In article ,
Endulini wrote:

My lawn has a number of bald patches where ants have been churning up the
earth (I presume it's ants as they coming swarming out whenever I mow). Do I
need to treat these with ant killer to stop the same problem next year or
can I assume the ants will move on and just put some Patch-Magic or resow to
regenerate them?

None of the above. Ignore them. The only way to eliminate ants is
to concrete the whole garden over, and even that may not do it if
there is even the slightest crack that would allow them into your
house or some other food supply. Even if you killed those nests,
others would move in.

Ants are an essential part of the ecology and are common in lawns.
Brush the soil around, and the grass will recover, or resow and it
may recover faster.


Regards,
Nick Maclaren.