AVALIAÇÃO DO ANTAGONISMO DO FUNGO TRICHODERMA HARZIANUM IN VITRO E IN VIVO A, FUSARIUM SOLANI NO FEIJOEIRO COMUM (PHASEOLUS VULGARIS)

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.