"Ulocladium botrytis" is also capable of "in vitro" antagonism of root-disease pathogens such as "Heterobasidion annosum", "Phellinus weirii", and "Armillaria ostoyae".Apart from "U. botrytis", other "Ulocladium" species such as "U. atrum" and "U. oudemansii" also present biocontrol potential.