The answer to 'why is my stone walkway pests' is that your stone walkway may be attracting pests due to cracks, gaps, or improper installation. Common pests that can infest stone walkways include ants, weeds, and small rodents that find shelter and food in the cracks and crevices. This can lead to further damage and an unsightly appearance.
To address this issue, you'll need to inspect your walkway for any signs of damage or gaps, and then take steps to seal and maintain it properly. This may involve using a sealant or grout to fill in cracks, leveling uneven stones, and ensuring proper drainage to prevent water buildup that can attract pests.