The effect of biological control of (Trichoderma harzianum) against Fusarium solani in potato

Abstract

This study was conducted at the laboratory of the plant Pathology Department of plant Protection, College of Agricultural studies, Sudan University of Science and Technology 2020.The aim of this study was to evaluate the effects of Trichoderma harzianum against the growth of Fusarium solaniin vitro. The fungi are an important in causing significant reductions in yield. The fungi were identified based on morphological and cultural characters as Fusarium solani. The results showed that Trichoderma harzianum effectively suppress the growth of the Fusariumo xysporum. The results obtained that the inhibitory effect of Trichoderma harzianumwas more pronounced compared to the control. T. harzianum for antagonistic potentials against the fungus showed the best performance the growth rate of T. harzianum 1.72, 1,88 and 1.88mm) cumbered with the control 0.5,0.8 and 1.1mm) three, five and seven days after inoculation. T. harzianum contains substances that have an effect against the growth of fungi, and it can be investigated for confirmation in other studies.