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Journal of Entomology and Zoology Studies, Vol 6, n°1. Source of resistance in pearl millet varieties against stem borers and the ear headminer [texte imprimé] / M.F. Goudiaby, Auteur ; I Sarr, Auteur ; Mbacké Sembène, Auteur . - [s.d.] . - 7 p. (1702-1708). Langues : Anglais ( eng) Catégories : | PROTECTION DES PLANTES ET DES PRODUITS ENTREPOSES
| Mots-clés : | Mil, Insecte ravageur des plante, Heliocheilus albipunctella, foreurs de tige, résistance de l'hôte | Index. décimale : | H110-Insectes nuisibles - Entomologie | Résumé : | The most damaging pearl millet insect pests in Senegal include ear headminer (Heliocheilus albipunctella) and the complex of stem borers Sesamia calamistis, Coniesta ignefusalis, Eldana saccharina and Busseola fusca. To reduce damage and loss from these pests, resistant varieties would be most cost effective for smallholder farmers. Evaluation using Gawane, ISMI9507, Thialack2 varieties, IBV8004 as the resistant check and Souna3 as the susceptible check from the Senegalese of Agricultural Research Institute (ISRA) was conducted under natural infestation in the 2014 and 2015 cropping seasons. The results showed a low stem borer incidence and damage on Thialack2 and Gawane compared to Souna3. Thialack2 recorded a high incidence and damage by H. albipunctella but gave higher yields than the other varieties. The damages due to H. albipunctella on ISMI9507and its grain yield were the lowest. It is suggested, Gawane contains a source of resistance to stem borers i.e. S. calamistis while Thialack2 also exhibited tolerance to H. albipunctella for which ISMI9507 would be resistance as well. |
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CN1800034 | H110-GOU | Publication | CNRA/Bambey | Rayons | Exclu du prêt |
Documents numériques
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Journal of Entomology and Zoology Studies, Vol 6, n°6. Occurrence of the sorghum midge (Stenodiplosis sorghicola, Diptera: Cecidomyiidae), development cycle and resistance of different sorghum lines in Senegal [texte imprimé] / Adia Néné Thiam, Auteur ; I Sarr, Auteur ; Saliou Ndiaye, Auteur ; Omar Kandji, Auteur ; Bonnie B. Pendleton, Auteur ; Gary C. Peterson, Auteur ; Ndiaga Cissé, Auteur . - [s.d.] . - pp. 442-448. Langues : Anglais ( eng) Catégories : | PROTECTION DES PLANTES ET DES PRODUITS ENTREPOSES
| Mots-clés : | Ravageur des plantes, sorgho, moucheron, cécidomyie | Index. décimale : | H100-Ravageurs desv plantes - Généralités | Résumé : | Sorghum grain is generally used as food, feed or in agri-food industries in Senegal. Despite this importance, the yield remains low with gaps of more than 1 t.ha-1 compared to potentials of registered varieties. Several sorghum production limiting factors included sorghum midge. To manage this pest and reduce damage, various management methods are used. This study aimed at determining the occurrence of the midge and the duration of sorghum development of tested lines in relation to their resistance. The experiments were done during the cropping seasons of 2016 and 2017 where sorghum midge are abundant at Roff on the western side of the Senegalese Groundnut Basin. Sorghum midges began emerging in October and peaked in mid-November. Time to 50% flowering varied from 56 to 75 days. Severity of damage by midge scored between 3 and 7 for all lines. Three lines were moderately resistant to sorghum midge. |
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CN1900020 | H100-THI | Article scientifique | CNRA/Bambey | Dépot numérique | Exclu du prêt |
Documents numériques
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