University of Khartoum

Response of Trogoderma granarium (Everts) and Tribolium castaneum (Herbs) to Extracts and Powders from Neemleaflets at Different Developmental Stages

Response of Trogoderma granarium (Everts) and Tribolium castaneum (Herbs) to Extracts and Powders from Neemleaflets at Different Developmental Stages

Show full item record

Title: Response of Trogoderma granarium (Everts) and Tribolium castaneum (Herbs) to Extracts and Powders from Neemleaflets at Different Developmental Stages
Author: Baleela, R. M. H.
Abstract: Hazards encountered by the application of chemical insecticides on crops, lead to the use of bioinsecticides as substitutes, particularly those of neem seeds. However the scarcity of neem seeds during the growing season showed up as a problem restricting the use of neem in crop protection. In the present work neem leaflets which are less potent than seeds, but available throughout the year were studied at different developmental stages with the assumption that one of the developmental stages could provide efficacy comparable to the seeds. These stages were young leaflets of young leaves, old leaflets of young leaves, young leaflets of old leaves and old leaflets of old leaves. Aqueous extracts and powders of these leaflets stages were tested against two serious store pests, namely Trogoderma granarium Everts and Tribolium castaneum Herbs infesting wheat grains. Results showed no significant difference between neem seed powder and water extract from one side (Standard treatment) and water extract and powder of old leaflets from young leaves on the other side in most counts made. This result confirmed the assumption above and met the objectives of this research work.
URI: http://hdl.handle.net/123456789/218
Date: 1999


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