The answer to 'sod dying plants' is that there are several common causes, including improper installation, lack of water, disease, and pest infestations. Symptoms can include yellowing, browning, or bare patches in the lawn. To fix the problem, first identify the root cause, then take appropriate action such as adjusting watering, treating disease or pests, or re-sodding the affected areas.
For minor issues, homeowners can often address the problem themselves. However, for more serious or persistent problems, it's best to consult a professional landscaper who can properly diagnose and treat the issue.