Fitopatologia Brasileira (2005) 30, 164-168

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Sandra Kunieda-Alonso, Acelino C. Alfenas and Luiz A. Maffia (2005)
Sobrevivência de micélio e escleródios de Rhizoctonia solani tratados com Trichoderma spp., em restos de cultura de Eucalyptus sp.
[Survival of Rhizoctonia solani mycelia and sclerotia treated with Trichoderma spp., in Eucalyp]tus sp. litter]
Fitopatologia Brasileira 30 (2), 164-168
Abstract: The survival of mycelium and sclerotia of Rhizoctonia solani AG1-1C was studied in Eucalyptus sp. litter treated with the antagonists Trichoderma longibrachiatum (UFV-1) and T. inhamatum (UFV-2 and UFV-3) isolates. For 12 months, R. solani survival in Rhizoctonia infected eucalypt leaves, was apparently not affected by environmental factors, nor by possible naturally occurring antagonists. On the other hand, the sclerotial rate survival decreased progressively reaching 26%. The influence of Trichoderma spp. isolates did not affect R. solani survival in eucalypt-infected leaves, but significant and continuous reduction of sclerotia viability was observed when compared to captan treatment, 25 days after treatment with the antagonists. The survival in the fungicide treatment reached significantly low levels in the first evaluation, but its efficiency decreased with time. Progressive reduction and continuous survival of sclerotia was detected in the control as well, but significantly less than any other treatment.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Database assignments for author(s): Acelino C. Alfenas

Research topic(s) for pests/diseases/weeds:
control - general
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)
Trichoderma longibrachiatum (antagonist) Rhizoctonia solani Eucalypt (Eucalyptus)
Trichoderma inhamatum (antagonist) Rhizoctonia solani Eucalypt (Eucalyptus)