Fitopatologia Brasileira (2002) 27, 461-467

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Eugenio A. Sanfuentes, Acelino C. Alfenas, Luiz A. Maffia, Silvaldo F. Silveira, Ricardo Penchel and Robert C. Sartorio (2002)
Supressão da atividade saprofítica de Rhizoctonia spp. em solos de jardim clonal de Eucalyptus
[Suppression of Rhizoctonia spp. saprophytic activity in Eucalyptus clonal hedge soils]
Fitopatologia Brasileira 27 (5), 461-467
Abstract: The effectiveness of Trichoderma longibrachiatum (UFV-1), T. inhamatum (UFV-2 and UFV-3), eucalyptus bark compost and leaves of eucalyptus was tested for the suppression of Rhizoctonia spp. in the soil of a clonal hedge of eucalyptus under controlled conditions. Soils artificially infested with Rhizoctonia spp., the antagonists UFV-2 and UFV-3 showed high levels of suppression of the pathogen when the feeding formulation rose from 5 to 50 g wheat bran per liter. However, in the field, the antagonist UFV-3 did not show a significant effect in reducing the inoculum of Rhizoctonia spp. Eucalypt us bark compost resulted in different levels of suppression of the pathogen depending on the compost pile and source. Adding eucalyptus leaves to the soil favored the inoculum of Rhizoctonia spp.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Acelino C. Alfenas, Eugenio A. Sanfuentes

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection


Pest and/or beneficial records:

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


Rhizoctonia solani Eucalypt (Eucalyptus) Brazil (south)
Trichoderma longibrachiatum (antagonist) Rhizoctonia solani Eucalypt (Eucalyptus) Brazil (south)
Trichoderma inhamatum (antagonist) Rhizoctonia solani Eucalypt (Eucalyptus) Brazil (south)