis were used to determine the susceptibility of four insecticides, namely Fenitrothion, Malathion, Deltamethrin and DDT. The results showed that Anopheles arabiensis was susceptible to the first three and resistant to DDT. Bacteria were isolated from Anopheles arabiensis 3rd and 4th larval instars. Nine endospore forming gram-positive Bacilli were isolated, characterized and their insecticidal activities against Anopheles arabiensis and Culex quinquefasciatus were studied. Only one of the tested bacilli was found to be active against 2nd instar larvae of both Anopheles arabiensis and Culex quinquefasciatus. Standard B. thuringiensis sub-species moazami H-14 was also tested against the two species of mosquitoes and was found to be effective against both of them. The effect of sunlight on the insecticidal activities, of bacterial suspensions was studied using standard B. thuringiensis sub species moazami, against all larval stages of Culex quinquefasciatus. Sunlight reduced the insecticidal activity of the bacterial suspensions. i.e The activities of the suspensions decreased due to exposure to sunlight
Description: 97page
URI: http://khartoumspace.uofk.edu/handle/123456789/13462
Date: 2015-06-17


Files in this item

Files Size Format View

This item appears in the following Collection(s)

Show full item record

Share

Search DSpace


Browse

My Account