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Titre du document / Document title

Blend effects in the toxicity of the essential oil constituents of Ocimum kilimandscharicum and Ocimum kenyense (Labiateae) on two post-harvest insect pests

Auteur(s) / Author(s)

BEKELE Jembere (1) ; HASSANALI Ahmed (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) International Centre of Insect Physiology and Ecology (ICIPE), PO Box 30772, Nairobi, KENYA

Résumé / Abstract

The lethal toxicity of major components of the essential oils of Ocimum kilimandscharicum and O. kenyense and of selected blends of these against Sitophilus zeamais and Rhyzopertha dominica were compared with those of the full blends of the essential oils. The compounds were assayed in amounts and proportions present in the minimum 100% lethal dose of the oils. Whereas a major component of O. kilimandscharicum was found to be largely responsible for the toxic action of its essential oil against R. dominica, the results with the other treatments indicated that the toxic action of the essential oils were due to the combined effects of different components, either with or without significant individual toxic action of their own against the insects. The significance of the results and their implication in screening and using plants and their phytochemicals for pest and microbial control are highlighted.

Revue / Journal Title

Phytochemistry    ISSN  0031-9422 

Source / Source

2001, vol. 57, no3, pp. 385-391 (29 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Amsterdam, PAYS-BAS  (1961) (Revue)

Mots-clés anglais / English Keywords

Toxicity

;

Essential oil

;

Synergism

;

Screening

;

Biological activity

;

Insecticide

;

Bioassay

;

Sitophilus zeamais

;

Rhyzopertha dominica

;

Pesticides

;

Curculionidae

;

Coleoptera

;

Insecta

;

Arthropoda

;

Invertebrata

;

Bostrychidae

;

Pest

;

Labiatae

;

Dicotyledones

;

Angiospermae

;

Spermatophyta

;

Mots-clés français / French Keywords

Toxicité

;

Huile essentielle

;

Synergie

;

Criblage

;

Activité biologique

;

Insecticide

;

Essai biologique

;

Sitophilus zeamais

;

Rhyzopertha dominica

;

Ocimum kilimandscharicum

;

Ocimum kenyense

;

Pesticide

;

Curculionidae

;

Coleoptera

;

Insecta

;

Arthropoda

;

Invertebrata

;

Bostrychidae

;

Déprédateur

;

Labiatae

;

Dicotyledones

;

Angiospermae

;

Spermatophyta

;

Mots-clés espagnols / Spanish Keywords

Toxicidad

;

Aceite esencial

;

Sinergia

;

Cernido

;

Actividad biológica

;

Insecticida

;

Prueba biológica

;

Sitophilus zeamais

;

Rhyzopertha dominica

;

Plaguicida

;

Curculionidae

;

Coleoptera

;

Insecta

;

Arthropoda

;

Invertebrata

;

Bostrychidae

;

Plaga

;

Labiatae

;

Dicotyledones

;

Angiospermae

;

Spermatophyta

;

Localisation / Location

INIST-CNRS, Cote INIST : 9408, 35400009537532.0090

Nº notice refdoc (ud4) : 975772



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