Fitopatologia Brasileira (2005) 30, 127-133

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Luciana Z. Ethur, Elena Blume, Marlove Muniz, Antonio Carlos F. da Silva, Daniela R. Stefanelo and Edileusa K. da Rocha (2005)
Fungos antagonistas a Sclerotinia sclerotiorum em pepineiro cultivado em estufa
[Fungi antagonistic to Sclerotinia sclerotiorum on cucumber grown in greenhouse]
Fitopatologia Brasileira 30 (2), 127-133
Abstract: White mold caused by Sclerotinia sclerotiorum may severely damage vegetables grown in greenhouses. To develop a biological control program for this pathogen proper antagonists are needed. This work aimed to select efficient fungi antagonists for controlling S. sclerotiorum on cucumber (Cucumis sativus) grown in greenhouses, and to evaluate the effect of the antagonist on the growth of the vegetable. An isolate of S. sclerotiorum obtained from cucumber and 112 fungi isolates belonging to four genera were used: Trichoderma, Fusarium, Penicillium, and Aspergillus. For the in vitro experiment, the cellophane method was used and eight Trichoderma virens isolates were selected that had inhibited the pathogen growth by 94 to 100%. Greenhouse experiments used sterilized and non-sterilized substrate in plastic cups and non-sterilized substrate in plastic bags. The substrate was inoculated with S. sclerotiorum and the eight isolates of T. virens were used as antagonists. All eight isolates controlled damping-off of plants caused by S. sclerotiorum, but the effect on cucumber growth varied according to the isolate and the substrate 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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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.

Sclerotinia sclerotiorum Cucumber (Cucumis sativus)
Trichoderma virens (antagonist) Sclerotinia sclerotiorum Cucumber (Cucumis sativus)