Abstract:
The common bean Phaseolus vulgaris represents the most important grain
legume for human consumption in Brazil. But the indiscriminate use of
pesticides causes great harm to people’s health and the environment. The use
of new methods to combat fungal diseases is necessary to balance the
production chain. The objective of this work was to evaluate the potential of
isolated Trichoderma harzianum against Fusarium solani in vitro and in vivo,
regarding their ability to compete and inhibit the growth of the pathogen in petri
dishes, controlling and reducing the inoculum pressure in the field, using this
microorganism as biocontrollers, of fungal diseases as a good alternative. For
this, the methods of direct confrontation and volatile metabolites were used.
Thus, the use of Trichoderma harzianum conducive to the bean plant areduction in the severity of root rot affected in the plant, then serving as a
biocontrol agent of root rot and a plant growth promoter.
