The answer to 'why is my sod erosion' is that sod erosion is typically caused by heavy rainfall, poor drainage, or improper installation. Symptoms include visible washing away of the sod, exposed soil, and potential damage to the underlying ground. Solutions can include improving drainage, re-sodding the affected areas, and taking steps to stabilize the soil and prevent future erosion.
In many cases, sod erosion can be addressed through DIY methods like adding topsoil, reseeding, or installing erosion control measures. However, if the erosion is severe or the underlying issues are complex, it's best to consult a professional landscaper who can properly assess the situation and recommend the most effective long-term solution.