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Int. J. Biol. Chem. Sci., Vol.4(6): 2220-2236. Biopesticide activity of crude extracts and fractions of Calotropis procera Ait. towards the groundnut seed-beetle Caryedon serratus Ol. (Coleoptera, Bruchidae) Cheikh THIAW 1 and Mbacké SEMBENE 2* / Cheikh Thiaw
Int. J. Biol. Chem. Sci., Vol.4(6): 2220-2236. Biopesticide activity of crude extracts and fractions of Calotropis procera Ait. towards the groundnut seed-beetle Caryedon serratus Ol. (Coleoptera, Bruchidae) Cheikh THIAW 1 and Mbacké SEMBENE 2* [texte imprimé] / Cheikh Thiaw, Auteur ; Mbacké Sembène, Auteur . - Original Paper . - [S.l.] : International Formulae Group, 2010 . - pp.2220-2236.
ISSN : ISSN 1991-8631
http://www.ajol.info/index.php/ijbcs, http://indexmedicus.afro.who.int
Langues : Anglais (eng)
Catégories : PROTECTION DES PRODUITS ENTREPOSES Mots-clés : Caryedon serratus, groundnut, Calotropis procera, Plantes Biocides, extraction, ether, methanol,
hexane, ethyl acetate.Index. décimale : H800 Résumé : In preparation for designing a strategy of integrated management associated with post-harvest products
in Senegal, the bioactivity of crude and extracts of Calotropis procera Ait. on the survival of eggs and adults
Caryedon serratus (Ol.) pest of groundnut, Arachis hypogaea L., was studied under controlled conditions. The
crude extracts (ether and methanol) and fractions of extract (hexane, ethyl acetate and methanol) were applied
through contact with C. serratus at different concentrations C1 (0.1 g of dry residue / ml of solvent dilution),
C2 (0.01 g/ml) and C 3 (0.001 g/ml). The action of each biocid extract of C. procera on the survival of treated is
dependent on the concentration and varies with the polarity of the extract. All concentrations induce high
mortality of C. serratus eggs and adults regardless of the sample in use. The most important (86.14 ± 4.21%)
adulticidal action was noted in 10 days of treatment with the methanol fraction. The adulticidal effect of crude
methanol extract on C. serratus was in the range of 74.10 ± 2.82%. The biological activity of extracts of C.
procera on the insect is also expressed by an imbalance of sex-ratio in favor of males, an extension or a
reduction in the duration of the phases of development, reduced fecundity and fertility limited. The fecundity
averages, less important, were obtained with the hexane fraction (44.83 ± 3.01 eggs) and high concentrations of
ethyl acetate fraction (35 ± 0.71 eggs) or a respective rate of reduction of spawning 52.93% and 63.25%
compared to the control. After characterization of reactions, it is clear from this study that the bioactivity of
extracts of C. procera is likely related to suspected active compounds (alkaloids, flavonoids, tannins,
anthracene derivatives, saponins, sterols and terpenes) as revealed from staining or precipitation using specific
reagents.
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Code-barres Cote Support Localisation Section Disponibilité CN15O2979 H800 THI Article scientifique CNRA/Bambey Rayons Exclu du prêt Documents numériques
Cliquer pour pdfURL International Journal of Science and Advanced Technology, Volume 2 No 3. Farmers' pesticidal plant use in the protection of stored cereal and legume grains: ethnobotanical surveys in some rural communities in Senegal / A L Toumnou
International Journal of Science and Advanced Technology, Volume 2 No 3. Farmers' pesticidal plant use in the protection of stored cereal and legume grains: ethnobotanical surveys in some rural communities in Senegal [texte imprimé] / A L Toumnou, Auteur ; Cheikh Thiaw, Auteur ; Dogo Seck, Auteur . - 2012 . - pp.25-33 : fig., graph.
ISSN : ISSN 2221-8386
http://www.ijsat.com
Langues : Anglais (eng)
Catégories : PROTECTION DES PRODUITS ENTREPOSES Mots-clés : Contrôle, Denrées Stockées,Insecte Nuisible, Gestion, Plantes Indigènes Index. décimale : H800 Résumé : Abstract— Food security and poverty alleviation has remained the primary agenda in the Western Africa regional food policies, and Senegal is no exception. Field pests that attack crops are among the greatest threat to increased food production. The subsistence farmers in the rural communities in Senegal rarely use synthetic pesticides in the field due to the high cost and availability issues. Therefore, some rely on the use of botanical pesticides and other natural methods of pest control. Ethnobotanical surveys were conducted using semi-structured questionnaires and participatory interviews with 184 farmers. The anti-pest plants documented included 35 species in 21 families. A factorial correspondence analysis of the data (grains and plants species) allowed the identification of two groups of plants species and stored products. The plants were divided into 21 families (Combretaceae, Annonaceae, Fabaceae, Pedaliaceae, Burseraceae, Caesalpiniaceae, Capparaceae, Anacardiaceae, Euphorbiaceae, Poaceae, Labiatae, Meliaceae, Araliaceae, Apocynaceae, Acanthaceae, Asteraceae, Celastraceae, Solanaceae, Vitaceae, Piperaceae and Mimosaceae) where the Cesalpiniaceae and Meliaceae were widely used. The plant parts mostly used were the leaves and fruit. This collection of plants specified in the fight against the stored product pests can be a database for advanced studies (bioassay and phytochemical analysis).
Control, stored grains, pests’ management, indigenous plants
Exemplaires
Code-barres Cote Support Localisation Section Disponibilité CN15O2980 H800 TOU Article scientifique CNRA/Bambey Rayons Exclu du prêt Documents numériques
Cliquer pour pdfURL Journal of Cell and Animal Biology, Vol. 6(13),. Haplotype diversity of Tribolium castaneum H. (Coleotera, Tenebrionidae) pest of stored millet in Senegal / Toffene Diome
Journal of Cell and Animal Biology, Vol. 6(13),. Haplotype diversity of Tribolium castaneum H. (Coleotera, Tenebrionidae) pest of stored millet in Senegal [texte imprimé] / Toffene Diome, Auteur ; Cheikh Thiaw, Auteur ; Assane Ndong, Auteur . - Full Length Research Paper . - [S.l.] : Academic Journals, 2012 . - pp. 192-199 : tabl., graph., fig.
ISSN : ISSN 1996-0867
DOI: 10.5897/JCAB12.037
Langues : Anglais (eng)
Catégories : PROTECTION DES PRODUITS ENTREPOSES Mots-clés : Tribolium castaneum, zone Agroécologique, Haplotype, Diversité Génétique. Index. décimale : H800-DIO Résumé : In Senegal, millet occupies the most important place among the cereal crops. This cereal stocks are attacked by the Coleoptera, usch as Tribolium castaneum. This beetle attacks grains and causes significant losses on stocks of beaten millet in the Sahelian zone. The objective of this study is to genetically characterize the populations of T. castaneum encountered in different agroecological zones to identify the different haplotypes circulating in Senegal. The results showed that there are at least 12 haplotypes of T. castaneum in Senegal. High haplotype diversity in the northern groundnut basin and high nucleotide diversity in the south of the groundnut basin were also noted. The cereal in the market of Sandiara was the cause of the wealth of haplotype and nucleotide diversity in the north of the groundnut basin. The high haplotype diversity and the low nucleotide diversity in the basin centered in eastern Senegal, high Casamance may be the result of rapid population growth from an ancestral population at low numbers. There was no significant genetic differentiation between agroecological zones. The strong genetic differentiation of some individuals with multiple mutations not in the haplotype network was due to a structure based on the host plant. Exemplaires
Code-barres Cote Support Localisation Section Disponibilité CN15O2984 H800- DIO Article scientifique CNRA/Bambey Rayons Exclu du prêt Documents numériques
Cliquer pour pdfURL South Asian Journal of Experimental Biology, Vol. 2, Issue 3. Capacity of biodemographic developpment of Tribolium castaneum Herbst (Coleoptera, Tenebrionidae) and Sitophilus zeamais Motschulsky (Coleoptera, Curculionidae) in stored cereals in Senegal A. C. Guèye1, 3*, T. Diome1, 3, C. Thiaw2, A. Ndong1, 3, A. Ndiaye Gueye1, M. Sembène1, 3 / Gueye A. C.
South Asian Journal of Experimental Biology, Vol. 2, Issue 3. Capacity of biodemographic developpment of Tribolium castaneum Herbst (Coleoptera, Tenebrionidae) and Sitophilus zeamais Motschulsky (Coleoptera, Curculionidae) in stored cereals in Senegal A. C. Guèye1, 3*, T. Diome1, 3, C. Thiaw2, A. Ndong1, 3, A. Ndiaye Gueye1, M. Sembène1, 3 [texte imprimé] / Gueye A. C., Auteur ; Toffene Diome, Auteur ; Cheikh Thiaw, Auteur . - REGULAR ARTICLE . - 2012 . - pp. 108-117 : tabl., graph., fig.
http://www.sajeb.org
Langues : Anglais (eng)
Catégories : PROTECTION DES PRODUITS ENTREPOSES Mots-clés : Sécurité Alimentaire, Sitophilus
Maïs, Tribolium castaneum, Céréale, Perte, StockageIndex. décimale : H800 Résumé : To contribute to food security and reduce poverty among Senegaleses’populations
through a strategy of integrated management of insect pests of cereal
crops, experiments were conducted on corn and millet (in the grain form
and flour form) to track development of T. castaneum and S. zeamais after
infestations controlled. The mean duration of development of S. zeamais
was 35.33 days in the kernels of corn. Its development was more favorable in
corn stored in the form of grain but the grain was more resistant to Sitophilus
after processing into flour. Millet was found to be more protected against
attacks by S. zeamais. The average duration of development of T. castaneum
was shorter in the grains of millet than in corn. The transformation of these
grains into flour influenced the development of T. castaneum which was
accelerated in the corn flour and slowed in the millet. The nature of the food
affected the weight of T. castaneum when several grains were made availableExemplaires
Code-barres Cote Support Localisation Section Disponibilité CN15O2981 GUE Article scientifique CNRA/Bambey Rayons Exclu du prêt Documents numériques
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