The answer to 'sod erosion' is that sod erosion is a common problem that occurs when the soil underneath the sod becomes unstable, causing the sod to wash away or become dislodged. This can happen due to factors like heavy rain, improper installation, or poor soil preparation.
Symptoms of sod erosion include visible gaps or loose sections of sod, as well as muddy, uneven areas in the lawn. To address sod erosion, you can try DIY solutions like re-anchoring the sod, adding topsoil and grass seed, or installing erosion control measures like jute netting or silt fencing. However, for more severe cases or ongoing issues, it's best to call a professional landscaper who can assess the underlying cause and provide a long-term solution.