Biological control of "Rhizoctonia solani" the causal agent of seedling blight in okra
1989
Abdel-Rahim, A.M. | Abu-Surrieh, A.A.
The present study has been undertaken to determine the efficacy of some Trichoderma spp. for the biological control of Rhizoctonia solani, the causal organism of seedling blight of okra, in Kuwait. In vitro studies showed that isolates of Trichoderma harzianum and some isolates of T. koningi, were highly antagonistic to the pathogen when grown together in culture plates. Culture filtrate of these isolates were able to supress growth of R. solani, if incorporated in the medium. In the glasshouse experiments, isolates of Trichoderma harzianum and some isolates of T. koningi proved to be effective in controlling the disease caused by R. solani on okra plants. However, isolates of T. viride were less effective in controlling the disease. Increasing inoculum concentrations of T. harzianum decreased the incidence of the disease, as compared to T. viride
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