negative regulation of aeciospore formation
Any process that stops, prevents, or reduces the frequency, rate or extent of aeciospore formation, a process in which a dikaryotic spore of typically a rust fungus is produced in an aecium.
GO:0043944
negative regulation of asexual sporulation resulting in formation of a cellular spore
is_a
GO:0075248
regulation of aeciospore formation
is_a
GO:0075247
aeciospore formation
negatively_regulates