| Titre : |
Panicle insects pests of sorghum in west africa |
| Type de document : |
texte imprimé |
| Auteurs : |
A. Ratnadass, Auteur ; O. Ajayi, Auteur |
| Année de publication : |
1999 |
| Importance : |
p 29-38 |
| Langues : |
Anglais (eng) |
| Catégories : |
SCIENCES AGRICOLES
|
| Mots-clés : |
AFRIQUE DE L'OUEST INSECTE PANICULAIRE RAVAGEUR DE SORGHO |
| Résumé : |
Although several panicle-feeding insect pests are associated with sorghum, only a few are considered to be major pests in West Africa. The sorghum midge Contarinia sorghicola and a complex of mirid head bugs (eurystylus immaculatus) have recently become key pests. Other minor or occasional insects pest species include a range of head caterpillars and head beetles.
Both sorghum midge and head bugs are sometimes more abundant on research stations than in farmers’ fields but the midge is an endemic and persistent constraint at some locations. Head bugs and head caterpillars are mostly associated with compact-headed improved caudatum types and the local guinea cultivars are generally free from damage.
Methods of controlling sorghum midge include destruction of infested panicles, early and synchronized sowing, use of resistant cultivars and chemical protection, while head bug control involves the use of resistant cultivars, appropriate cultural practices and insecticides.
|
| Numéro du document : |
A 96000/H00 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
PROTECTION DES VEGETAUX |
| Bull2 (Theme secondaire) : |
RAVAGEURS DES PLANTES |
Panicle insects pests of sorghum in west africa [texte imprimé] / A. Ratnadass, Auteur ; O. Ajayi, Auteur . - 1999 . - p 29-38. Langues : Anglais ( eng)
| Catégories : |
SCIENCES AGRICOLES
|
| Mots-clés : |
AFRIQUE DE L'OUEST INSECTE PANICULAIRE RAVAGEUR DE SORGHO |
| Résumé : |
Although several panicle-feeding insect pests are associated with sorghum, only a few are considered to be major pests in West Africa. The sorghum midge Contarinia sorghicola and a complex of mirid head bugs (eurystylus immaculatus) have recently become key pests. Other minor or occasional insects pest species include a range of head caterpillars and head beetles.
Both sorghum midge and head bugs are sometimes more abundant on research stations than in farmers’ fields but the midge is an endemic and persistent constraint at some locations. Head bugs and head caterpillars are mostly associated with compact-headed improved caudatum types and the local guinea cultivars are generally free from damage.
Methods of controlling sorghum midge include destruction of infested panicles, early and synchronized sowing, use of resistant cultivars and chemical protection, while head bug control involves the use of resistant cultivars, appropriate cultural practices and insecticides.
|
| Numéro du document : |
A 96000/H00 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
PROTECTION DES VEGETAUX |
| Bull2 (Theme secondaire) : |
RAVAGEURS DES PLANTES |
|
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