regulation of ascus development
Any process that modulates the frequency, rate or extent of ascus development, a process that leads to the formation of basidium, a sac-like structure produced by fungi of the phylum Ascomycota (sac fungi) in which sexually produced spores (ascospores), usually four or eight in number, are formed.
GO:0075260
regulation of spore-bearing organ development
is_a
GO:0075317
ascus development
regulates