Hobbies / Books   (Gardening, walking, books, films, theatre etc.)

I guess they may, or indeed may not, be a problem, depending on circumstances.

I have an area of block paving for car park hard standing, adjacent to both a cultivated area of garden and path from my front door to front gate.

Ants continually build nests under the paving blocks. They mine the sand from under the block paving, depositing 'pyramids' of excavated material upon surface of the blocks.

This results in subsidence of the blocks, which if not rectified, further leads to water pooling, and if frost, to spalling of the paving blocks.

Consequently, expense and more work awaits if I do not deal with ants.