positive regulation of appressorium formation
positive regulation of appressorium formation on or near host
related
Any process that activates or increases the frequency, rate or extent of symbiont appressorium formation.
GO:0051094
positive regulation of developmental process
is_a
GO:0075017
regulation of appressorium formation
is_a
GO:0075016
appressorium formation
positively_regulates