Biological control of fig root rot disease

Abstract

The study aimed to isolate and diagnose pathogens of fig root rot disease in addition to evaluation effect of the biological control agents Trichoderma harzianum and Penicillium cyclpium in control of the pathogens of fig root rot. It was found fungi accompanying the roots of fig plantlets. Fusarium solani was the most frequent pathogenic fungus, followed by Rhizoctonia solani. The results showed a high effectiveness of biological agents in inhibiting the growth of pathogenic fungi, as the percentage of inhibition of the fungus T. harzianum against the fungus F. solani reached 100%. The percentage of inhibition against the pathogenic fungus R.solani was 89.99%. As for the bioagent P. cyclopium, the results displayed its high antagonistic ability against the two pathogenic fungi. As well as, the test results revealed the antagonistic ability of the microorganism EM-1 formula against the pathogenic fungi F.solani and R.solani that cause the root rot disease of fig plantlets.