Moyal Pascal. (1995). Borer infestation and damage in relation to maize stand density and water stress in the Ivory Coast. International Journal of Pest Management, 41 (2), p. 114-121. ISSN 0967-0874.
Titre du document
Borer infestation and damage in relation to maize stand density and water stress in the Ivory Coast
Année de publication
1995
Type de document
Article
Auteurs
Moyal Pascal
Source
International Journal of Pest Management, 1995,
41 (2), p. 114-121 ISSN 0967-0874
Borer infestations of maize crops grown at various planting densities were studied in the Ivory Coast. The number of larvae per stem for both stem borers, i.e. Busseola fusca (Feller) (Lepidoptera, Noctuidae) and Eldana saccharina Walker (Lepidoptera, Pyralidae), was similar at different densities of planting in rainy conditions but was higher in low density crops in water stress conditions. The number of larvae of the cob borer Mussidia nigrivenella Ragonot (Lepidoptera, Pyralidae) per plant did not vary with crop density. Crop losses caused by borers decreased when the stand density was reduced and increased when the crop was suffering from water stress. The interactions between the various yield components and the compensation mechanisms that occurred, which were depending on the attack patterns, were studied. (Résumé d'auteur)
Plan de classement
Symptomatologie / Dégâts [076RAVPLA03]
Descripteurs
INSECTE NUISIBLE ; INFESTATION ; DEGATS ; RENDEMENT ; DENSITE DE POPULATION ; ETUDE COMPARATIVE ; STRESS HYDRIQUE
