Essentially you are trying to create a hash-like operation using the horrible symbolic references. I would suggest that you use are real hash with array references as values:

...

my %tasks = (
              day   => [],
              night => [],
              ip    => []
             );

...

foreach my $task ( keys %tasks )
{
  ...

  push @{$tasks{$task}},\%hash;  
}
[download]

And then strict will be happy and you will have cleaner code.

Check out perlref for more on references.

/J\