Biocontrol Science and Technology (2002) 12, 195-204

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B. Meena, R. Radhajeyalakshmi, T. Marimuthu, P. Vidhyasekaran and R. Velazhahan (2002)
Biological control of groundnut late leaf spot and rust by seed and foliar applications of a powder formulation of Pseudomonas fluorescens
Biocontrol Science and Technology 12 (2), 195-204
Abstract: Glasshouse and field trials were conducted to determine the efficacy of a talc-based powder formulation of Pseudomonas fluorescens strain Pf1 in controlling groundnut leaf spot (Cercosporidium personatum) and rust (Puccinia arachidis). Seed treatment with the talc-based powder formulation of the bacterium alone effectively reduced the severity of leaf spot and rust. When the treated seeds were sown in soil, the antagonist moved to the rhizosphere and multiplied well in it. Foliar application with the powder formulation effectively controlled the groundnut leaf spot and rust. P. fluorescens multiplied well in the phyllosphere after foliar application of powder formulation. Combined application of the P. fluorescens formulation to seed and foliage effectively controlled leaf spot and rust, and increased the pod yield in greenhouse and field tests.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Rethinasamy Velazhahan

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
application technology


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Puccinia arachidis Groundnut/peanut (Arachis hypogaea)
Nothopassalora personata Groundnut/peanut (Arachis hypogaea)
Pseudomonas fluorescens (antagonist) Puccinia arachidis Groundnut/peanut (Arachis hypogaea)
Pseudomonas fluorescens (antagonist) Nothopassalora personata Groundnut/peanut (Arachis hypogaea)