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MAHGOUB, S. (1995). EFFECT OF NEEM LEAF EXTRACTS AND POWDERS AGAINST THE COWPEA WEEVIL, CALLOSOBRUCHUS MACULATUS (F.) (COLEOPTERA, BRUCHIDAE). Egyptian Journal of Agricultural Research, 73(4), 1001-1008. doi: 10.21608/ejar.1995.442897
SANAA M. MAHGOUB. "EFFECT OF NEEM LEAF EXTRACTS AND POWDERS AGAINST THE COWPEA WEEVIL, CALLOSOBRUCHUS MACULATUS (F.) (COLEOPTERA, BRUCHIDAE)". Egyptian Journal of Agricultural Research, 73, 4, 1995, 1001-1008. doi: 10.21608/ejar.1995.442897
MAHGOUB, S. (1995). 'EFFECT OF NEEM LEAF EXTRACTS AND POWDERS AGAINST THE COWPEA WEEVIL, CALLOSOBRUCHUS MACULATUS (F.) (COLEOPTERA, BRUCHIDAE)', Egyptian Journal of Agricultural Research, 73(4), pp. 1001-1008. doi: 10.21608/ejar.1995.442897
MAHGOUB, S. EFFECT OF NEEM LEAF EXTRACTS AND POWDERS AGAINST THE COWPEA WEEVIL, CALLOSOBRUCHUS MACULATUS (F.) (COLEOPTERA, BRUCHIDAE). Egyptian Journal of Agricultural Research, 1995; 73(4): 1001-1008. doi: 10.21608/ejar.1995.442897

EFFECT OF NEEM LEAF EXTRACTS AND POWDERS AGAINST THE COWPEA WEEVIL, CALLOSOBRUCHUS MACULATUS (F.) (COLEOPTERA, BRUCHIDAE)

Article 36, Volume 73, Issue 4, December 1995, Page 1001-1008  XML PDF (2.04 MB)
Document Type: Original Article
DOI: 10.21608/ejar.1995.442897
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Author
SANAA M. MAHGOUB
Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt.
Abstract
The effect of neem leaf extracts and powder was tested on Calla‌sobruchus rnaculatus (F.) adults. Results revealed that chloroform ex‌tract gave 88.3% mortality at 1.0% concenration and after three days of exposure, while the aqueous extract marked the lowest percentage of mortality (51.9%). In case of neem leaf poweder, the highest concentra‌tion (3%) gave 100% mortality at the same period. The effect of the organic solvent extracts and powder on the bi‌ological aspects and fecundity of C.maculatus was also studied. Extracts and powder highly decreased the number of deposited eggs per female. Tested extracts prevented the emergence of adults. The effect of tested materials on the germination of seeds was also studied. Germination of the treated seeds remained almost equal to that of the control even after 120 days of storage. The protection dusts failed to give the same protection after 4 months.
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