Abstract:
This study was carried out at the Plant Pathology Laboratory, Faculty of Agricultural Studies, Sudan University of Science and Technology for the purpose of isolating and identifying the fungus associated with Fusarium oxysporum on chickpea plant in Shambat area in Sudan University and the possibility of combating it using biological control and fungicide Till Nour using the recommended dose as standard compared to the control.The pathogen was isolated from infected chickpea parts and then the fungus was identified according to culture characteristics as Fusarium oxysporum fs .spcicers. The main control method of F.oxysporum was chemical fungicides. However, this method has been ineffective under conditions conducive to disease development and the high cost of pesticides. The selead to development of alternative methods of controlling the pathogen .That includes the use of biological control agents, which are considered safe, easy to adopt, and environmentally friendly, one such method that can significantly contribute to controlling the disease. Trichoderma is a biological control agent that can be developed for this purpose. Trichoderma harzianum was tested against F.oxysporum and results show that F.oxysporum had a slower growth rate (1.282mm) compared to T. harzianum (3.8mm). Possible from controlledthe pathogenic fungus.It is generally found that T. harzianum is more effective in reducing the growth of F.oxysporum fungi. The results indicated that there is a significant decrease in the growth of the fungus compared to its growth with trichoderma(1.282mm). Since the effect of the pesticide is similar to the effect of the fungus T. harzianum, then you can use the fungus Trichoderma instead of pesticide. This strategy leads to a decrease in the rate of use of fungicides .Thusreduce their cost and increase the safety of the environment.
