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Titre du document / Document title

Evaluation of essential oils and their components for broad-spectrum antifungal activity and control of late leaf spot and crown rot diseases in peanut

Auteur(s) / Author(s)

KISHORE G. Krishna (1) ; PANDE S. (1) ; HARISH S. (2) ;

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

(1) Department of Pathology, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Andhra Pradesh, INDE
(2) Department of Microbiology, Osmania University, Hyderabad 500 007, INDE

Résumé / Abstract

Clove oil, cinnamon oil, and five essential oil components (citral, eugenol, geraniol, limonene, and linalool) were tested for growth inhibition of 14 phytopathogenic fungi. Citral completely inhibited the growth of Alternaria altemata, Aspergillus flavus, Curvularia lunata, Fusarium moniliforme, F. pallidoroseum, and Phoma sorghina in paper disc agar diffusion assays. Cinnamon oil, citral, and clove oil as low as 0.01% (vol/vol) inhibited the spore germination of Cercospora arachidicola, Phaeoisariopsis personata, and Puccinia arachidis by >90% in vitro. Limonene and linalool were observed to be the least antifungal against the test fungi and were not used in further studies. Clove oil (1% vol/vol) applied as a foliar spray 10 min before Phaeoisariopsis personata inoculation reduced the severity of late leaf spot of peanut up to 58% when challenge inoculated with 104 conidia ml-'. This treatment was more effective (P = 0.01) than 0.5% (vol/vol) citral, cinnamon oil, or clove oil and 1% (vol/vol) eugenol or geraniol. Seed treatment with the test compounds had no effect on the incidence of crown rot in peanut in Aspergillus niger-infested soil. However, soil amendment with 0.25% (vol/wt) clove oil and cinnamon oil reduced the preemergence rotting by 71 and 67% and postemergence wilting by 58 and 55%, respectively, compared with the nontreated control. These two treatments were more effective (P < 0.01) than geraniol on preemergence rotting, and more effective than citral, eugenol, and geraniol on postemergence wilting. All treatments significantly outperformed the nontreated control but none were as effective as thiram treatment.

Revue / Journal Title

Plant disease    ISSN  0191-2917   CODEN PLDIDE 

Source / Source

2007, vol. 91, no4, pp. 375-379 [5 page(s) (article)] (34 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Phytopathological Society, St. Paul, MN, ETATS-UNIS  (1980) (Revue)

Mots-clés anglais / English Keywords

Basidiomycetes

;

Carbamate

;

Pesticides

;

Fungicide

;

Attractant

;

Phenols

;

Oil plant (vegetal)

;

Fungi Imperfecti

;

Thallophyta

;

Spermatophyta

;

Angiospermae

;

Dicotyledones

;

Leguminosae

;

Epidemiology

;

Incidence

;

Treatment

;

Puccinia arachidis

;

Phaeoisariopsis personata

;

Cercospora arachidicola

;

Germination

;

Spores

;

Phoma sorghina

;

Fusarium moniliforme

;

Curvularia lunata

;

Plant pathogen

;

Eugenol

;

Antifungal agent

;

Activity spectrum

;

Aspergillus flavus

;

Alternaria

;

Fungi

;

Arachis hypogaea

;

Mots-clés français / French Keywords

Basidiomycetes

;

Carbamate

;

Pesticide

;

Fongicide

;

Attractif

;

Phénols

;

Plante oléagineuse

;

Fungi Imperfecti

;

Thallophyta

;

Spermatophyta

;

Angiospermae

;

Dicotyledones

;

Leguminosae

;

Epidémiologie

;

Incidence

;

Traitement

;

Puccinia arachidis

;

Phaeoisariopsis personata

;

Cercospora arachidicola

;

Germination

;

Spore

;

Phoma sorghina

;

Fusarium moniliforme

;

Curvularia lunata

;

Phytopathogène

;

Eugénol

;

Antifongique

;

Spectre activité

;

Aspergillus flavus

;

Alternaria

;

Fungi

;

Arachis hypogaea

;

Mots-clés espagnols / Spanish Keywords

Basidiomycetes

;

Carbamato

;

Plaguicida

;

Fungicida

;

Atractivo

;

Fenoles

;

Planta oleaginosa

;

Fungi Imperfecti

;

Thallophyta

;

Spermatophyta

;

Angiospermae

;

Dicotyledones

;

Leguminosae

;

Epidemiología

;

Incidencia

;

Tratamiento

;

Puccinia arachidis

;

Phaeoisariopsis personata

;

Cercospora arachidicola

;

Germinación

;

Espora

;

Phoma sorghina

;

Fusarium moniliforme

;

Curvularia lunata

;

Fitopatógeno

;

Eugenol

;

Antifúngico

;

Espectro actividad

;

Aspergillus flavus

;

Alternaria

;

Fungi

;

Arachis hypogaea

;

Mots-clés d'auteur / Author Keywords

antimicrobial

;

groundnut

;

Localisation / Location

INIST-CNRS, Cote INIST : 12673, 35400014572243.0060

Nº notice refdoc (ud4) : 18653346



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