International Journal of Science and Advanced Technology, Volume 2 No 8. First investigation of different Crateava religiosa Forst formulations on the cowpea (Vigna unguiculata Walp.) seed-beetle, Callosobruchus maculatus Fabricius. : Pesticide effect of Crataeva religiosa on Callosobruchus maculatus [texte imprimé] / Faye, Ablaye, Auteur ; Cheikh Thiaw, Auteur ; A Gueye Ndiaye, Auteur . - 2012 . - pp.56-65 : tabl., graph.
ISSN : ISSN 2221-8386
http://www.ijsat.com
Langues : Anglais (eng)

Catégories :	PROTECTION DES PLANTES ET DES PRODUITS ENTREPOSES
Mots-clés :	Callosobruchus maculatus, Vigna unguiculata, Crataeva religiosa, ovicidal, adulticidal, contact, fumigation, water extract.
Index. décimale :	H800-PROTECTION DES PRODUITS ENTREPOSES
Résumé :	Callosobruchus maculatus (Fabricius) is the most dangerous ravager of stocked cowpea. A laboratory study aims at essessing the biocides capacities of C. religiosa (Capparidaceae) in the other side of C. maculatus. Three formulations of leaves-based of this plant have been used. The contact of grinded leaves of C. religiosa with the adults leads to a death rate of 100% at the twelfth hour with dose of 0.0218g/cm3. This same dose has a biocide effect that can be compared to the first on with 90% of mortality for eggs of this insect and provohes then a very important reduction of adult sprouting from seeds. Fumigation tests reveal some adulticide effects (100%) and ovicide (86.49%) very interesting with the dose of 0.02912g/cm3. The watery extact of leaves powder is applied on the two sonts of adults of C. maculatus and on the eggs. Some ovicide effects of 57.7% have been registered with the concentration 0.1g/cm3 of watery extact. This same concentration fosters some mortality of 100% at the seventh and ninth day respectively for adults of long-fligtht shape and the adults of normal shape. The molecules responsable for the adulticide effects and ovicide effects have not been identified.